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tvheadend/vendor/ext-3.4.1/docs/source/UpdateManager.html
Adam Sutton bafcfff42d webui: restructure webui/extjs source files 
I want to keep the 3rd-party packages away from the main source
where possible.
2013-06-03 17:11:01 +01:00

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<!DOCTYPE html>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>The source code</title>
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<pre class="prettyprint lang-js"><span id='Ext-Updater-method-constructor'><span id='Ext-Updater'>/**
</span></span> * @class Ext.Updater
* @extends Ext.util.Observable
* Provides AJAX-style update capabilities for Element objects. Updater can be used to {@link #update}
* an {@link Ext.Element} once, or you can use {@link #startAutoRefresh} to set up an auto-updating
* {@link Ext.Element Element} on a specific interval.&lt;br&gt;&lt;br&gt;
* Usage:&lt;br&gt;
* &lt;pre&gt;&lt;code&gt;
* var el = Ext.get(&quot;foo&quot;); // Get Ext.Element object
* var mgr = el.getUpdater();
* mgr.update({
url: &quot;http://myserver.com/index.php&quot;,
params: {
param1: &quot;foo&quot;,
param2: &quot;bar&quot;
}
* });
* ...
* mgr.formUpdate(&quot;myFormId&quot;, &quot;http://myserver.com/index.php&quot;);
* &lt;br&gt;
* // or directly (returns the same Updater instance)
* var mgr = new Ext.Updater(&quot;myElementId&quot;);
* mgr.startAutoRefresh(60, &quot;http://myserver.com/index.php&quot;);
* mgr.on(&quot;update&quot;, myFcnNeedsToKnow);
* &lt;br&gt;
* // short handed call directly from the element object
* Ext.get(&quot;foo&quot;).load({
url: &quot;bar.php&quot;,
scripts: true,
params: &quot;param1=foo&amp;amp;param2=bar&quot;,
text: &quot;Loading Foo...&quot;
* });
* &lt;/code&gt;&lt;/pre&gt;
* @constructor
* Create new Updater directly.
* @param {Mixed} el The element to update
* @param {Boolean} forceNew (optional) By default the constructor checks to see if the passed element already
* has an Updater and if it does it returns the same instance. This will skip that check (useful for extending this class).
*/
Ext.UpdateManager = Ext.Updater = Ext.extend(Ext.util.Observable,
function() {
var BEFOREUPDATE = &quot;beforeupdate&quot;,
UPDATE = &quot;update&quot;,
FAILURE = &quot;failure&quot;;
// private
function processSuccess(response){
var me = this;
me.transaction = null;
if (response.argument.form &amp;&amp; response.argument.reset) {
try { // put in try/catch since some older FF releases had problems with this
response.argument.form.reset();
} catch(e){}
}
if (me.loadScripts) {
me.renderer.render(me.el, response, me,
updateComplete.createDelegate(me, [response]));
} else {
me.renderer.render(me.el, response, me);
updateComplete.call(me, response);
}
}
// private
function updateComplete(response, type, success){
this.fireEvent(type || UPDATE, this.el, response);
if(Ext.isFunction(response.argument.callback)){
response.argument.callback.call(response.argument.scope, this.el, Ext.isEmpty(success) ? true : false, response, response.argument.options);
}
}
// private
function processFailure(response){
updateComplete.call(this, response, FAILURE, !!(this.transaction = null));
}
return {
constructor: function(el, forceNew){
var me = this;
el = Ext.get(el);
if(!forceNew &amp;&amp; el.updateManager){
return el.updateManager;
}
<span id='Ext-Updater-property-el'> /**
</span> * The Element object
* @type Ext.Element
*/
me.el = el;
<span id='Ext-Updater-property-defaultUrl'> /**
</span> * Cached url to use for refreshes. Overwritten every time update() is called unless &quot;discardUrl&quot; param is set to true.
* @type String
*/
me.defaultUrl = null;
me.addEvents(
<span id='Ext-Updater-event-beforeupdate'> /**
</span> * @event beforeupdate
* Fired before an update is made, return false from your handler and the update is cancelled.
* @param {Ext.Element} el
* @param {String/Object/Function} url
* @param {String/Object} params
*/
BEFOREUPDATE,
<span id='Ext-Updater-event-update'> /**
</span> * @event update
* Fired after successful update is made.
