mirror of
https://github.com/ossrs/srs.git
synced 2025-03-09 15:49:59 +00:00
add bandcheck code and modified srs code for merge
This commit is contained in:
wenjiegit
parent
94fb022ef9
commit
adb169eaf1
23 changed files with 3597 additions and 0 deletions
6
trunk/research/SrsBW/html-template/history/history.css
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6
trunk/research/SrsBW/html-template/history/history.css
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/* This CSS stylesheet defines styles used by required elements in a flex application page that supports browser history */
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#ie_historyFrame { width: 0px; height: 0px; display:none }
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#firefox_anchorDiv { width: 0px; height: 0px; display:none }
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#safari_formDiv { width: 0px; height: 0px; display:none }
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#safari_rememberDiv { width: 0px; height: 0px; display:none }
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678
trunk/research/SrsBW/html-template/history/history.js
Normal file
678
trunk/research/SrsBW/html-template/history/history.js
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@ -0,0 +1,678 @@
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BrowserHistoryUtils = {
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addEvent: function(elm, evType, fn, useCapture) {
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useCapture = useCapture || false;
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if (elm.addEventListener) {
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elm.addEventListener(evType, fn, useCapture);
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return true;
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}
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else if (elm.attachEvent) {
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var r = elm.attachEvent('on' + evType, fn);
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return r;
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}
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else {
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elm['on' + evType] = fn;
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}
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}
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}
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BrowserHistory = (function() {
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// type of browser
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var browser = {
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ie: false,
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ie8: false,
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firefox: false,
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safari: false,
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opera: false,
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version: -1
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};
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// Default app state URL to use when no fragment ID present
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var defaultHash = '';
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// Last-known app state URL
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var currentHref = document.location.href;
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// Initial URL (used only by IE)
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var initialHref = document.location.href;
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// Initial URL (used only by IE)
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var initialHash = document.location.hash;
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// History frame source URL prefix (used only by IE)
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var historyFrameSourcePrefix = 'history/historyFrame.html?';
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// History maintenance (used only by Safari)
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var currentHistoryLength = -1;
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// Flag to denote the existence of onhashchange
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var browserHasHashChange = false;
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var historyHash = [];
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var initialState = createState(initialHref, initialHref + '#' + initialHash, initialHash);
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var backStack = [];
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var forwardStack = [];
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var currentObjectId = null;
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//UserAgent detection
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var useragent = navigator.userAgent.toLowerCase();
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if (useragent.indexOf("opera") != -1) {
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browser.opera = true;
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} else if (useragent.indexOf("msie") != -1) {
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browser.ie = true;
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browser.version = parseFloat(useragent.substring(useragent.indexOf('msie') + 4));
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if (browser.version == 8)
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{
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browser.ie = false;
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browser.ie8 = true;
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}
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} else if (useragent.indexOf("safari") != -1) {
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browser.safari = true;
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browser.version = parseFloat(useragent.substring(useragent.indexOf('safari') + 7));
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} else if (useragent.indexOf("gecko") != -1) {
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browser.firefox = true;
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}
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if (browser.ie == true && browser.version == 7) {
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window["_ie_firstload"] = false;
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}
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function hashChangeHandler()
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{
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currentHref = document.location.href;
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var flexAppUrl = getHash();
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//ADR: to fix multiple
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if (typeof BrowserHistory_multiple != "undefined" && BrowserHistory_multiple == true) {
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var pl = getPlayers();
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for (var i = 0; i < pl.length; i++) {
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pl[i].browserURLChange(flexAppUrl);
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}
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} else {
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getPlayer().browserURLChange(flexAppUrl);
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}
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}
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// Accessor functions for obtaining specific elements of the page.
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function getHistoryFrame()
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{
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return document.getElementById('ie_historyFrame');
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}
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function getFormElement()
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{
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return document.getElementById('safari_formDiv');
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}
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function getRememberElement()
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{
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return document.getElementById("safari_remember_field");
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}
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// Get the Flash player object for performing ExternalInterface callbacks.
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// Updated for changes to SWFObject2.
