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bootstrap.js
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bootstrap.js
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var Ext = Ext || {};
Ext.manifest = Ext.manifest || "classic.json";
// @tag core
// @define Ext.Boot
var Ext = Ext || {};
//<editor-fold desc="Boot">
/**
* @class Ext.Boot
* @singleton
* @private
*/
Ext.Boot = Ext.Boot || (function (emptyFn) {
var doc = document,
_emptyArray = [],
_config = {
/**
* @cfg {Boolean} [disableCaching=true]
* If `true` current timestamp is added to script URL's to prevent caching.
* In debug builds, adding a "cache" or "disableCacheBuster" query parameter
* to the page's URL will set this to `false`.
*/
disableCaching: (/[?&](?:cache|disableCacheBuster)\b/i.test(location.search) ||
!(/http[s]?\:/i.test(location.href)) ||
/(^|[ ;])ext-cache=1/.test(doc.cookie)) ? false :
true,
/**
* @cfg {String} [disableCachingParam="_dc"]
* The query parameter name for the cache buster's timestamp.
*/
disableCachingParam: '_dc',
/**
* @cfg {Boolean} loadDelay
* Millisecond delay between asynchronous script injection (prevents stack
* overflow on some user agents) 'false' disables delay but potentially
* increases stack load.
*/
loadDelay: false,
/**
* @cfg {Boolean} preserveScripts
* `false` to remove asynchronously loaded scripts, `true` to retain script
* element for browser debugger compatibility and improved load performance.
*/
preserveScripts: true,
/**
* @cfg {String} [charset=UTF-8]
* Optional charset to specify encoding of dynamic content.
*/
charset: 'UTF-8'
},
_assetConfig= {},
cssRe = /\.css(?:\?|$)/i,
resolverEl = doc.createElement('a'),
isBrowser = typeof window !== 'undefined',
_environment = {
browser: isBrowser,
node: !isBrowser && (typeof require === 'function'),
phantom: (window && (window._phantom || window.callPhantom)) || /PhantomJS/.test(window.navigator.userAgent)
},
_tags = (Ext.platformTags = {}),
_debug = function (message) {
//console.log(message);
},
_apply = function (object, config, defaults) {
if (defaults) {
_apply(object, defaults);
}
if (object && config && typeof config === 'object') {
for (var i in config) {
object[i] = config[i];
}
}
return object;
},
_merge = function() {
var lowerCase = false,
obj = Array.prototype.shift.call(arguments),
index, i, len, value;
if (typeof arguments[arguments.length - 1] === 'boolean') {
lowerCase = Array.prototype.pop.call(arguments);
}
len = arguments.length;
for (index = 0; index < len; index++) {
value = arguments[index];
if (typeof value === 'object') {
for (i in value) {
obj[lowerCase ? i.toLowerCase() : i] = value[i];
}
}
}
return obj;
},
_getKeys = (typeof Object.keys == 'function') ?
function(object){
if (!object) {
return [];
}
return Object.keys(object);
} :
function(object) {
var keys = [],
property;
for (property in object) {
if (object.hasOwnProperty(property)) {
keys.push(property);
}
}
return keys;
},
/*
* The Boot loader class manages Request objects that contain one or
* more individual urls that need to be loaded. Requests can be performed
* synchronously or asynchronously, but will always evaluate urls in the
* order specified on the request object.
*/
Boot = {
loading: 0,
loaded: 0,
apply: _apply,
env: _environment,
config: _config,
/**
* @cfg {Object} assetConfig
* A map (url->assetConfig) that contains information about assets loaded by the Microlaoder.
*/
assetConfig: _assetConfig,
// Keyed by absolute URL this object holds "true" if that URL is already loaded
// or an array of callbacks to call once it loads.