* @param {Ext.Element} el
* @param {Object} oResponseObject The response Object
*/
UPDATE,
<span id='Ext-Updater-event-failure'> /**
</span> * @event failure
* Fired on update failure.
* @param {Ext.Element} el
* @param {Object} oResponseObject The response Object
*/
FAILURE
);
Ext.apply(me, Ext.Updater.defaults);
<span id='Ext-Updater-property-sslBlankUrl'> /**
</span> * Blank page URL to use with SSL file uploads (defaults to {@link Ext.Updater.defaults#sslBlankUrl}).
* @property sslBlankUrl
* @type String
*/
<span id='Ext-Updater-property-disableCaching'> /**
</span> * Whether to append unique parameter on get request to disable caching (defaults to {@link Ext.Updater.defaults#disableCaching}).
* @property disableCaching
* @type Boolean
*/
<span id='Ext-Updater-property-indicatorText'> /**
</span> * Text for loading indicator (defaults to {@link Ext.Updater.defaults#indicatorText}).
* @property indicatorText
* @type String
*/
<span id='Ext-Updater-property-showLoadIndicator'> /**
</span> * Whether to show indicatorText when loading (defaults to {@link Ext.Updater.defaults#showLoadIndicator}).
* @property showLoadIndicator
* @type String
*/
<span id='Ext-Updater-property-timeout'> /**
</span> * Timeout for requests or form posts in seconds (defaults to {@link Ext.Updater.defaults#timeout}).
* @property timeout
* @type Number
*/
<span id='Ext-Updater-property-loadScripts'> /**
</span> * True to process scripts in the output (defaults to {@link Ext.Updater.defaults#loadScripts}).
* @property loadScripts
* @type Boolean
*/
<span id='Ext-Updater-property-transaction'> /**
</span> * Transaction object of the current executing transaction, or null if there is no active transaction.
*/
me.transaction = null;
<span id='Ext-Updater-property-refreshDelegate'> /**
</span> * Delegate for refresh() prebound to &quot;this&quot;, use myUpdater.refreshDelegate.createCallback(arg1, arg2) to bind arguments
* @type Function
*/
me.refreshDelegate = me.refresh.createDelegate(me);
<span id='Ext-Updater-property-updateDelegate'> /**
</span> * Delegate for update() prebound to &quot;this&quot;, use myUpdater.updateDelegate.createCallback(arg1, arg2) to bind arguments
* @type Function
*/
me.updateDelegate = me.update.createDelegate(me);
<span id='Ext-Updater-property-formUpdateDelegate'> /**
</span> * Delegate for formUpdate() prebound to &quot;this&quot;, use myUpdater.formUpdateDelegate.createCallback(arg1, arg2) to bind arguments
* @type Function
*/
me.formUpdateDelegate = (me.formUpdate || function(){}).createDelegate(me);
<span id='Ext-Updater-property-renderer'> /**
</span> * The renderer for this Updater (defaults to {@link Ext.Updater.BasicRenderer}).
*/
me.renderer = me.renderer || me.getDefaultRenderer();
Ext.Updater.superclass.constructor.call(me);
},
<span id='Ext-Updater-method-setRenderer'> /**
</span> * Sets the content renderer for this Updater. See {@link Ext.Updater.BasicRenderer#render} for more details.
* @param {Object} renderer The object implementing the render() method
*/
setRenderer : function(renderer){
this.renderer = renderer;
},
<span id='Ext-Updater-method-getRenderer'> /**
</span> * Returns the current content renderer for this Updater. See {@link Ext.Updater.BasicRenderer#render} for more details.
* @return {Object}
*/
getRenderer : function(){
return this.renderer;
},
<span id='Ext-Updater-method-getDefaultRenderer'> /**
</span> * This is an overrideable method which returns a reference to a default
* renderer class if none is specified when creating the Ext.Updater.
* Defaults to {@link Ext.Updater.BasicRenderer}
*/
getDefaultRenderer: function() {
return new Ext.Updater.BasicRenderer();
},
<span id='Ext-Updater-method-setDefaultUrl'> /**
</span> * Sets the default URL used for updates.