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function getPlayer(id) {
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var i;
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if (id && document.getElementById(id)) {
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var r = document.getElementById(id);
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if (typeof r.SetVariable != "undefined") {
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return r;
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}
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else {
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var o = r.getElementsByTagName("object");
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var e = r.getElementsByTagName("embed");
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for (i = 0; i < o.length; i++) {
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if (typeof o[i].browserURLChange != "undefined")
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return o[i];
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}
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for (i = 0; i < e.length; i++) {
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if (typeof e[i].browserURLChange != "undefined")
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return e[i];
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}
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}
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}
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else {
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var o = document.getElementsByTagName("object");
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var e = document.getElementsByTagName("embed");
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for (i = 0; i < e.length; i++) {
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if (typeof e[i].browserURLChange != "undefined")
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{
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return e[i];
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}
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}
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for (i = 0; i < o.length; i++) {
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if (typeof o[i].browserURLChange != "undefined")
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{
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return o[i];
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}
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}
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}
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return undefined;
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}
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function getPlayers() {
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var i;
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var players = [];
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if (players.length == 0) {
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var tmp = document.getElementsByTagName('object');
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for (i = 0; i < tmp.length; i++)
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{
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if (typeof tmp[i].browserURLChange != "undefined")
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players.push(tmp[i]);
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}
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}
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if (players.length == 0 || players[0].object == null) {
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var tmp = document.getElementsByTagName('embed');
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for (i = 0; i < tmp.length; i++)
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{
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if (typeof tmp[i].browserURLChange != "undefined")
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players.push(tmp[i]);
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}
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}
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return players;
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}
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function getIframeHash() {
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var doc = getHistoryFrame().contentWindow.document;
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var hash = String(doc.location.search);
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if (hash.length == 1 && hash.charAt(0) == "?") {
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hash = "";
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}
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else if (hash.length >= 2 && hash.charAt(0) == "?") {
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hash = hash.substring(1);
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}
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return hash;
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}
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/* Get the current location hash excluding the '#' symbol. */
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function getHash() {
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// It would be nice if we could use document.location.hash here,
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// but it's faulty sometimes.
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var idx = document.location.href.indexOf('#');
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return (idx >= 0) ? document.location.href.substr(idx+1) : '';
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}
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/* Get the current location hash excluding the '#' symbol. */
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function setHash(hash) {
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// It would be nice if we could use document.location.hash here,
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// but it's faulty sometimes.
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if (hash == '') hash = '#'
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document.location.hash = hash;
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}
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function createState(baseUrl, newUrl, flexAppUrl) {
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return { 'baseUrl': baseUrl, 'newUrl': newUrl, 'flexAppUrl': flexAppUrl, 'title': null };
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}
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/* Add a history entry to the browser.
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* baseUrl: the portion of the location prior to the '#'
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* newUrl: the entire new URL, including '#' and following fragment
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* flexAppUrl: the portion of the location following the '#' only
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*/
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function addHistoryEntry(baseUrl, newUrl, flexAppUrl) {
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//delete all the history entries
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forwardStack = [];
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if (browser.ie) {
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//Check to see if we are being asked to do a navigate for the first
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//history entry, and if so ignore, because it's coming from the creation
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//of the history iframe
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if (flexAppUrl == defaultHash && document.location.href == initialHref && window['_ie_firstload']) {
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currentHref = initialHref;
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return;
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}
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if ((!flexAppUrl || flexAppUrl == defaultHash) && window['_ie_firstload']) {
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newUrl = baseUrl + '#' + defaultHash;
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flexAppUrl = defaultHash;
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} else {
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// for IE, tell the history frame to go somewhere without a '#'
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// in order to get this entry into the browser history.
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getHistoryFrame().src = historyFrameSourcePrefix + flexAppUrl;
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}
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setHash(flexAppUrl);
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} else {
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//ADR
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if (backStack.length == 0 && initialState.flexAppUrl == flexAppUrl) {
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initialState = createState(baseUrl, newUrl, flexAppUrl);
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} else if(backStack.length > 0 && backStack[backStack.length - 1].flexAppUrl == flexAppUrl) {
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backStack[backStack.length - 1] = createState(baseUrl, newUrl, flexAppUrl);
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}
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if (browser.safari && !browserHasHashChange) {
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// for Safari, submit a form whose action points to the desired URL
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if (browser.version <= 419.3) {
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var file = window.location.pathname.toString();
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file = file.substring(file.lastIndexOf("/")+1);
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getFormElement().innerHTML = '<form name="historyForm" action="'+file+'#' + flexAppUrl + '" method="GET"></form>';
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//get the current elements and add them to the form
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var qs = window.location.search.substring(1);
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var qs_arr = qs.split("&");
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for (var i = 0; i < qs_arr.length; i++) {
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var tmp = qs_arr[i].split("=");
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var elem = document.createElement("input");
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elem.type = "hidden";
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elem.name = tmp[0];
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elem.value = tmp[1];
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document.forms.historyForm.appendChild(elem);
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}
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document.forms.historyForm.submit();
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} else {
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top.location.hash = flexAppUrl;
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}
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// We also have to maintain the history by hand for Safari
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historyHash[history.length] = flexAppUrl;
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_storeStates();
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} else {
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// Otherwise, just tell the browser to go there
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setHash(flexAppUrl);
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}
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}
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backStack.push(createState(baseUrl, newUrl, flexAppUrl));
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}
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function _storeStates() {
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if (browser.safari) {
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getRememberElement().value = historyHash.join(",");
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}
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}
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function handleBackButton() {
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//The "current" page is always at the top of the history stack.