scripts: {
/*
Entry objects
'http://foo.com/bar/baz/Thing.js': {
done: true,
el: scriptEl || linkEl,
preserve: true,
requests: [ request1, ... ]
}
*/
},
/**
* contains the current script name being loaded
* (loadSync or sequential load only)
*/
currentFile: null,
suspendedQueue: [],
currentRequest: null,
// when loadSync is called, need to cause subsequent load requests to also be loadSync,
// eg, when Ext.require(...) is called
syncMode: false,
/*
* simple helper method for debugging
*/
debug: _debug,
/**
* enables / disables loading scripts via script / link elements rather
* than using ajax / eval
*/
useElements: true,
listeners: [],
Request: Request,
Entry: Entry,
allowMultipleBrowsers: false,
browserNames: {
ie: 'IE',
firefox: 'Firefox',
safari: 'Safari',
chrome: 'Chrome',
opera: 'Opera',
dolfin: 'Dolfin',
edge: 'Edge',
webosbrowser: 'webOSBrowser',
chromeMobile: 'ChromeMobile',
chromeiOS: 'ChromeiOS',
silk: 'Silk',
other: 'Other'
},
osNames: {
ios: 'iOS',
android: 'Android',
windowsPhone: 'WindowsPhone',
webos: 'webOS',
blackberry: 'BlackBerry',
rimTablet: 'RIMTablet',
mac: 'MacOS',
win: 'Windows',
tizen: 'Tizen',
linux: 'Linux',
bada: 'Bada',
chromeOS: 'ChromeOS',
other: 'Other'
},
browserPrefixes: {
ie: 'MSIE ',
edge: 'Edge/',
firefox: 'Firefox/',
chrome: 'Chrome/',
safari: 'Version/',
opera: 'OPR/',
dolfin: 'Dolfin/',
webosbrowser: 'wOSBrowser/',
chromeMobile: 'CrMo/',
chromeiOS: 'CriOS/',
silk: 'Silk/'
},
// When a UA reports multiple browsers this list is used to prioritize the 'real' browser
// lower index number will win
browserPriority: [
'edge',
'opera',
'dolfin',
'webosbrowser',
'silk',
'chromeiOS',
'chromeMobile',
'ie',
'firefox',
'safari',
'chrome'
],
osPrefixes: {
tizen: '(Tizen )',
ios: 'i(?:Pad|Phone|Pod)(?:.*)CPU(?: iPhone)? OS ',
android: '(Android |HTC_|Silk/)', // Some HTC devices ship with an OSX userAgent by default,
// so we need to add a direct check for HTC_
windowsPhone: 'Windows Phone ',
blackberry: '(?:BlackBerry|BB)(?:.*)Version\/',
rimTablet: 'RIM Tablet OS ',
webos: '(?:webOS|hpwOS)\/',
bada: 'Bada\/',
chromeOS: 'CrOS '
},
fallbackOSPrefixes: {
windows: 'win',
mac: 'mac',
linux: 'linux'
},
devicePrefixes: {
iPhone: 'iPhone',
iPod: 'iPod',
iPad: 'iPad'
},
maxIEVersion: 12,
/**
* The default function that detects various platforms and sets tags
* in the platform map accordingly. Examples are iOS, android, tablet, etc.
* @param tags the set of tags to populate
*/
detectPlatformTags: function () {
var me = this,
ua = navigator.userAgent,
isMobile = /Mobile(\/|\s)/.test(ua),
element = document.createElement('div'),
isEventSupported = function (name, tag) {
if (tag === undefined) {
tag = window;
}
var eventName = 'on' + name.toLowerCase(),
isSupported = (eventName in element);
if (!isSupported) {
if (element.setAttribute && element.removeAttribute) {
element.setAttribute(eventName, '');
isSupported = typeof element[eventName] === 'function';
if (typeof element[eventName] !== 'undefined') {
element[eventName] = undefined;
}
element.removeAttribute(eventName);
}
}
return isSupported;
},
// Browser Detection
getBrowsers = function () {
var browsers = {},
maxIEVersion, prefix,
value, key, index, len, match, version, matched;
// MS Edge browser (and possibly others) can report multiple browsers in the UserAgent
// "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.10240"
// we use this to prioritize the actual browser in this situation
len = me.browserPriority.length;
for (index = 0; index < len; index++) {
key = me.browserPriority[index];
if (!matched) {
value = me.browserPrefixes[key];
match = ua.match(new RegExp('(' + value + ')([\\w\\._]+)'));
version = match && match.length > 1 ? parseInt(match[2]) : 0;
if (version) {
matched = true;
}
} else {
version = 0;
}
browsers[key] = version;
}
//Deal with IE document mode
if (browsers.ie) {
var mode = document.documentMode;
if (mode >= 8) {
browsers.ie = mode;
}
}
// Fancy IE greater than and less then quick tags
version = browsers.ie || false;
maxIEVersion = Math.max(version, me.maxIEVersion);
for (index = 8; index <= maxIEVersion; ++index) {
prefix = 'ie' + index;
browsers[prefix + 'm'] = version ? version <= index : 0;
browsers[prefix] = version ? version === index : 0;
browsers[prefix + 'p'] = version ? version >= index : 0;
}
return browsers;
},
//OS Detection
getOperatingSystems = function () {
var systems = {},
value, key, keys, index, len, match, matched, version, activeCount;
keys = _getKeys(me.osPrefixes);
len = keys.length;
for (index = 0, activeCount = 0; index < len; index++) {
key = keys[index];
value = me.osPrefixes[key];
match = ua.match(new RegExp('(' + value + ')([^\\s;]+)'));
matched = match ? match[1] : null;
// This is here because some HTC android devices show an OSX Snow Leopard userAgent by default.
