/** * @class Ext */ Ext.ns("Ext.grid", "Ext.list", "Ext.dd", "Ext.tree", "Ext.form", "Ext.menu", "Ext.state", "Ext.layout", "Ext.app", "Ext.ux", "Ext.chart", "Ext.direct");
/** * Namespace alloted for extensions to the framework. * @property ux * @type Object */ Ext.apply(Ext, function(){ var E = Ext, idSeed = 0, scrollWidth = null; return {
/** * A reusable empty function * @property * @type Function */ emptyFn : function(){},
/** * URL to a 1x1 transparent gif image used by Ext to create inline icons with CSS background images. * In older versions of IE, this defaults to "http://extjs.com/s.gif" and you should change this to a URL on your server. * For other browsers it uses an inline data URL. * @type String */ BLANK_IMAGE_URL : Ext.isIE6 || Ext.isIE7 || Ext.isAir ? 'http:/' + '/extjs.com/s.gif' : 'data:image/gif;base64,R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==', extendX : function(supr, fn){ return Ext.extend(supr, fn(supr.prototype)); },
/** * Returns the current HTML document object as an {@link Ext.Element}. * @return Ext.Element The document */ getDoc : function(){ return Ext.get(document); },
/** * Utility method for validating that a value is numeric, returning the specified default value if it is not. * @param {Mixed} value Should be a number, but any type will be handled appropriately * @param {Number} defaultValue The value to return if the original value is non-numeric * @return {Number} Value, if numeric, else defaultValue */ num : function(v, defaultValue){ v = Number(Ext.isEmpty(v) || Ext.isArray(v) || Ext.isBoolean(v) || (Ext.isString(v) && v.trim().length == 0) ? NaN : v); return isNaN(v) ? defaultValue : v; },
/** *

Utility method for returning a default value if the passed value is empty.

*

The value is deemed to be empty if it is

* @param {Mixed} value The value to test * @param {Mixed} defaultValue The value to return if the original value is empty * @param {Boolean} allowBlank (optional) true to allow zero length strings to qualify as non-empty (defaults to false) * @return {Mixed} value, if non-empty, else defaultValue */ value : function(v, defaultValue, allowBlank){ return Ext.isEmpty(v, allowBlank) ? defaultValue : v; },
/** * Escapes the passed string for use in a regular expression * @param {String} str * @return {String} */ escapeRe : function(s) { return s.replace(/([-.*+?^${}()|[\]\/\\])/g, "\\$1"); }, sequence : function(o, name, fn, scope){ o[name] = o[name].createSequence(fn, scope); },
/** * Applies event listeners to elements by selectors when the document is ready. * The event name is specified with an @ suffix. *

Ext.addBehaviors({
    // add a listener for click on all anchors in element with id foo
    '#foo a@click' : function(e, t){
        // do something
    },
    
    // add the same listener to multiple selectors (separated by comma BEFORE the @)
    '#foo a, #bar span.some-class@mouseover' : function(){
        // do something
    }
});
         * 
* @param {Object} obj The list of behaviors to apply */ addBehaviors : function(o){ if(!Ext.isReady){ Ext.onReady(function(){ Ext.addBehaviors(o); }); } else { var cache = {}, // simple cache for applying multiple behaviors to same selector does query multiple times parts, b, s; for (b in o) { if ((parts = b.split('@'))[1]) { // for Object prototype breakers s = parts[0]; if(!cache[s]){ cache[s] = Ext.select(s); } cache[s].on(parts[1], o[b]); } } cache = null; } },
/** * Utility method for getting the width of the browser scrollbar. This can differ depending on * operating system settings, such as the theme or font size. * @param {Boolean} force (optional) true to force a recalculation of the value. * @return {Number} The width of the scrollbar. */ getScrollBarWidth: function(force){ if(!Ext.isReady){ return 0; } if(force === true || scrollWidth === null){ // Append our div, do our calculation and then remove it var div = Ext.getBody().createChild('
'), child = div.child('div', true); var w1 = child.offsetWidth; div.setStyle('overflow', (Ext.isWebKit || Ext.isGecko) ? 'auto' : 'scroll'); var w2 = child.offsetWidth; div.remove(); // Need to add 2 to ensure we leave enough space scrollWidth = w1 - w2 + 2; } return scrollWidth; }, // deprecated combine : function(){ var as = arguments, l = as.length, r = []; for(var i = 0; i < l; i++){ var a = as[i]; if(Ext.isArray(a)){ r = r.concat(a); }else if(a.length !== undefined && !a.substr){ r = r.concat(Array.prototype.slice.call(a, 0)); }else{ r.push(a); } } return r; },
/** * Copies a set of named properties fom the source object to the destination object. *

example:


