/*!
* Ext JS Library 3.4.0
* Copyright(c) 2006-2011 Sencha Inc.
* licensing@sencha.com
* http://www.sencha.com/license
*/
// for old browsers
window.undefined = window.undefined;
/**
* @class Ext
* Ext core utilities and functions.
* @singleton
*/
Ext = {
/**
* The version of the framework
* @type String
*/
version : '3.4.0',
versionDetail : {
major : 3,
minor : 4,
patch : 0
}
};
/**
* Copies all the properties of config to obj.
* @param {Object} obj The receiver of the properties
* @param {Object} config The source of the properties
* @param {Object} defaults A different object that will also be applied for default values
* @return {Object} returns obj
* @member Ext apply
*/
Ext.apply = function(o, c, defaults){
// no "this" reference for friendly out of scope calls
if(defaults){
Ext.apply(o, defaults);
}
if(o && c && typeof c == 'object'){
for(var p in c){
o[p] = c[p];
}
}
return o;
};
(function(){
var idSeed = 0,
toString = Object.prototype.toString,
ua = navigator.userAgent.toLowerCase(),
check = function(r){
return r.test(ua);
},
DOC = document,
docMode = DOC.documentMode,
isStrict = DOC.compatMode == "CSS1Compat",
isOpera = check(/opera/),
isChrome = check(/\bchrome\b/),
isWebKit = check(/webkit/),
isSafari = !isChrome && check(/safari/),
isSafari2 = isSafari && check(/applewebkit\/4/), // unique to Safari 2
isSafari3 = isSafari && check(/version\/3/),
isSafari4 = isSafari && check(/version\/4/),
isIE = !isOpera && check(/msie/),
isIE7 = isIE && (check(/msie 7/) || docMode == 7),
isIE8 = isIE && (check(/msie 8/) && docMode != 7),
isIE9 = isIE && check(/msie 9/),
isIE6 = isIE && !isIE7 && !isIE8 && !isIE9,
isGecko = !isWebKit && check(/gecko/),
isGecko2 = isGecko && check(/rv:1\.8/),
isGecko3 = isGecko && check(/rv:1\.9/),
isBorderBox = isIE && !isStrict,
isWindows = check(/windows|win32/),
isMac = check(/macintosh|mac os x/),
isAir = check(/adobeair/),
isLinux = check(/linux/),
isSecure = /^https/i.test(window.location.protocol);
// remove css image flicker
if(isIE6){
try{
DOC.execCommand("BackgroundImageCache", false, true);
}catch(e){}
}
Ext.apply(Ext, {
/**
* URL to a blank file used by Ext when in secure mode for iframe src and onReady src to prevent
* the IE insecure content warning ('about:blank', except for IE in secure mode, which is 'javascript:""').
* @type String
*/
SSL_SECURE_URL : isSecure && isIE ? 'javascript:""' : 'about:blank',
/**
* True if the browser is in strict (standards-compliant) mode, as opposed to quirks mode
* @type Boolean
*/
isStrict : isStrict,
/**
* True if the page is running over SSL
* @type Boolean
*/
isSecure : isSecure,
/**
* True when the document is fully initialized and ready for action
* @type Boolean
*/
isReady : false,
/**
* True if the {@link Ext.Fx} Class is available
* @type Boolean
* @property enableFx
*/
/**
* HIGHLY EXPERIMENTAL
* True to force css based border-box model override and turning off javascript based adjustments. This is a
* runtime configuration and must be set before onReady.
* @type Boolean
*/
enableForcedBoxModel : false,
/**
* True to automatically uncache orphaned Ext.Elements periodically (defaults to true)
* @type Boolean
*/
enableGarbageCollector : true,
/**
* True to automatically purge event listeners during garbageCollection (defaults to false).
* @type Boolean
*/
enableListenerCollection : false,
/**
* EXPERIMENTAL - True to cascade listener removal to child elements when an element is removed.
* Currently not optimized for performance.
* @type Boolean
*/
enableNestedListenerRemoval : false,
/**
* Indicates whether to use native browser parsing for JSON methods.
* This option is ignored if the browser does not support native JSON methods.
* Note: Native JSON methods will not work with objects that have functions.
* Also, property names must be quoted, otherwise the data will not parse. (Defaults to false)
* @type Boolean
*/
USE_NATIVE_JSON : false,
/**
* Copies all the properties of config to obj if they don't already exist.