* @param {String/Function} defaultUrl The url or a function to call to get the url
*/
setDefaultUrl : function(defaultUrl){
this.defaultUrl = defaultUrl;
},
<span id='Ext-Updater-method-getEl'> /**
</span> * Get the Element this Updater is bound to
* @return {Ext.Element} The element
*/
getEl : function(){
return this.el;
},
<span id='Ext-Updater-method-update'> /**
</span> * Performs an &lt;b&gt;asynchronous&lt;/b&gt; request, updating this element with the response.
* If params are specified it uses POST, otherwise it uses GET.&lt;br&gt;&lt;br&gt;
* &lt;b&gt;Note:&lt;/b&gt; Due to the asynchronous nature of remote server requests, the Element
* will not have been fully updated when the function returns. To post-process the returned
* data, use the callback option, or an &lt;b&gt;&lt;code&gt;update&lt;/code&gt;&lt;/b&gt; event handler.
* @param {Object} options A config object containing any of the following options:&lt;ul&gt;
* &lt;li&gt;url : &lt;b&gt;String/Function&lt;/b&gt;&lt;p class=&quot;sub-desc&quot;&gt;The URL to request or a function which
* &lt;i&gt;returns&lt;/i&gt; the URL (defaults to the value of {@link Ext.Ajax#url} if not specified).&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;method : &lt;b&gt;String&lt;/b&gt;&lt;p class=&quot;sub-desc&quot;&gt;The HTTP method to
* use. Defaults to POST if the &lt;code&gt;params&lt;/code&gt; argument is present, otherwise GET.&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;params : &lt;b&gt;String/Object/Function&lt;/b&gt;&lt;p class=&quot;sub-desc&quot;&gt;The
* parameters to pass to the server (defaults to none). These may be specified as a url-encoded
* string, or as an object containing properties which represent parameters,
* or as a function, which returns such an object.&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;scripts : &lt;b&gt;Boolean&lt;/b&gt;&lt;p class=&quot;sub-desc&quot;&gt;If &lt;code&gt;true&lt;/code&gt;
* any &amp;lt;script&amp;gt; tags embedded in the response text will be extracted
* and executed (defaults to {@link Ext.Updater.defaults#loadScripts}). If this option is specified,
* the callback will be called &lt;i&gt;after&lt;/i&gt; the execution of the scripts.&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;callback : &lt;b&gt;Function&lt;/b&gt;&lt;p class=&quot;sub-desc&quot;&gt;A function to
* be called when the response from the server arrives. The following
* parameters are passed:&lt;ul&gt;
* &lt;li&gt;&lt;b&gt;el&lt;/b&gt; : Ext.Element&lt;p class=&quot;sub-desc&quot;&gt;The Element being updated.&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;&lt;b&gt;success&lt;/b&gt; : Boolean&lt;p class=&quot;sub-desc&quot;&gt;True for success, false for failure.&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;&lt;b&gt;response&lt;/b&gt; : XMLHttpRequest&lt;p class=&quot;sub-desc&quot;&gt;The XMLHttpRequest which processed the update.&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;&lt;b&gt;options&lt;/b&gt; : Object&lt;p class=&quot;sub-desc&quot;&gt;The config object passed to the update call.&lt;/p&gt;&lt;/li&gt;&lt;/ul&gt;
* &lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;scope : &lt;b&gt;Object&lt;/b&gt;&lt;p class=&quot;sub-desc&quot;&gt;The scope in which
* to execute the callback (The callback's &lt;code&gt;this&lt;/code&gt; reference.) If the
* &lt;code&gt;params&lt;/code&gt; argument is a function, this scope is used for that function also.&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;discardUrl : &lt;b&gt;Boolean&lt;/b&gt;&lt;p class=&quot;sub-desc&quot;&gt;By default, the URL of this request becomes
* the default URL for this Updater object, and will be subsequently used in {@link #refresh}
* calls. To bypass this behavior, pass &lt;code&gt;discardUrl:true&lt;/code&gt; (defaults to false).&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;timeout : &lt;b&gt;Number&lt;/b&gt;&lt;p class=&quot;sub-desc&quot;&gt;The number of seconds to wait for a response before
* timing out (defaults to {@link Ext.Updater.defaults#timeout}).&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;text : &lt;b&gt;String&lt;/b&gt;&lt;p class=&quot;sub-desc&quot;&gt;The text to use as the innerHTML of the
* {@link Ext.Updater.defaults#indicatorText} div (defaults to 'Loading...'). To replace the entire div, not
* just the text, override {@link Ext.Updater.defaults#indicatorText} directly.&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;nocache : &lt;b&gt;Boolean&lt;/b&gt;&lt;p class=&quot;sub-desc&quot;&gt;Only needed for GET
* requests, this option causes an extra, auto-generated parameter to be appended to the request
* to defeat caching (defaults to {@link Ext.Updater.defaults#disableCaching}).&lt;/p&gt;&lt;/li&gt;&lt;/ul&gt;
* &lt;p&gt;
* For example:
&lt;pre&gt;&lt;code&gt;
um.update({
url: &quot;your-url.php&quot;,
params: {param1: &quot;foo&quot;, param2: &quot;bar&quot;}, // or a URL encoded string
callback: yourFunction,
scope: yourObject, //(optional scope)
discardUrl: true,
nocache: true,
text: &quot;Loading...&quot;,
timeout: 60,
scripts: false // Save time by avoiding RegExp execution.