ImageComponent = Ext.extend(Ext.BoxComponent, {
    initComponent: function() {
        this.autoEl = { tag: 'img' };
        MyComponent.superclass.initComponent.apply(this, arguments);
        this.initialBox = Ext.copyTo({}, this.initialConfig, 'x,y,width,height');
    }
});
         * 
* @param {Object} The destination object. * @param {Object} The source object. * @param {Array/String} Either an Array of property names, or a comma-delimited list * of property names to copy. * @return {Object} The modified object. */ copyTo : function(dest, source, names){ if(Ext.isString(names)){ names = names.split(/[,;\s]/); } Ext.each(names, function(name){ if(source.hasOwnProperty(name)){ dest[name] = source[name]; } }, this); return dest; },
/** * Attempts to destroy any objects passed to it by removing all event listeners, removing them from the * DOM (if applicable) and calling their destroy functions (if available). This method is primarily * intended for arguments of type {@link Ext.Element} and {@link Ext.Component}, but any subclass of * {@link Ext.util.Observable} can be passed in. Any number of elements and/or components can be * passed into this function in a single call as separate arguments. * @param {Mixed} arg1 An {@link Ext.Element}, {@link Ext.Component}, or an Array of either of these to destroy * @param {Mixed} arg2 (optional) * @param {Mixed} etc... (optional) */ destroy : function(){ Ext.each(arguments, function(arg){ if(arg){ if(Ext.isArray(arg)){ this.destroy.apply(this, arg); }else if(Ext.isFunction(arg.destroy)){ arg.destroy(); }else if(arg.dom){ arg.remove(); } } }, this); },
/** * Attempts to destroy and then remove a set of named properties of the passed object. * @param {Object} o The object (most likely a Component) who's properties you wish to destroy. * @param {Mixed} arg1 The name of the property to destroy and remove from the object. * @param {Mixed} etc... More property names to destroy and remove. */ destroyMembers : function(o, arg1, arg2, etc){ for(var i = 1, a = arguments, len = a.length; i < len; i++) { Ext.destroy(o[a[i]]); delete o[a[i]]; } },
/** * Creates a copy of the passed Array with falsy values removed. * @param {Array/NodeList} arr The Array from which to remove falsy values. * @return {Array} The new, compressed Array. */ clean : function(arr){ var ret = []; Ext.each(arr, function(v){ if(!!v){ ret.push(v); } }); return ret; },
/** * Creates a copy of the passed Array, filtered to contain only unique values. * @param {Array} arr The Array to filter * @return {Array} The new Array containing unique values. */ unique : function(arr){ var ret = [], collect = {}; Ext.each(arr, function(v) { if(!collect[v]){ ret.push(v); } collect[v] = true; }); return ret; },
/** * Recursively flattens into 1-d Array. Injects Arrays inline. * @param {Array} arr The array to flatten * @return {Array} The new, flattened array. */ flatten : function(arr){ var worker = []; function rFlatten(a) { Ext.each(a, function(v) { if(Ext.isArray(v)){ rFlatten(v); }else{ worker.push(v); } }); return worker; } return rFlatten(arr); },
/** * Returns the minimum value in the Array. * @param {Array|NodeList} arr The Array from which to select the minimum value. * @param {Function} comp (optional) a function to perform the comparision which determines minimization. * If omitted the "<" operator will be used. Note: gt = 1; eq = 0; lt = -1 * @return {Object} The minimum value in the Array. */ min : function(arr, comp){ var ret = arr[0]; comp = comp || function(a,b){ return a < b ? -1 : 1; }; Ext.each(arr, function(v) { ret = comp(ret, v) == -1 ? ret : v; }); return ret; },
/** * Returns the maximum value in the Array * @param {Array|NodeList} arr The Array from which to select the maximum value. * @param {Function} comp (optional) a function to perform the comparision which determines maximization. * If omitted the ">" operator will be used. Note: gt = 1; eq = 0; lt = -1 * @return {Object} The maximum value in the Array. */ max : function(arr, comp){ var ret = arr[0]; comp = comp || function(a,b){ return a > b ? 1 : -1; }; Ext.each(arr, function(v) { ret = comp(ret, v) == 1 ? ret : v; }); return ret; },
/** * Calculates the mean of the Array * @param {Array} arr The Array to calculate the mean value of. * @return {Number} The mean. */ mean : function(arr){ return arr.length > 0 ? Ext.sum(arr) / arr.length : undefined; },
/** * Calculates the sum of the Array * @param {Array} arr The Array to calculate the sum value of. * @return {Number} The sum. */ sum : function(arr){ var ret = 0; Ext.each(arr, function(v) { ret += v; }); return ret; },
/** * Partitions the set into two sets: a true set and a false set. * Example: * Example2: *