* @param {Object} obj The receiver of the properties
* @param {Object} config The source of the properties
* @return {Object} returns obj
*/
applyIf : function(o, c){
if(o){
for(var p in c){
if(!Ext.isDefined(o[p])){
o[p] = c[p];
}
}
}
return o;
},
/**
* Generates unique ids. If the element already has an id, it is unchanged
* @param {Mixed} el (optional) The element to generate an id for
* @param {String} prefix (optional) Id prefix (defaults "ext-gen")
* @return {String} The generated Id.
*/
id : function(el, prefix){
el = Ext.getDom(el, true) || {};
if (!el.id) {
el.id = (prefix || "ext-gen") + (++idSeed);
}
return el.id;
},
/**
* Extends one class to create a subclass and optionally overrides members with the passed literal. This method
* also adds the function "override()" to the subclass that can be used to override members of the class.
* For example, to create a subclass of Ext GridPanel:
*
MyGridPanel = Ext.extend(Ext.grid.GridPanel, {
constructor: function(config) {
// Create configuration for this Grid.
var store = new Ext.data.Store({...});
var colModel = new Ext.grid.ColumnModel({...});
// Create a new config object containing our computed properties
// *plus* whatever was in the config parameter.
config = Ext.apply({
store: store,
colModel: colModel
}, config);
MyGridPanel.superclass.constructor.call(this, config);
// Your postprocessing here
},
yourMethod: function() {
// etc.
}
});
*
* This function also supports a 3-argument call in which the subclass's constructor is
* passed as an argument. In this form, the parameters are as follows:
*
* subclass : Function The subclass constructor.superclass : Function The constructor of class being extendedoverrides : Object A literal with members which are copied into the subclass's
* prototype, and are therefore shared among all instances of the new class.
*
* @param {Function} superclass The constructor of class being extended.
* @param {Object} overrides A literal with members which are copied into the subclass's
* prototype, and are therefore shared between all instances of the new class.
* This may contain a special member named constructor. This is used
* to define the constructor of the new class, and is returned. If this property is
* not specified, a constructor is generated and returned which just calls the
* superclass's constructor passing on its parameters.
* It is essential that you call the superclass constructor in any provided constructor. See example code.
* @return {Function} The subclass constructor from the overrides parameter, or a generated one if not provided.
*/
extend : function(){
// inline overrides
var io = function(o){
for(var m in o){
this[m] = o[m];
}
};
var oc = Object.prototype.constructor;
return function(sb, sp, overrides){
if(typeof sp == 'object'){
overrides = sp;
sp = sb;
sb = overrides.constructor != oc ? overrides.constructor : function(){sp.apply(this, arguments);};
}
var F = function(){},
sbp,
spp = sp.prototype;
F.prototype = spp;
sbp = sb.prototype = new F();
sbp.constructor=sb;
sb.superclass=spp;
if(spp.constructor == oc){
spp.constructor=sp;
}
sb.override = function(o){
Ext.override(sb, o);
};
sbp.superclass = sbp.supr = (function(){
return spp;
});
sbp.override = io;
Ext.override(sb, overrides);
sb.extend = function(o){return Ext.extend(sb, o);};
return sb;
};
}(),
/**
* Adds a list of functions to the prototype of an existing class, overwriting any existing methods with the same name.
* Usage:
Ext.override(MyClass, {
newMethod1: function(){
// etc.
},
newMethod2: function(foo){
// etc.
}
});
* @param {Object} origclass The class to override
* @param {Object} overrides The list of functions to add to origClass. This should be specified as an object literal
* containing one or more methods.
* @method override
*/
override : function(origclass, overrides){
if(overrides){
var p = origclass.prototype;
Ext.apply(p, overrides);
if(Ext.isIE && overrides.hasOwnProperty('toString')){
p.toString = overrides.toString;
}
}
},
/**
* Creates namespaces to be used for scoping variables and classes so that they are not global.