});
&lt;/code&gt;&lt;/pre&gt;
*/
update : function(url, params, callback, discardUrl){
var me = this,
cfg,
callerScope;
if(me.fireEvent(BEFOREUPDATE, me.el, url, params) !== false){
if(Ext.isObject(url)){ // must be config object
cfg = url;
url = cfg.url;
params = params || cfg.params;
callback = callback || cfg.callback;
discardUrl = discardUrl || cfg.discardUrl;
callerScope = cfg.scope;
if(!Ext.isEmpty(cfg.nocache)){me.disableCaching = cfg.nocache;};
if(!Ext.isEmpty(cfg.text)){me.indicatorText = '&lt;div class=&quot;loading-indicator&quot;&gt;'+cfg.text+&quot;&lt;/div&gt;&quot;;};
if(!Ext.isEmpty(cfg.scripts)){me.loadScripts = cfg.scripts;};
if(!Ext.isEmpty(cfg.timeout)){me.timeout = cfg.timeout;};
}
me.showLoading();
if(!discardUrl){
me.defaultUrl = url;
}
if(Ext.isFunction(url)){
url = url.call(me);
}
var o = Ext.apply({}, {
url : url,
params: (Ext.isFunction(params) &amp;&amp; callerScope) ? params.createDelegate(callerScope) : params,
success: processSuccess,
failure: processFailure,
scope: me,
callback: undefined,
timeout: (me.timeout*1000),
disableCaching: me.disableCaching,
argument: {
&quot;options&quot;: cfg,
&quot;url&quot;: url,
&quot;form&quot;: null,
&quot;callback&quot;: callback,
&quot;scope&quot;: callerScope || window,
&quot;params&quot;: params
}
}, cfg);
me.transaction = Ext.Ajax.request(o);
}
},
<span id='Ext-Updater-method-formUpdate'> /**
</span> * &lt;p&gt;Performs an asynchronous form post, updating this element with the response. If the form has the attribute
* enctype=&quot;&lt;a href=&quot;http://www.faqs.org/rfcs/rfc2388.html&quot;&gt;multipart/form-data&lt;/a&gt;&quot;, it assumes it's a file upload.
* Uses this.sslBlankUrl for SSL file uploads to prevent IE security warning.&lt;/p&gt;
* &lt;p&gt;File uploads are not performed using normal &quot;Ajax&quot; techniques, that is they are &lt;b&gt;not&lt;/b&gt;
* performed using XMLHttpRequests. Instead the form is submitted in the standard manner with the
* DOM &lt;code&gt;&amp;lt;form&gt;&lt;/code&gt; element temporarily modified to have its
* &lt;a href=&quot;http://www.w3.org/TR/REC-html40/present/frames.html#adef-target&quot;&gt;target&lt;/a&gt; set to refer
* to a dynamically generated, hidden &lt;code&gt;&amp;lt;iframe&gt;&lt;/code&gt; which is inserted into the document
* but removed after the return data has been gathered.&lt;/p&gt;
* &lt;p&gt;Be aware that file upload packets, sent with the content type &lt;a href=&quot;http://www.faqs.org/rfcs/rfc2388.html&quot;&gt;multipart/form-data&lt;/a&gt;
* and some server technologies (notably JEE) may require some custom processing in order to
* retrieve parameter names and parameter values from the packet content.&lt;/p&gt;
* @param {String/HTMLElement} form The form Id or form element
* @param {String} url (optional) The url to pass the form to. If omitted the action attribute on the form will be used.