// Example 1:
Ext.partition([true, false, true, true, false]); // [[true, true, true], [false, false]]

// Example 2:
Ext.partition(
    Ext.query("p"),
    function(val){
        return val.className == "class1"
    }
);
// true are those paragraph elements with a className of "class1",
// false set are those that do not have that className.
         * 
* @param {Array|NodeList} arr The array to partition * @param {Function} truth (optional) a function to determine truth. If this is omitted the element * itself must be able to be evaluated for its truthfulness. * @return {Array} [true,false] */ partition : function(arr, truth){ var ret = [[],[]]; Ext.each(arr, function(v, i, a) { ret[ (truth && truth(v, i, a)) || (!truth && v) ? 0 : 1].push(v); }); return ret; },
/** * Invokes a method on each item in an Array. *

// Example:
Ext.invoke(Ext.query("p"), "getAttribute", "id");
// [el1.getAttribute("id"), el2.getAttribute("id"), ..., elN.getAttribute("id")]
         * 
* @param {Array|NodeList} arr The Array of items to invoke the method on. * @param {String} methodName The method name to invoke. * @param {Anything} ... Arguments to send into the method invocation. * @return {Array} The results of invoking the method on each item in the array. */ invoke : function(arr, methodName){ var ret = [], args = Array.prototype.slice.call(arguments, 2); Ext.each(arr, function(v,i) { if (v && Ext.isFunction(v[methodName])) { ret.push(v[methodName].apply(v, args)); } else { ret.push(undefined); } }); return ret; },
/** * Plucks the value of a property from each item in the Array *

// Example:
Ext.pluck(Ext.query("p"), "className"); // [el1.className, el2.className, ..., elN.className]
         * 
* @param {Array|NodeList} arr The Array of items to pluck the value from. * @param {String} prop The property name to pluck from each element. * @return {Array} The value from each item in the Array. */ pluck : function(arr, prop){ var ret = []; Ext.each(arr, function(v) { ret.push( v[prop] ); }); return ret; },
/** *

Zips N sets together.

*

// Example 1:
Ext.zip([1,2,3],[4,5,6]); // [[1,4],[2,5],[3,6]]
// Example 2:
Ext.zip(
    [ "+", "-", "+"],
    [  12,  10,  22],
    [  43,  15,  96],
    function(a, b, c){
        return "$" + a + "" + b + "." + c
    }
); // ["$+12.43", "$-10.15", "$+22.96"]
         * 
* @param {Arrays|NodeLists} arr This argument may be repeated. Array(s) to contribute values. * @param {Function} zipper (optional) The last item in the argument list. This will drive how the items are zipped together. * @return {Array} The zipped set. */ zip : function(){ var parts = Ext.partition(arguments, function( val ){ return !Ext.isFunction(val); }), arrs = parts[0], fn = parts[1][0], len = Ext.max(Ext.pluck(arrs, "length")), ret = []; for (var i = 0; i < len; i++) { ret[i] = []; if(fn){ ret[i] = fn.apply(fn, Ext.pluck(arrs, i)); }else{ for (var j = 0, aLen = arrs.length; j < aLen; j++){ ret[i].push( arrs[j][i] ); } } } return ret; },
/** * This is shorthand reference to {@link Ext.ComponentMgr#get}. * Looks up an existing {@link Ext.Component Component} by {@link Ext.Component#id id} * @param {String} id The component {@link Ext.Component#id id} * @return Ext.Component The Component, undefined if not found, or null if a * Class was found. */ getCmp : function(id){ return Ext.ComponentMgr.get(id); },
/** * By default, Ext intelligently decides whether floating elements should be shimmed. If you are using flash, * you may want to set this to true. * @type Boolean */ useShims: E.isIE6 || (E.isMac && E.isGecko2), // inpired by a similar function in mootools library
/** * Returns the type of object that is passed in. If the object passed in is null or undefined it * return false otherwise it returns one of the following values:
    *
  • string: If the object passed is a string
  • *
  • number: If the object passed is a number
  • *
  • boolean: If the object passed is a boolean value
  • *
  • date: If the object passed is a Date object
  • *
  • function: If the object passed is a function reference
  • *
  • object: If the object passed is an object
  • *
  • array: If the object passed is an array
  • *
  • regexp: If the object passed is a regular expression
  • *
  • element: If the object passed is a DOM Element
  • *
  • nodelist: If the object passed is a DOM NodeList
  • *
  • textnode: If the object passed is a DOM text node and contains something other than whitespace
  • *
  • whitespace: If the object passed is a DOM text node and contains only whitespace
  • *
* @param {Mixed} object * @return {String} */ type : function(o){ if(o === undefined || o === null){ return false; } if(o.htmlElement){ return 'element'; } var t = typeof o; if(t == 'object' && o.nodeName) { switch(o.nodeType) { case 1: return 'element'; case 3: return (/\S/).test(o.nodeValue) ? 'textnode' : 'whitespace'; } } if(t == 'object' || t == 'function') { switch(o.constructor) { case Array: return 'array'; case RegExp: return 'regexp'; case Date: return 'date'; } if(Ext.isNumber(o.length) && Ext.isFunction(o.item)) { return 'nodelist'; } } return t; }, intercept : function(o, name, fn, scope){ o[name] = o[name].createInterceptor(fn, scope); }, // internal callback : function(cb, scope, args, delay){ if(Ext.isFunction(cb)){ if(delay){ cb.defer(delay, scope, args || []); }else{ cb.apply(scope, args || []); } } } }; }());
/** * @class Function * These functions are available on every Function object (any JavaScript function). */ Ext.apply(Function.prototype, {
/** * Create a combined function call sequence of the original function + the passed function. * The resulting function returns the results of the original function. * The passed fcn is called with the parameters of the original function. Example usage: *