* Specifying the last node of a namespace implicitly creates all other nodes. Usage:
*
Ext.namespace('Company', 'Company.data');
Ext.namespace('Company.data'); // equivalent and preferable to above syntax
Company.Widget = function() { ... }
Company.data.CustomStore = function(config) { ... }
* @param {String} namespace1
* @param {String} namespace2
* @param {String} etc
* @return {Object} The namespace object. (If multiple arguments are passed, this will be the last namespace created)
* @method namespace
*/
namespace : function(){
var len1 = arguments.length,
i = 0,
len2,
j,
main,
ns,
sub,
current;
for(; i < len1; ++i) {
main = arguments[i];
ns = arguments[i].split('.');
current = window[ns[0]];
if (current === undefined) {
current = window[ns[0]] = {};
}
sub = ns.slice(1);
len2 = sub.length;
for(j = 0; j < len2; ++j) {
current = current[sub[j]] = current[sub[j]] || {};
}
}
return current;
},
/**
* Takes an object and converts it to an encoded URL. e.g. Ext.urlEncode({foo: 1, bar: 2}); would return "foo=1&bar=2". Optionally, property values can be arrays, instead of keys and the resulting string that's returned will contain a name/value pair for each array value.
* @param {Object} o
* @param {String} pre (optional) A prefix to add to the url encoded string
* @return {String}
*/
urlEncode : function(o, pre){
var empty,
buf = [],
e = encodeURIComponent;
Ext.iterate(o, function(key, item){
empty = Ext.isEmpty(item);
Ext.each(empty ? key : item, function(val){
buf.push('&', e(key), '=', (!Ext.isEmpty(val) && (val != key || !empty)) ? (Ext.isDate(val) ? Ext.encode(val).replace(/"/g, '') : e(val)) : '');
});
});
if(!pre){
buf.shift();
pre = '';
}
return pre + buf.join('');
},
/**
* Takes an encoded URL and and converts it to an object. Example:
Ext.urlDecode("foo=1&bar=2"); // returns {foo: "1", bar: "2"}
Ext.urlDecode("foo=1&bar=2&bar=3&bar=4", false); // returns {foo: "1", bar: ["2", "3", "4"]}
* @param {String} string
* @param {Boolean} overwrite (optional) Items of the same name will overwrite previous values instead of creating an an array (Defaults to false).
* @return {Object} A literal with members
*/
urlDecode : function(string, overwrite){
if(Ext.isEmpty(string)){
return {};
}
var obj = {},
pairs = string.split('&'),
d = decodeURIComponent,
name,
value;
Ext.each(pairs, function(pair) {
pair = pair.split('=');
name = d(pair[0]);
value = d(pair[1]);
obj[name] = overwrite || !obj[name] ? value :
[].concat(obj[name]).concat(value);
});
return obj;
},
/**
* Appends content to the query string of a URL, handling logic for whether to place
* a question mark or ampersand.
* @param {String} url The URL to append to.
* @param {String} s The content to append to the URL.
* @return (String) The resulting URL
*/
urlAppend : function(url, s){
if(!Ext.isEmpty(s)){
return url + (url.indexOf('?') === -1 ? '?' : '&') + s;
}
return url;
},
/**
* Converts any iterable (numeric indices and a length property) into a true array
* Don't use this on strings. IE doesn't support "abc"[0] which this implementation depends on.
* For strings, use this instead: "abc".match(/./g) => [a,b,c];
* @param {Iterable} the iterable object to be turned into a true Array.
* @return (Array) array
*/
toArray : function(){
return isIE ?
function(a, i, j, res){
res = [];
for(var x = 0, len = a.length; x < len; x++) {
res.push(a[x]);
}
return res.slice(i || 0, j || res.length);
} :
function(a, i, j){
return Array.prototype.slice.call(a, i || 0, j || a.length);
};
}(),
isIterable : function(v){
//check for array or arguments
if(Ext.isArray(v) || v.callee){
return true;
}
//check for node list type
if(/NodeList|HTMLCollection/.test(toString.call(v))){
return true;
}
//NodeList has an item and length property
//IXMLDOMNodeList has nextNode method, needs to be checked first.
return ((typeof v.nextNode != 'undefined' || v.item) && Ext.isNumber(v.length));
},
/**
* Iterates an array calling the supplied function.
* @param {Array/NodeList/Mixed} array The array to be iterated. If this
* argument is not really an array, the supplied function is called once.
* @param {Function} fn The function to be called with each item. If the
* supplied function returns false, iteration stops and this method returns
* the current index. This function is called with
* the following arguments:
*
* item : Mixed
* The item at the current index
* in the passed arrayindex : Number
* The current index within the arrayallItems : Array
* The array passed as the first
* argument to Ext.each.