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var current = backStack.pop();
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if (!current) { return; }
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var last = backStack[backStack.length - 1];
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if (!last && backStack.length == 0){
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last = initialState;
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}
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forwardStack.push(current);
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}
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function handleForwardButton() {
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//summary: private method. Do not call this directly.
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var last = forwardStack.pop();
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if (!last) { return; }
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backStack.push(last);
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}
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function handleArbitraryUrl() {
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//delete all the history entries
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forwardStack = [];
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}
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/* Called periodically to poll to see if we need to detect navigation that has occurred */
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function checkForUrlChange() {
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if (browser.ie) {
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if (currentHref != document.location.href && currentHref + '#' != document.location.href) {
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//This occurs when the user has navigated to a specific URL
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//within the app, and didn't use browser back/forward
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//IE seems to have a bug where it stops updating the URL it
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//shows the end-user at this point, but programatically it
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//appears to be correct. Do a full app reload to get around
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//this issue.
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if (browser.version < 7) {
|
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currentHref = document.location.href;
|
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document.location.reload();
|
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} else {
|
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if (getHash() != getIframeHash()) {
|
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// this.iframe.src = this.blankURL + hash;
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var sourceToSet = historyFrameSourcePrefix + getHash();
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getHistoryFrame().src = sourceToSet;
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currentHref = document.location.href;
|
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}
|
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}
|
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}
|
||||
}
|
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|
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if (browser.safari && !browserHasHashChange) {
|
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// For Safari, we have to check to see if history.length changed.
|
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if (currentHistoryLength >= 0 && history.length != currentHistoryLength) {
|
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//alert("did change: " + history.length + ", " + historyHash.length + "|" + historyHash[history.length] + "|>" + historyHash.join("|"));
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var flexAppUrl = getHash();
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if (browser.version < 528.16 /* Anything earlier than Safari 4.0 */)
|
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{
|
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// If it did change and we're running Safari 3.x or earlier,
|
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// then we have to look the old state up in our hand-maintained
|
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// array since document.location.hash won't have changed,
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// then call back into BrowserManager.
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currentHistoryLength = history.length;
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flexAppUrl = historyHash[currentHistoryLength];
|
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}
|
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|
||||
//ADR: to fix multiple
|
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if (typeof BrowserHistory_multiple != "undefined" && BrowserHistory_multiple == true) {
|
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var pl = getPlayers();
|
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for (var i = 0; i < pl.length; i++) {
|
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pl[i].browserURLChange(flexAppUrl);
|
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}
|
||||
} else {
|
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getPlayer().browserURLChange(flexAppUrl);
|
||||
}
|
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_storeStates();
|
||||
}
|
||||
}
|
||||
if (browser.firefox && !browserHasHashChange) {
|
||||
if (currentHref != document.location.href) {
|
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var bsl = backStack.length;
|
||||
|
||||
var urlActions = {
|
||||
back: false,
|
||||
forward: false,
|
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set: false
|
||||
}
|
||||
|
||||
if ((window.location.hash == initialHash || window.location.href == initialHref) && (bsl == 1)) {
|
||||
urlActions.back = true;
|
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// FIXME: could this ever be a forward button?
|
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// we can't clear it because we still need to check for forwards. Ugg.
|
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// clearInterval(this.locationTimer);
|
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handleBackButton();
|
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}
|
||||
|
||||
// first check to see if we could have gone forward. We always halt on
|
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// a no-hash item.