var sayHi = function(name){
    alert('Hi, ' + name);
}

sayHi('Fred'); // alerts "Hi, Fred"

var sayGoodbye = sayHi.createSequence(function(name){
    alert('Bye, ' + name);
});

sayGoodbye('Fred'); // both alerts show
* @param {Function} fcn The function to sequence * @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 */ createSequence : function(fcn, scope){ var method = this; return !Ext.isFunction(fcn) ? this : function(){ var retval = method.apply(this || window, arguments); fcn.apply(scope || this || window, arguments); return retval; }; } });
/** * @class String * These functions are available as static methods on the JavaScript String object. */ Ext.applyIf(String, {
/** * Escapes the passed string for ' and \ * @param {String} string The string to escape * @return {String} The escaped string * @static */ escape : function(string) { return string.replace(/('|\\)/g, "\\$1"); },
/** * Pads the left side of a string with a specified character. This is especially useful * for normalizing number and date strings. Example usage: *

var s = String.leftPad('123', 5, '0');
// s now contains the string: '00123'
     * 
* @param {String} string The original string * @param {Number} size The total length of the output string * @param {String} char (optional) The character with which to pad the original string (defaults to empty string " ") * @return {String} The padded string * @static */ leftPad : function (val, size, ch) { var result = String(val); if(!ch) { ch = " "; } while (result.length < size) { result = ch + result; } return result; } });
/** * Utility function that allows you to easily switch a string between two alternating values. The passed value * is compared to the current string, and if they are equal, the other value that was passed in is returned. If * they are already different, the first value passed in is returned. Note that this method returns the new value * but does not change the current string. *

// alternate sort directions
sort = sort.toggle('ASC', 'DESC');

// instead of conditional logic:
sort = (sort == 'ASC' ? 'DESC' : 'ASC');
* @param {String} value The value to compare to the current string * @param {String} other The new value to use if the string already equals the first value passed in * @return {String} The new value */ String.prototype.toggle = function(value, other){ return this == value ? other : value; };
/** * Trims whitespace from either end of a string, leaving spaces within the string intact. Example: *

var s = '  foo bar  ';
alert('-' + s + '-');         //alerts "- foo bar -"
alert('-' + s.trim() + '-');  //alerts "-foo bar-"
* @return {String} The trimmed string */ String.prototype.trim = function(){ var re = /^\s+|\s+$/g; return function(){ return this.replace(re, ""); }; }(); // here to prevent dependency on Date.js
/** Returns the number of milliseconds between this date and date @param {Date} date (optional) Defaults to now @return {Number} The diff in milliseconds @member Date getElapsed */ Date.prototype.getElapsed = function(date) { return Math.abs((date || new Date()).getTime()-this.getTime()); };
/** * @class Number */ Ext.applyIf(Number.prototype, {
/** * Checks whether or not the current number is within a desired range. If the number is already within the * range it is returned, otherwise the min or max value is returned depending on which side of the range is * exceeded. Note that this method returns the constrained value but does not change the current number. * @param {Number} min The minimum number in the range * @param {Number} max The maximum number in the range * @return {Number} The constrained value if outside the range, otherwise the current value */ constrain : function(min, max){ return Math.min(Math.max(this, min), max); } });