* @param {Object} scope The scope (this reference) in which the specified function is executed.
* Defaults to the item at the current index
* within the passed array.
* @return See description for the fn parameter.
*/
each : function(array, fn, scope){
if(Ext.isEmpty(array, true)){
return;
}
if(!Ext.isIterable(array) || Ext.isPrimitive(array)){
array = [array];
}
for(var i = 0, len = array.length; i < len; i++){
if(fn.call(scope || array[i], array[i], i, array) === false){
return i;
};
}
},
/**
* Iterates either the elements in an array, or each of the properties in an object.
* Note: If you are only iterating arrays, it is better to call {@link #each}.
* @param {Object/Array} object The object or array to be iterated
* @param {Function} fn The function to be called for each iteration.
* The iteration will stop if the supplied function returns false, or
* all array elements / object properties have been covered. The signature
* varies depending on the type of object being interated:
*
* - Arrays : (Object item, Number index, Array allItems)
*
* When iterating an array, the supplied function is called with each item.
* - Objects : (String key, Object value, Object)
*
* When iterating an object, the supplied function is called with each key-value pair in
* the object, and the iterated object
*
* @param {Object} scope The scope (this reference) in which the specified function is executed. Defaults to
* the object being iterated.
*/
iterate : function(obj, fn, scope){
if(Ext.isEmpty(obj)){
return;
}
if(Ext.isIterable(obj)){
Ext.each(obj, fn, scope);
return;
}else if(typeof obj == 'object'){
for(var prop in obj){
if(obj.hasOwnProperty(prop)){
if(fn.call(scope || obj, prop, obj[prop], obj) === false){
return;
};
}
}
}
},
/**
* Return the dom node for the passed String (id), dom node, or Ext.Element.
* Optional 'strict' flag is needed for IE since it can return 'name' and
* 'id' elements by using getElementById.
* Here are some examples:
*
// gets dom node based on id
var elDom = Ext.getDom('elId');
// gets dom node based on the dom node
var elDom1 = Ext.getDom(elDom);
// If we don't know if we are working with an
// Ext.Element or a dom node use Ext.getDom
function(el){
var dom = Ext.getDom(el);
// do something with the dom node
}
*
* Note: the dom node to be found actually needs to exist (be rendered, etc)
* when this method is called to be successful.
* @param {Mixed} el
* @return HTMLElement
*/
getDom : function(el, strict){
if(!el || !DOC){
return null;
}
if (el.dom){
return el.dom;
} else {
if (typeof el == 'string') {
var e = DOC.getElementById(el);
// IE returns elements with the 'name' and 'id' attribute.
// we do a strict check to return the element with only the id attribute
if (e && isIE && strict) {
if (el == e.getAttribute('id')) {
return e;
} else {
return null;
}
}
return e;
} else {
return el;
}
}
},
/**
* Returns the current document body as an {@link Ext.Element}.
* @return Ext.Element The document body
*/
getBody : function(){
return Ext.get(DOC.body || DOC.documentElement);
},
/**
* Returns the current document body as an {@link Ext.Element}.
* @return Ext.Element The document body
*/
getHead : function() {
var head;
return function() {
if (head == undefined) {
head = Ext.get(DOC.getElementsByTagName("head")[0]);
}
return head;
};
}(),
/**
* Removes a DOM node from the document.
*/
/**
* Removes this element from the document, removes all DOM event listeners, and deletes the cache reference.
* All DOM event listeners are removed from this element. If {@link Ext#enableNestedListenerRemoval} is
* true, then DOM event listeners are also removed from all child nodes. The body node
* will be ignored if passed in.
* @param {HTMLElement} node The node to remove
*/
removeNode : isIE && !isIE8 ? function(){
var d;
return function(n){
if(n && n.tagName != 'BODY'){
(Ext.enableNestedListenerRemoval) ? Ext.EventManager.purgeElement(n, true) : Ext.EventManager.removeAll(n);
d = d || DOC.createElement('div');
d.appendChild(n);
d.innerHTML = '';
delete Ext.elCache[n.id];
}
};
}() : function(n){
if(n && n.parentNode && n.tagName != 'BODY'){
(Ext.enableNestedListenerRemoval) ? Ext.EventManager.purgeElement(n, true) : Ext.EventManager.removeAll(n);
n.parentNode.removeChild(n);
delete Ext.elCache[n.id];
}
},
/**
* Returns true if the passed value is empty.