// And the Kindle Fire doesn't have any indicator of Android as the OS in its User Agent
if (matched && (matched === 'HTC_' || matched === 'Silk/')) {
version = 2.3;
} else {
version = match && match.length > 1 ? parseFloat(match[match.length - 1]) : 0;
}
if (version) {
activeCount++;
}
systems[key] = version;
}
keys = _getKeys(me.fallbackOSPrefixes);
// If no OS could be found we resort to the fallbacks, otherwise we just
// falsify the fallbacks
len = keys.length;
for (index = 0; index < len; index++) {
key = keys[index];
// No OS was detected from osPrefixes
if (activeCount === 0) {
value = me.fallbackOSPrefixes[key];
match = ua.toLowerCase().match(new RegExp(value));
systems[key] = match ? true : 0;
} else {
systems[key] = 0;
}
}
return systems;
},
// Device Detection
getDevices = function () {
var devices = {},
value, key, keys, index, len, match;
keys = _getKeys(me.devicePrefixes);
len = keys.length;
for (index = 0; index < len; index++) {
key = keys[index];
value = me.devicePrefixes[key];
match = ua.match(new RegExp(value));
devices[key] = match ? true : 0;
}
return devices;
},
browsers = getBrowsers(),
systems = getOperatingSystems(),
devices = getDevices(),
platformParams = Boot.loadPlatformsParam();
// We apply platformParams from the query here first to allow for forced user valued
// to be used in calculation of generated tags
_merge(_tags, browsers, systems, devices, platformParams, true);
_tags.phone = !!((_tags.iphone || _tags.ipod) ||
(!_tags.silk && (_tags.android && (_tags.android < 3 || isMobile))) ||
(_tags.blackberry && isMobile) ||
(_tags.windowsphone));
_tags.tablet = !!(!_tags.phone && (
_tags.ipad ||
_tags.android ||
_tags.silk ||
_tags.rimtablet ||
(_tags.ie10 && /; Touch/.test(ua))
));
_tags.touch =
// if the browser has touch events we can be reasonably sure the device has
// a touch screen
isEventSupported('touchend') ||
// browsers that use pointer event have maxTouchPoints > 0 if the
// device supports touch input
// http://www.w3.org/TR/pointerevents/#widl-Navigator-maxTouchPoints
navigator.maxTouchPoints ||
// IE10 uses a vendor-prefixed maxTouchPoints property
navigator.msMaxTouchPoints;
_tags.desktop = !_tags.phone && !_tags.tablet;
_tags.cordova = _tags.phonegap = !!(window.PhoneGap || window.Cordova || window.cordova);
_tags.webview = /(iPhone|iPod|iPad).*AppleWebKit(?!.*Safari)(?!.*FBAN)/i.test(ua);
_tags.androidstock = (_tags.android <= 4.3) && (_tags.safari || _tags.silk);
// Re-apply any query params here to allow for user override of generated tags (desktop, touch, tablet, etc)
_merge(_tags, platformParams, true);
},
/**
* Extracts user supplied platform tags from the "platformTags" query parameter
* of the form:
*
* ?platformTags=name:state,name:state,...
*
* (each tag defaults to true when state is unspecified)
*
* Example:
*
* ?platformTags=isTablet,isPhone:false,isDesktop:0,iOS:1,Safari:true, ...