|
||||
if (forwardStack.length > 0) {
|
||||
if (forwardStack[forwardStack.length-1].flexAppUrl == getHash()) {
|
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urlActions.forward = true;
|
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handleForwardButton();
|
||||
}
|
||||
}
|
||||
|
||||
// ok, that didn't work, try someplace back in the history stack
|
||||
if ((bsl >= 2) && (backStack[bsl - 2])) {
|
||||
if (backStack[bsl - 2].flexAppUrl == getHash()) {
|
||||
urlActions.back = true;
|
||||
handleBackButton();
|
||||
}
|
||||
}
|
||||
|
||||
if (!urlActions.back && !urlActions.forward) {
|
||||
var foundInStacks = {
|
||||
back: -1,
|
||||
forward: -1
|
||||
}
|
||||
|
||||
for (var i = 0; i < backStack.length; i++) {
|
||||
if (backStack[i].flexAppUrl == getHash() && i != (bsl - 2)) {
|
||||
arbitraryUrl = true;
|
||||
foundInStacks.back = i;
|
||||
}
|
||||
}
|
||||
for (var i = 0; i < forwardStack.length; i++) {
|
||||
if (forwardStack[i].flexAppUrl == getHash() && i != (bsl - 2)) {
|
||||
arbitraryUrl = true;
|
||||
foundInStacks.forward = i;
|
||||
}
|
||||
}
|
||||
handleArbitraryUrl();
|
||||
}
|
||||
|
||||
// Firefox changed; do a callback into BrowserManager to tell it.
|
||||
currentHref = document.location.href;
|
||||
var flexAppUrl = getHash();
|
||||
//ADR: to fix multiple
|
||||
if (typeof BrowserHistory_multiple != "undefined" && BrowserHistory_multiple == true) {
|
||||
var pl = getPlayers();
|
||||
for (var i = 0; i < pl.length; i++) {
|
||||
pl[i].browserURLChange(flexAppUrl);
|
||||
}
|
||||
} else {
|
||||
getPlayer().browserURLChange(flexAppUrl);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var _initialize = function () {
|
||||
|
||||
browserHasHashChange = ("onhashchange" in document.body);
|
||||
|
||||
if (browser.ie)
|
||||
{
|
||||
var scripts = document.getElementsByTagName('script');
|
||||
for (var i = 0, s; s = scripts[i]; i++) {
|
||||
if (s.src.indexOf("history.js") > -1) {
|
||||
var iframe_location = (new String(s.src)).replace("history.js", "historyFrame.html");
|
||||
}
|
||||
}
|
||||
historyFrameSourcePrefix = iframe_location + "?";
|
||||
var src = historyFrameSourcePrefix;
|
||||
|
||||
var iframe = document.createElement("iframe");
|
||||
iframe.id = 'ie_historyFrame';
|
||||
iframe.name = 'ie_historyFrame';
|
||||
iframe.src = 'javascript:false;';
|
||||
|
||||
try {
|
||||
document.body.appendChild(iframe);
|
||||
} catch(e) {
|
||||
setTimeout(function() {
|
||||
document.body.appendChild(iframe);
|
||||
}, 0);
|
||||
}
|
||||
}
|
||||
|
||||
if (browser.safari && !browserHasHashChange)
|
||||
{
|
||||
var rememberDiv = document.createElement("div");
|
||||
rememberDiv.id = 'safari_rememberDiv';
|
||||
document.body.appendChild(rememberDiv);
|
||||
rememberDiv.innerHTML = '<input type="text" id="safari_remember_field" style="width: 500px;">';
|
||||
|
||||
var formDiv = document.createElement("div");
|
||||
formDiv.id = 'safari_formDiv';
|
||||
document.body.appendChild(formDiv);
|
||||
|
||||
var reloader_content = document.createElement('div');
|
||||
reloader_content.id = 'safarireloader';
|
||||
var scripts = document.getElementsByTagName('script');
|
||||
for (var i = 0, s; s = scripts[i]; i++) {
|
||||
if (s.src.indexOf("history.js") > -1) {
|
||||