* The value is deemed to be empty if it is
* - null
* - undefined
* - an empty array
* - a zero length string (Unless the allowBlank parameter is true)
*
* @param {Mixed} value The value to test
* @param {Boolean} allowBlank (optional) true to allow empty strings (defaults to false)
* @return {Boolean}
*/
isEmpty : function(v, allowBlank){
return v === null || v === undefined || ((Ext.isArray(v) && !v.length)) || (!allowBlank ? v === '' : false);
},
/**
* Returns true if the passed value is a JavaScript array, otherwise false.
* @param {Mixed} value The value to test
* @return {Boolean}
*/
isArray : function(v){
return toString.apply(v) === '[object Array]';
},
/**
* Returns true if the passed object is a JavaScript date object, otherwise false.
* @param {Object} object The object to test
* @return {Boolean}
*/
isDate : function(v){
return toString.apply(v) === '[object Date]';
},
/**
* Returns true if the passed value is a JavaScript Object, otherwise false.
* @param {Mixed} value The value to test
* @return {Boolean}
*/
isObject : function(v){
return !!v && Object.prototype.toString.call(v) === '[object Object]';
},
/**
* Returns true if the passed value is a JavaScript 'primitive', a string, number or boolean.
* @param {Mixed} value The value to test
* @return {Boolean}
*/
isPrimitive : function(v){
return Ext.isString(v) || Ext.isNumber(v) || Ext.isBoolean(v);
},
/**
* Returns true if the passed value is a JavaScript Function, otherwise false.
* @param {Mixed} value The value to test
* @return {Boolean}
*/
isFunction : function(v){
return toString.apply(v) === '[object Function]';
},
/**
* Returns true if the passed value is a number. Returns false for non-finite numbers.
* @param {Mixed} value The value to test
* @return {Boolean}
*/
isNumber : function(v){
return typeof v === 'number' && isFinite(v);
},
/**
* Returns true if the passed value is a string.
* @param {Mixed} value The value to test
* @return {Boolean}
*/
isString : function(v){
return typeof v === 'string';
},
/**
* Returns true if the passed value is a boolean.
* @param {Mixed} value The value to test
* @return {Boolean}
*/
isBoolean : function(v){
return typeof v === 'boolean';
},
/**
* Returns true if the passed value is an HTMLElement
* @param {Mixed} value The value to test
* @return {Boolean}
*/
isElement : function(v) {
return v ? !!v.tagName : false;
},
/**
* Returns true if the passed value is not undefined.
* @param {Mixed} value The value to test
* @return {Boolean}
*/
isDefined : function(v){
return typeof v !== 'undefined';
},
/**
* True if the detected browser is Opera.
* @type Boolean
*/
isOpera : isOpera,
/**
* True if the detected browser uses WebKit.
* @type Boolean
*/
isWebKit : isWebKit,
/**
* True if the detected browser is Chrome.
* @type Boolean
*/
isChrome : isChrome,
/**
* True if the detected browser is Safari.
* @type Boolean
*/
isSafari : isSafari,
/**
* True if the detected browser is Safari 3.x.
* @type Boolean
*/
isSafari3 : isSafari3,
/**
* True if the detected browser is Safari 4.x.
* @type Boolean
*/
isSafari4 : isSafari4,
/**
* True if the detected browser is Safari 2.x.
* @type Boolean
*/
isSafari2 : isSafari2,
/**
* True if the detected browser is Internet Explorer.
* @type Boolean
*/
isIE : isIE,
/**
* True if the detected browser is Internet Explorer 6.x.
* @type Boolean
*/
isIE6 : isIE6,
/**
* True if the detected browser is Internet Explorer 7.x.
* @type Boolean
*/
isIE7 : isIE7,
/**
* True if the detected browser is Internet Explorer 8.x.
* @type Boolean
*/
isIE8 : isIE8,
/**
* True if the detected browser is Internet Explorer 9.x.
* @type Boolean
*/
isIE9 : isIE9,
/**
* True if the detected browser uses the Gecko layout engine (e.g. Mozilla, Firefox).