* @param {Boolean} reset (optional) Whether to try to reset the form after the update
* @param {Function} callback (optional) Callback when transaction is complete. The following
* parameters are passed:&lt;ul&gt;
* &lt;li&gt;&lt;b&gt;el&lt;/b&gt; : Ext.Element&lt;p class=&quot;sub-desc&quot;&gt;The Element being updated.&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;&lt;b&gt;success&lt;/b&gt; : Boolean&lt;p class=&quot;sub-desc&quot;&gt;True for success, false for failure.&lt;/p&gt;&lt;/li&gt;
* &lt;li&gt;&lt;b&gt;response&lt;/b&gt; : XMLHttpRequest&lt;p class=&quot;sub-desc&quot;&gt;The XMLHttpRequest which processed the update.&lt;/p&gt;&lt;/li&gt;&lt;/ul&gt;
*/
formUpdate : function(form, url, reset, callback){
var me = this;
if(me.fireEvent(BEFOREUPDATE, me.el, form, url) !== false){
if(Ext.isFunction(url)){
url = url.call(me);
}
form = Ext.getDom(form);
me.transaction = Ext.Ajax.request({
form: form,
url:url,
success: processSuccess,
failure: processFailure,
scope: me,
timeout: (me.timeout*1000),
argument: {
&quot;url&quot;: url,
&quot;form&quot;: form,
&quot;callback&quot;: callback,
&quot;reset&quot;: reset
}
});
me.showLoading.defer(1, me);
}
},
<span id='Ext-Updater-method-startAutoRefresh'> /**
</span> * Set this element to auto refresh. Can be canceled by calling {@link #stopAutoRefresh}.
* @param {Number} interval How often to update (in seconds).
* @param {String/Object/Function} url (optional) The url for this request, a config object in the same format
* supported by {@link #load}, or a function to call to get the url (defaults to the last used url). Note that while
* the url used in a load call can be reused by this method, other load config options will not be reused and must be
* sepcified as part of a config object passed as this paramter if needed.
* @param {String/Object} params (optional) The parameters to pass as either a url encoded string
* &quot;&amp;param1=1&amp;param2=2&quot; or as an object {param1: 1, param2: 2}
* @param {Function} callback (optional) Callback when transaction is complete - called with signature (oElement, bSuccess)
* @param {Boolean} refreshNow (optional) Whether to execute the refresh now, or wait the interval
*/
startAutoRefresh : function(interval, url, params, callback, refreshNow){
var me = this;
if(refreshNow){
me.update(url || me.defaultUrl, params, callback, true);
}
if(me.autoRefreshProcId){
clearInterval(me.autoRefreshProcId);
}
me.autoRefreshProcId = setInterval(me.update.createDelegate(me, [url || me.defaultUrl, params, callback, true]), interval * 1000);
},
<span id='Ext-Updater-method-stopAutoRefresh'> /**
</span> * Stop auto refresh on this element.
*/
stopAutoRefresh : function(){
if(this.autoRefreshProcId){
clearInterval(this.autoRefreshProcId);
delete this.autoRefreshProcId;
}
},
<span id='Ext-Updater-method-isAutoRefreshing'> /**
</span> * Returns true if the Updater is currently set to auto refresh its content (see {@link #startAutoRefresh}), otherwise false.
*/
isAutoRefreshing : function(){
return !!this.autoRefreshProcId;
},
<span id='Ext-Updater-method-showLoading'> /**
</span> * Display the element's &quot;loading&quot; state. By default, the element is updated with {@link #indicatorText}. This
* method may be overridden to perform a custom action while this Updater is actively updating its contents.
*/
showLoading : function(){
if(this.showLoadIndicator){
this.el.dom.innerHTML = this.indicatorText;
}
},
<span id='Ext-Updater-method-abort'> /**
</span> * Aborts the currently executing transaction, if any.
*/
abort : function(){
if(this.transaction){
Ext.Ajax.abort(this.transaction);
}
},
<span id='Ext-Updater-method-isUpdating'> /**
</span> * Returns true if an update is in progress, otherwise false.