html = (new String(s.src)).replace(".js", ".html");
|
||||
}
|
||||
}
|
||||
reloader_content.innerHTML = '<iframe id="safarireloader-iframe" src="about:blank" frameborder="no" scrolling="no"></iframe>';
|
||||
document.body.appendChild(reloader_content);
|
||||
reloader_content.style.position = 'absolute';
|
||||
reloader_content.style.left = reloader_content.style.top = '-9999px';
|
||||
iframe = reloader_content.getElementsByTagName('iframe')[0];
|
||||
|
||||
if (document.getElementById("safari_remember_field").value != "" ) {
|
||||
historyHash = document.getElementById("safari_remember_field").value.split(",");
|
||||
}
|
||||
}
|
||||
|
||||
if (browserHasHashChange)
|
||||
document.body.onhashchange = hashChangeHandler;
|
||||
}
|
||||
|
||||
return {
|
||||
historyHash: historyHash,
|
||||
backStack: function() { return backStack; },
|
||||
forwardStack: function() { return forwardStack },
|
||||
getPlayer: getPlayer,
|
||||
initialize: function(src) {
|
||||
_initialize(src);
|
||||
},
|
||||
setURL: function(url) {
|
||||
document.location.href = url;
|
||||
},
|
||||
getURL: function() {
|
||||
return document.location.href;
|
||||
},
|
||||
getTitle: function() {
|
||||
return document.title;
|
||||
},
|
||||
setTitle: function(title) {
|
||||
try {
|
||||
backStack[backStack.length - 1].title = title;
|
||||
} catch(e) { }
|
||||
//if on safari, set the title to be the empty string.
|
||||
if (browser.safari) {
|
||||
if (title == "") {
|
||||
try {
|
||||
var tmp = window.location.href.toString();
|
||||
title = tmp.substring((tmp.lastIndexOf("/")+1), tmp.lastIndexOf("#"));
|
||||
} catch(e) {
|
||||
title = "";
|
||||
}
|
||||
}
|
||||
}
|
||||
document.title = title;
|
||||
},
|
||||
setDefaultURL: function(def)
|
||||
{
|
||||
defaultHash = def;
|
||||
def = getHash();
|
||||
//trailing ? is important else an extra frame gets added to the history
|
||||
//when navigating back to the first page. Alternatively could check
|
||||
//in history frame navigation to compare # and ?.
|
||||
if (browser.ie)
|
||||
{
|
||||
window['_ie_firstload'] = true;
|
||||
var sourceToSet = historyFrameSourcePrefix + def;
|
||||
var func = function() {
|
||||
getHistoryFrame().src = sourceToSet;
|
||||
window.location.replace("#" + def);
|
||||
setInterval(checkForUrlChange, 50);
|
||||
}
|
||||
try {
|
||||
func();
|
||||
} catch(e) {
|
||||
window.setTimeout(function() { func(); }, 0);
|
||||
}
|
||||
}
|
||||
|
||||
if (browser.safari)
|
||||
{
|
||||
currentHistoryLength = history.length;
|
||||
if (historyHash.length == 0) {
|
||||
historyHash[currentHistoryLength] = def;
|
||||
var newloc = "#" + def;
|
||||
window.location.replace(newloc);
|
||||
} else {
|
||||
//alert(historyHash[historyHash.length-1]);
|
||||
}
|
||||
setInterval(checkForUrlChange, 50);
|
||||
}
|
||||
|
||||
|
||||
if (browser.firefox || browser.opera)
|
||||
{
|
||||
var reg = new RegExp("#" + def + "$");
|
||||
if (window.location.toString().match(reg)) {
|
||||
} else {
|
||||
var newloc ="#" + def;
|
||||
window.location.replace(newloc);
|
||||
}
|
||||
setInterval(checkForUrlChange, 50);
|
||||
}
|
||||
|
||||
},
|
||||
|
||||
/* Set the current browser URL; called from inside BrowserManager to propagate
|
||||
* the application state out to the container.