* @type Boolean
*/
isGecko : isGecko,
/**
* True if the detected browser uses a pre-Gecko 1.9 layout engine (e.g. Firefox 2.x).
* @type Boolean
*/
isGecko2 : isGecko2,
/**
* True if the detected browser uses a Gecko 1.9+ layout engine (e.g. Firefox 3.x).
* @type Boolean
*/
isGecko3 : isGecko3,
/**
* True if the detected browser is Internet Explorer running in non-strict mode.
* @type Boolean
*/
isBorderBox : isBorderBox,
/**
* True if the detected platform is Linux.
* @type Boolean
*/
isLinux : isLinux,
/**
* True if the detected platform is Windows.
* @type Boolean
*/
isWindows : isWindows,
/**
* True if the detected platform is Mac OS.
* @type Boolean
*/
isMac : isMac,
/**
* True if the detected platform is Adobe Air.
* @type Boolean
*/
isAir : isAir
});
/**
* Creates namespaces to be used for scoping variables and classes so that they are not global.
* Specifying the last node of a namespace implicitly creates all other nodes. Usage:
*
Ext.namespace('Company', 'Company.data');
Ext.namespace('Company.data'); // equivalent and preferable to above syntax
Company.Widget = function() { ... }
Company.data.CustomStore = function(config) { ... }
* @param {String} namespace1
* @param {String} namespace2
* @param {String} etc
* @return {Object} The namespace object. (If multiple arguments are passed, this will be the last namespace created)
* @method ns
*/
Ext.ns = Ext.namespace;
})();
Ext.ns('Ext.util', 'Ext.lib', 'Ext.data', 'Ext.supports');
Ext.elCache = {};
/**
* @class Function
* These functions are available on every Function object (any JavaScript function).
*/
Ext.apply(Function.prototype, {
/**
* Creates an interceptor function. The passed function is called before the original one. If it returns false,
* the original one is not called. The resulting function returns the results of the original function.
* The passed function is called with the parameters of the original function. Example usage:
*
var sayHi = function(name){
alert('Hi, ' + name);
}
sayHi('Fred'); // alerts "Hi, Fred"
// create a new function that validates input without
// directly modifying the original function:
var sayHiToFriend = sayHi.createInterceptor(function(name){
return name == 'Brian';
});
sayHiToFriend('Fred'); // no alert
sayHiToFriend('Brian'); // alerts "Hi, Brian"
* @param {Function} fcn The function to call before the original
* @param {Object} scope (optional) The scope (this reference) in which the passed function is executed.
* If omitted, defaults to the scope in which the original function is called or the browser window.
* @return {Function} The new function
*/
createInterceptor : function(fcn, scope){
var method = this;
return !Ext.isFunction(fcn) ?
this :
function() {
var me = this,
args = arguments;
fcn.target = me;
fcn.method = method;
return (fcn.apply(scope || me || window, args) !== false) ?
method.apply(me || window, args) :
null;
};
},
/**
* Creates a callback that passes arguments[0], arguments[1], arguments[2], ...
* Call directly on any function. Example: myFunction.createCallback(arg1, arg2)
* Will create a function that is bound to those 2 args. If a specific scope is required in the
* callback, use {@link #createDelegate} instead. The function returned by createCallback always
* executes in the window scope.
* This method is required when you want to pass arguments to a callback function. If no arguments
* are needed, you can simply pass a reference to the function as a callback (e.g., callback: myFn).
* However, if you tried to pass a function with arguments (e.g., callback: myFn(arg1, arg2)) the function
* would simply execute immediately when the code is parsed. Example usage:
*
var sayHi = function(name){
alert('Hi, ' + name);
}
// clicking the button alerts "Hi, Fred"
new Ext.Button({
text: 'Say Hi',
renderTo: Ext.getBody(),
handler: sayHi.createCallback('Fred')
});
* @return {Function} The new function
*/
createCallback : function(/*args...*/){
// make args available, in function below
var args = arguments,
method = this;
return function() {
return method.apply(window, args);
};
},
/**
* Creates a delegate (callback) that sets the scope to obj.