* @return {Boolean}
*/
isUpdating : function(){
return this.transaction ? Ext.Ajax.isLoading(this.transaction) : false;
},
<span id='Ext-Updater-method-refresh'> /**
</span> * Refresh the element with the last used url or defaultUrl. If there is no url, it returns immediately
* @param {Function} callback (optional) Callback when transaction is complete - called with signature (oElement, bSuccess)
*/
refresh : function(callback){
if(this.defaultUrl){
this.update(this.defaultUrl, null, callback, true);
}
}
};
}());
<span id='Ext-Updater-defaults'>/**
</span> * @class Ext.Updater.defaults
* The defaults collection enables customizing the default properties of Updater
*/
Ext.Updater.defaults = {
<span id='Ext-Updater-defaults-property-timeout'> /**
</span> * Timeout for requests or form posts in seconds (defaults to 30 seconds).
* @type Number
*/
timeout : 30,
<span id='Ext-Updater-defaults-property-disableCaching'> /**
</span> * True to append a unique parameter to GET requests to disable caching (defaults to false).
* @type Boolean
*/
disableCaching : false,
<span id='Ext-Updater-defaults-property-showLoadIndicator'> /**
</span> * Whether or not to show {@link #indicatorText} during loading (defaults to true).
* @type Boolean
*/
showLoadIndicator : true,
<span id='Ext-Updater-defaults-property-indicatorText'> /**
</span> * Text for loading indicator (defaults to '&amp;lt;div class=&quot;loading-indicator&quot;&amp;gt;Loading...&amp;lt;/div&amp;gt;').
* @type String
*/
indicatorText : '&lt;div class=&quot;loading-indicator&quot;&gt;Loading...&lt;/div&gt;',
<span id='Ext-Updater-defaults-property-loadScripts'> /**
</span> * True to process scripts by default (defaults to false).
* @type Boolean
*/
loadScripts : false,
<span id='Ext-Updater-defaults-property-sslBlankUrl'> /**
</span> * Blank page URL to use with SSL file uploads (defaults to {@link Ext#SSL_SECURE_URL} if set, or &quot;javascript:false&quot;).
* @type String
*/
sslBlankUrl : Ext.SSL_SECURE_URL
};
<span id='Ext-Updater-static-method-updateElement'>/**
</span> * Static convenience method. &lt;b&gt;This method is deprecated in favor of el.load({url:'foo.php', ...})&lt;/b&gt;.
* Usage:
* &lt;pre&gt;&lt;code&gt;Ext.Updater.updateElement(&quot;my-div&quot;, &quot;stuff.php&quot;);&lt;/code&gt;&lt;/pre&gt;
* @param {Mixed} el The element to update
* @param {String} url The url
* @param {String/Object} params (optional) Url encoded param string or an object of name/value pairs
* @param {Object} options (optional) A config object with any of the Updater properties you want to set - for
* example: {disableCaching:true, indicatorText: &quot;Loading data...&quot;}
* @static
* @deprecated
* @member Ext.Updater
*/
Ext.Updater.updateElement = function(el, url, params, options){
var um = Ext.get(el).getUpdater();
Ext.apply(um, options);
um.update(url, params, options ? options.callback : null);
};
<span id='Ext-Updater-BasicRenderer'>/**
</span> * @class Ext.Updater.BasicRenderer
* &lt;p&gt;This class is a base class implementing a simple render method which updates an element using results from an Ajax request.&lt;/p&gt;
* &lt;p&gt;The BasicRenderer updates the element's innerHTML with the responseText. To perform a custom render (i.e. XML or JSON processing),
* create an object with a conforming {@link #render} method and pass it to setRenderer on the Updater.&lt;/p&gt;
*/
Ext.Updater.BasicRenderer = function(){};
Ext.Updater.BasicRenderer.prototype = {
<span id='Ext-Updater-BasicRenderer-method-render'> /**
</span> * This method is called when an Ajax response is received, and an Element needs updating.
* @param {Ext.Element} el The element being rendered
* @param {Object} xhr The XMLHttpRequest object
* @param {Updater} updateManager The calling update manager
* @param {Function} callback A callback that will need to be called if loadScripts is true on the Updater
*/
render : function(el, response, updateManager, callback){
el.update(response.responseText, updateManager.loadScripts, callback);
}
};</pre>
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