*
* @returns {Object} the platform tags supplied by the query string
*/
loadPlatformsParam: function () {
// Check if the ?platform parameter is set in the URL
var paramsString = window.location.search.substr(1),
paramsArray = paramsString.split("&"),
params = {}, i,
platforms = {},
tmpArray, tmplen, platform, name, enabled;
for (i = 0; i < paramsArray.length; i++) {
tmpArray = paramsArray[i].split("=");
params[tmpArray[0]] = tmpArray[1];
}
if (params.platformTags) {
tmpArray = params.platformTags.split(",");
for (tmplen = tmpArray.length, i = 0; i < tmplen; i++) {
platform = tmpArray[i].split(":");
name = platform[0];
enabled=true;
if (platform.length > 1) {
enabled = platform[1];
if (enabled === 'false' || enabled === '0') {
enabled = false;
}
}
platforms[name] = enabled;
}
}
return platforms;
},
filterPlatform: function (platform, excludes) {
platform = _emptyArray.concat(platform || _emptyArray);
excludes = _emptyArray.concat(excludes || _emptyArray);
var plen = platform.length,
elen = excludes.length,
include = (!plen && elen), // default true if only excludes specified
i, tag;
for (i = 0; i < plen && !include; i++) {
tag = platform[i];
include = !!_tags[tag];
}
for (i = 0; i < elen && include; i++) {
tag = excludes[i];
include = !_tags[tag];
}
return include;
},
init: function () {
var scriptEls = doc.getElementsByTagName('script'),
len = scriptEls.length,
re = /\/ext(\-[a-z\-]+)?\.js$/,
entry, script, src, state, baseUrl, key, n, origin;
// Since we are loading after other scripts, and we needed to gather them
// anyway, we track them in _scripts so we don't have to ask for them all
// repeatedly.
for (n = 0; n < len; n++) {
src = (script = scriptEls[n]).src;
if (!src) {
continue;
}
state = script.readyState || null;
// If we find a script file called "ext-*.js", then the base path is that file's base path.
if (!baseUrl) {
if (re.test(src)) {
Boot.hasReadyState = ("readyState" in script);
Boot.hasAsync = ("async" in script) || !Boot.hasReadyState;
baseUrl = src;
}
}
if (!Boot.scripts[key = Boot.canonicalUrl(src)]) {
_debug("creating entry " + key + " in Boot.init");
entry = new Entry({
key: key,
url: src,
done: state === null || // non-IE
state === 'loaded' || state === 'complete', // IE only
el: script,
prop: 'src'
});
}
}
if (!baseUrl) {
script = scriptEls[scriptEls.length - 1];
baseUrl = script.src;
Boot.hasReadyState = ('readyState' in script);
Boot.hasAsync = ("async" in script) || !Boot.hasReadyState;
}
Boot.baseUrl = baseUrl.substring(0, baseUrl.lastIndexOf('/') + 1);
origin = window.location.origin ||
window.location.protocol +
"//" +
window.location.hostname +
(window.location.port ? ':' + window.location.port: '');
Boot.origin = origin;
Boot.detectPlatformTags();
Ext.filterPlatform = Boot.filterPlatform;
},
/**
* This method returns a canonical URL for the given URL.
*
* For example, the following all produce the same canonical URL (which is the
* last one):
*
* http://foo.com/bar/baz/zoo/derp/../../goo/Thing.js?_dc=12345
* http://foo.com/bar/baz/zoo/derp/../../goo/Thing.js
* http://foo.com/bar/baz/zoo/derp/../jazz/../../goo/Thing.js
* http://foo.com/bar/baz/zoo/../goo/Thing.js
* http://foo.com/bar/baz/goo/Thing.js
*
* @private
*/
canonicalUrl: function (url) {
// @TODO - see if we need this fallback logic
// http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
resolverEl.href = url;
var ret = resolverEl.href,
dc = _config.disableCachingParam,
pos = dc ? ret.indexOf(dc + '=') : -1,
c, end;
// If we have a _dc query parameter we need to remove it from the canonical
// URL.
if (pos > 0 && ((c = ret.charAt(pos - 1)) === '?' || c === '&')) {
end = ret.indexOf('&', pos);
end = (end < 0) ? '' : ret.substring(end);
if (end && c === '?') {
++pos; // keep the '?'
end = end.substring(1); // remove the '&'
}
ret = ret.substring(0, pos - 1) + end;
}
return ret;
},
/**
* Get the config value corresponding to the specified name. If no name is given, will return the config object
* @param {String} name The config property name
* @return {Object}
*/
getConfig: function (name) {
return name ? Boot.config[name] : Boot.config;
},
/**
* Set the configuration.