* Call directly on any function. Example: this.myFunction.createDelegate(this, [arg1, arg2])
* Will create a function that is automatically scoped to obj so that the this variable inside the
* callback points to obj. Example usage:
*
var sayHi = function(name){
// Note this use of "this.text" here. This function expects to
// execute within a scope that contains a text property. In this
// example, the "this" variable is pointing to the btn object that
// was passed in createDelegate below.
alert('Hi, ' + name + '. You clicked the "' + this.text + '" button.');
}
var btn = new Ext.Button({
text: 'Say Hi',
renderTo: Ext.getBody()
});
// This callback will execute in the scope of the
// button instance. Clicking the button alerts
// "Hi, Fred. You clicked the "Say Hi" button."
btn.on('click', sayHi.createDelegate(btn, ['Fred']));
* @param {Object} scope (optional) The scope (this reference) in which the function is executed.
* If omitted, defaults to the browser window.
* @param {Array} args (optional) Overrides arguments for the call. (Defaults to the arguments passed by the caller)
* @param {Boolean/Number} appendArgs (optional) if True args are appended to call args instead of overriding,
* if a number the args are inserted at the specified position
* @return {Function} The new function
*/
createDelegate : function(obj, args, appendArgs){
var method = this;
return function() {
var callArgs = args || arguments;
if (appendArgs === true){
callArgs = Array.prototype.slice.call(arguments, 0);
callArgs = callArgs.concat(args);
}else if (Ext.isNumber(appendArgs)){
callArgs = Array.prototype.slice.call(arguments, 0); // copy arguments first
var applyArgs = [appendArgs, 0].concat(args); // create method call params
Array.prototype.splice.apply(callArgs, applyArgs); // splice them in
}
return method.apply(obj || window, callArgs);
};
},
/**
* Calls this function after the number of millseconds specified, optionally in a specific scope. Example usage:
*
var sayHi = function(name){
alert('Hi, ' + name);
}
// executes immediately:
sayHi('Fred');
// executes after 2 seconds:
sayHi.defer(2000, this, ['Fred']);
// this syntax is sometimes useful for deferring
// execution of an anonymous function:
(function(){
alert('Anonymous');
}).defer(100);
* @param {Number} millis The number of milliseconds for the setTimeout call (if less than or equal to 0 the function is executed immediately)
* @param {Object} scope (optional) The scope (this reference) in which the function is executed.
* If omitted, defaults to the browser window.
* @param {Array} args (optional) Overrides arguments for the call. (Defaults to the arguments passed by the caller)
* @param {Boolean/Number} appendArgs (optional) if True args are appended to call args instead of overriding,
* if a number the args are inserted at the specified position
* @return {Number} The timeout id that can be used with clearTimeout
*/
defer : function(millis, obj, args, appendArgs){
var fn = this.createDelegate(obj, args, appendArgs);
if(millis > 0){
return setTimeout(fn, millis);
}
fn();
return 0;
}
});
/**
* @class String
* These functions are available on every String object.
*/
Ext.applyIf(String, {
/**
* Allows you to define a tokenized string and pass an arbitrary number of arguments to replace the tokens. Each
* token must be unique, and must increment in the format {0}, {1}, etc. Example usage:
*
var cls = 'my-class', text = 'Some text';
var s = String.format('<div class="{0}">{1}</div>', cls, text);
// s now contains the string: '<div class="my-class">Some text</div>'
*
* @param {String} string The tokenized string to be formatted
* @param {String} value1 The value to replace token {0}
* @param {String} value2 Etc...
* @return {String} The formatted string
* @static
*/
format : function(format){
var args = Ext.toArray(arguments, 1);
return format.replace(/\{(\d+)\}/g, function(m, i){
return args[i];
});
}
});
/**
* @class Array
*/
Ext.applyIf(Array.prototype, {
/**
* Checks whether or not the specified object exists in the array.
* @param {Object} o The object to check for
* @param {Number} from (Optional) The index at which to begin the search
* @return {Number} The index of o in the array (or -1 if it is not found)
*/
indexOf : function(o, from){
var len = this.length;
from = from || 0;
from += (from < 0) ? len : 0;
for (; from < len; ++from){
if(this[from] === o){
return from;
}
}
return -1;
},
/**
* Removes the specified object from the array. If the object is not found nothing happens.
* @param {Object} o The object to remove
* @return {Array} this array
*/
remove : function(o){
var index = this.indexOf(o);
if(index != -1){
this.splice(index, 1);
}
return this;
}
});