|
||||
*/
|
||||
setBrowserURL: function(flexAppUrl, objectId) {
|
||||
if (browser.ie && typeof objectId != "undefined") {
|
||||
currentObjectId = objectId;
|
||||
}
|
||||
//fromIframe = fromIframe || false;
|
||||
//fromFlex = fromFlex || false;
|
||||
//alert("setBrowserURL: " + flexAppUrl);
|
||||
//flexAppUrl = (flexAppUrl == "") ? defaultHash : flexAppUrl ;
|
||||
|
||||
var pos = document.location.href.indexOf('#');
|
||||
var baseUrl = pos != -1 ? document.location.href.substr(0, pos) : document.location.href;
|
||||
var newUrl = baseUrl + '#' + flexAppUrl;
|
||||
|
||||
if (document.location.href != newUrl && document.location.href + '#' != newUrl) {
|
||||
currentHref = newUrl;
|
||||
addHistoryEntry(baseUrl, newUrl, flexAppUrl);
|
||||
currentHistoryLength = history.length;
|
||||
}
|
||||
},
|
||||
|
||||
browserURLChange: function(flexAppUrl) {
|
||||
var objectId = null;
|
||||
if (browser.ie && currentObjectId != null) {
|
||||
objectId = currentObjectId;
|
||||
}
|
||||
|
||||
if (typeof BrowserHistory_multiple != "undefined" && BrowserHistory_multiple == true) {
|
||||
var pl = getPlayers();
|
||||
for (var i = 0; i < pl.length; i++) {
|
||||
try {
|
||||
pl[i].browserURLChange(flexAppUrl);
|
||||
} catch(e) { }
|
||||
}
|
||||
} else {
|
||||
try {
|
||||
getPlayer(objectId).browserURLChange(flexAppUrl);
|
||||
} catch(e) { }
|
||||
}
|
||||
|
||||
currentObjectId = null;
|
||||
},
|
||||
getUserAgent: function() {
|
||||
return navigator.userAgent;
|
||||
},
|
||||
getPlatform: function() {
|
||||
return navigator.platform;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
})();
|
||||
|
||||
// Initialization
|
||||
|
||||
// Automated unit testing and other diagnostics
|
||||
|
||||
function setURL(url)
|
||||
{
|
||||
document.location.href = url;
|
||||
}
|
||||
|
||||
function backButton()
|
||||
{
|
||||
history.back();
|
||||
}
|
||||
|
||||
function forwardButton()
|
||||
{
|
||||
history.forward();
|
||||
}
|
||||
|
||||
function goForwardOrBackInHistory(step)
|
||||
{
|
||||
history.go(step);
|
||||
}
|
||||
|
||||
//BrowserHistoryUtils.addEvent(window, "load", function() { BrowserHistory.initialize(); });
|
||||
(function(i) {
|
||||
var u =navigator.userAgent;var e=/*@cc_on!@*/false;
|
||||
var st = setTimeout;
|
||||
if(/webkit/i.test(u)){
|
||||
st(function(){
|
||||
var dr=document.readyState;
|
||||
if(dr=="loaded"||dr=="complete"){i()}
|
||||
else{st(arguments.callee,10);}},10);
|
||||
} else if((/mozilla/i.test(u)&&!/(compati)/.test(u)) || (/opera/i.test(u))){
|
||||
document.addEventListener("DOMContentLoaded",i,false);
|
||||
} else if(e){
|
||||
(function(){
|
||||
var t=document.createElement('doc:rdy');
|
||||
try{t.doScroll('left');
|
||||
i();t=null;
|
||||
}catch(e){st(arguments.callee,0);}})();
|
||||
} else{
|
||||
window.onload=i;
|
||||
}
|
||||
})( function() {BrowserHistory.initialize();} );
|
||||
29
trunk/research/SrsBW/html-template/history/historyFrame.html
Normal file
29
trunk/research/SrsBW/html-template/history/historyFrame.html
Normal file
|
|
@ -0,0 +1,29 @@
|
|||
<html>
|
||||
<head>
|
||||
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
|
||||
<META HTTP-EQUIV="Expires" CONTENT="-1">
|
||||
</head>
|
||||
<body>
|
||||
<script>
|
||||
function processUrl()
|
||||
{
|
||||
|
||||
var pos = url.indexOf("?");
|
||||
url = pos != -1 ? url.substr(pos + 1) : "";
|
||||
if (!parent._ie_firstload) {
|
||||
parent.BrowserHistory.setBrowserURL(url);
|
||||
try {
|
||||
parent.BrowserHistory.browserURLChange(url);
|
||||
} catch(e) { }
|
||||
} else {
|
||||
parent._ie_firstload = false;
|
||||
}
|
||||
}
|
||||
|
||||
var url = document.location.href;
|
||||
processUrl();
|
||||
document.write(encodeURIComponent(url));
|
||||
</script>
|
||||
Hidden frame for Browser History support.
|
||||
</body>
|
||||
</html>
|
||||
Loading…
Add table
Add a link
Reference in a new issue