* @param {Object} config The config object to override the default values.
* @return {Ext.Boot} this
*/
setConfig: function (name, value) {
if (typeof name === 'string') {
Boot.config[name] = value;
} else {
for (var s in name) {
Boot.setConfig(s, name[s]);
}
}
return Boot;
},
getHead: function () {
return Boot.docHead ||
(Boot.docHead = doc.head ||
doc.getElementsByTagName('head')[0]);
},
create: function (url, key, cfg) {
var config = cfg || {};
config.url = url;
config.key = key;
return Boot.scripts[key] = new Entry(config);
},
getEntry: function (url, cfg) {
var key = Boot.canonicalUrl(url),
entry = Boot.scripts[key];
if (!entry) {
entry = Boot.create(url, key, cfg);
}
return entry;
},
registerContent: function (url, type, content) {
var cfg = {
content: content,
loaded: true,
css: type === 'css'
};
return Boot.getEntry(url, cfg);
},
processRequest: function(request, sync) {
request.loadEntries(sync);
},
load: function (request) {
_debug("Boot.load called");
var request = new Request(request);
if (request.sync || Boot.syncMode) {
return Boot.loadSync(request);
}
// If there is a request in progress, we must
// queue this new request to be fired when the current request completes.
if (Boot.currentRequest) {
_debug("current active request, suspending this request");
// trigger assignment of entries now to ensure that overlapping
// entries with currently running requests will synchronize state
// with this pending one as they complete
request.getEntries();
Boot.suspendedQueue.push(request);
} else {
Boot.currentRequest = request;
Boot.processRequest(request, false);
}
return Boot;
},
loadSync: function (request) {
_debug("Boot.loadSync called");
var request = new Request(request);
Boot.syncMode++;
Boot.processRequest(request, true);
Boot.syncMode--;
return Boot;
},
loadBasePrefix: function(request) {
request = new Request(request);
request.prependBaseUrl = true;
return Boot.load(request);
},
loadSyncBasePrefix: function(request) {
request = new Request(request);
request.prependBaseUrl = true;
return Boot.loadSync(request);
},
requestComplete: function(request) {
var next;
if (Boot.currentRequest === request) {
Boot.currentRequest = null;
while(Boot.suspendedQueue.length > 0) {
next = Boot.suspendedQueue.shift();
if(!next.done) {
_debug("resuming suspended request");
Boot.load(next);
break;
}
}
}
if (!Boot.currentRequest && Boot.suspendedQueue.length == 0) {
Boot.fireListeners();
}
},
isLoading: function () {
return !Boot.currentRequest && Boot.suspendedQueue.length == 0;
},
fireListeners: function () {
var listener;
while (Boot.isLoading() && (listener = Boot.listeners.shift())) {
listener();
}
},
onBootReady: function (listener) {
if (!Boot.isLoading()) {
listener();
} else {
Boot.listeners.push(listener);
}
},
/**
* this is a helper function used by Ext.Loader to flush out
* 'uses' arrays for classes
*/
getPathsFromIndexes: function (indexMap, loadOrder) {
return Request.prototype.getPathsFromIndexes(indexMap, loadOrder);
},
createLoadOrderMap: function(loadOrder) {
return Request.prototype.createLoadOrderMap(loadOrder);
},
fetch: function(url, complete, scope, async) {
async = (async === undefined) ? !!complete : async;
var xhr = new XMLHttpRequest(),
result, status, content, exception = false,
readyStateChange = function () {
if (xhr && xhr.readyState == 4) {
status = (xhr.status === 1223) ? 204 :
(xhr.status === 0 && ((self.location || {}).protocol === 'file:' ||
(self.location || {}).protocol === 'ionp:')) ? 200 : xhr.status;
content = xhr.responseText;
result = {
content: content,
status: status,
exception: exception
};
if (complete) {
complete.call(scope, result);
}
xhr = null;
}
};
if (async) {
xhr.onreadystatechange = readyStateChange;
}
try {
_debug("fetching " + url + " " + (async ? "async" : "sync"));
xhr.open('GET', url, async);
xhr.send(null);
} catch (err) {
exception = err;
readyStateChange();
return result;
}
if (!async) {
readyStateChange();
}
return result;
},
notifyAll: function(entry) {
entry.notifyRequests();
}
};
function Request(cfg) {
//The request class encapsulates a series of Entry objects
//and provides notification around the completion of all Entries
//in this request.
if(cfg.$isRequest) {
return cfg;
}
var cfg = cfg.url ? cfg : {url: cfg},
url = cfg.url,
urls = url.charAt ? [ url ] : url,
charset = cfg.charset || Boot.config.charset;
_apply(cfg, {
urls: urls,
charset: charset
});
_apply(this, cfg);
};
Request.prototype = {
$isRequest: true,
createLoadOrderMap: function (loadOrder) {
var len = loadOrder.length,
loadOrderMap = {},
i, element;
for (i = 0; i < len; i++) {
element = loadOrder[i];
loadOrderMap[element.path] = element;
}
return loadOrderMap;
},
getLoadIndexes: function (index, indexMap, loadOrder, includeUses, skipLoaded) {
var item = loadOrder[index],
len, i, reqs, entry, stop, added, idx, ridx, url;
if (indexMap[index]) {
// prevent cycles
return indexMap;
}
indexMap[index] = true;
stop = false;
while (!stop) {
added = false;
// iterate the requirements for each index and
// accumulate in the index map
for (idx in indexMap) {
if (indexMap.hasOwnProperty(idx)) {
item = loadOrder[idx];
if (!item) {
continue;
}
url = this.prepareUrl(item.path);
entry = Boot.getEntry(url);
if (!skipLoaded || !entry || !entry.done) {
reqs = item.requires;
if (includeUses && item.uses) {
reqs = reqs.concat(item.uses);
}
for (len = reqs.length, i = 0; i < len; i++) {
ridx = reqs[i];
// if we find a requirement that wasn't
// already in the index map,
// set the added flag to indicate we need to
// reprocess
if (!indexMap[ridx]) {
indexMap[ridx] = true;
added = true;
}
}
}
}
}
// if we made a pass through the index map and didn't add anything
// then we can stop
if (!added) {
stop = true;
}
}
return indexMap;
},
getPathsFromIndexes: function (indexMap, loadOrder) {
var indexes = [],
paths = [],
index, len, i;
for (index in indexMap) {
if (indexMap.hasOwnProperty(index) && indexMap[index]) {
indexes.push(index);
}
}
indexes.sort(function (a, b) {
return a - b;
});
// convert indexes back into load paths
for (len = indexes.length, i = 0; i < len; i++) {
paths.push(loadOrder[indexes[i]].path);
}
return paths;
},
expandUrl: function (url, indexMap, includeUses, skipLoaded) {
if (typeof url == 'string') {
url = [url];
}
var me = this,
loadOrder = me.loadOrder,
loadOrderMap = me.loadOrderMap;
if (loadOrder) {
loadOrderMap = loadOrderMap || me.createLoadOrderMap(loadOrder);
me.loadOrderMap = loadOrderMap;
indexMap = indexMap || {};
var len = url.length,
unmapped = [],
i, item;
for (i = 0; i < len; i++) {
item = loadOrderMap[url[i]];
if (item) {
me.getLoadIndexes(item.idx, indexMap, loadOrder, includeUses, skipLoaded);
} else {
unmapped.push(url[i]);
}
}
return me.getPathsFromIndexes(indexMap, loadOrder).concat(unmapped);
}
return url;
},
expandUrls: function (urls, includeUses) {
if (typeof urls == "string") {
urls = [urls];
}
var expanded = [],
expandMap = {},
tmpExpanded,
len = urls.length,
i, t, tlen, tUrl;
for (i = 0; i < len; i++) {
tmpExpanded = this.expandUrl(urls[i], {}, includeUses, true);
for (t = 0, tlen = tmpExpanded.length; t < tlen; t++) {
tUrl = tmpExpanded[t];
if (!expandMap[tUrl]) {
expandMap[tUrl] = true;
expanded.push(tUrl);
}
}