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define([
'jquery'
], function ($) {
var Utils = {};
Utils.Extend = function (ChildClass, SuperClass) {
var __hasProp = {}.hasOwnProperty;
function BaseConstructor () {
this.constructor = ChildClass;
}
for (var key in SuperClass) {
if (__hasProp.call(SuperClass, key)) {
ChildClass[key] = SuperClass[key];
}
}
BaseConstructor.prototype = SuperClass.prototype;
ChildClass.prototype = new BaseConstructor();
ChildClass.__super__ = SuperClass.prototype;
return ChildClass;
};
function getMethods (theClass) {
var proto = theClass.prototype;
var methods = [];
for (var methodName in proto) {
var m = proto[methodName];
if (typeof m !== 'function') {
continue;
}
if (methodName === 'constructor') {
continue;
}
methods.push(methodName);
}
return methods;
}
Utils.Decorate = function (SuperClass, DecoratorClass) {
var decoratedMethods = getMethods(DecoratorClass);
var superMethods = getMethods(SuperClass);
function DecoratedClass () {
var unshift = Array.prototype.unshift;
var argCount = DecoratorClass.prototype.constructor.length;
var calledConstructor = SuperClass.prototype.constructor;
if (argCount > 0) {
unshift.call(arguments, SuperClass.prototype.constructor);
calledConstructor = DecoratorClass.prototype.constructor;
}
calledConstructor.apply(this, arguments);
}
DecoratorClass.displayName = SuperClass.displayName;
function ctr () {
this.constructor = DecoratedClass;
}
DecoratedClass.prototype = new ctr();
for (var m = 0; m < superMethods.length; m++) {
var superMethod = superMethods[m];
DecoratedClass.prototype[superMethod] =
SuperClass.prototype[superMethod];
}
var calledMethod = function (methodName) {
// Stub out the original method if it's not decorating an actual method
var originalMethod = function () {};
if (methodName in DecoratedClass.prototype) {
originalMethod = DecoratedClass.prototype[methodName];
}
var decoratedMethod = DecoratorClass.prototype[methodName];
return function () {
var unshift = Array.prototype.unshift;
unshift.call(arguments, originalMethod);
return decoratedMethod.apply(this, arguments);
};
};
for (var d = 0; d < decoratedMethods.length; d++) {
var decoratedMethod = decoratedMethods[d];
DecoratedClass.prototype[decoratedMethod] = calledMethod(decoratedMethod);
}
return DecoratedClass;
};
var Observable = function () {
this.listeners = {};
};
Observable.prototype.on = function (event, callback) {
this.listeners = this.listeners || {};
if (event in this.listeners) {
this.listeners[event].push(callback);
} else {
this.listeners[event] = [callback];
}
};
Observable.prototype.trigger = function (event) {
var slice = Array.prototype.slice;
var params = slice.call(arguments, 1);
this.listeners = this.listeners || {};
// Params should always come in as an array
if (params == null) {
params = [];
}
// If there are no arguments to the event, use a temporary object
if (params.length === 0) {
params.push({});
}
// Set the `_type` of the first object to the event
params[0]._type = event;
if (event in this.listeners) {
this.invoke(this.listeners[event], slice.call(arguments, 1));
}
if ('*' in this.listeners) {
this.invoke(this.listeners['*'], arguments);
}
};
Observable.prototype.invoke = function (listeners, params) {
for (var i = 0, len = listeners.length; i < len; i++) {
listeners[i].apply(this, params);
}
};
Utils.Observable = Observable;
Utils.generateChars = function (length) {
var chars = '';
for (var i = 0; i < length; i++) {
var randomChar = Math.floor(Math.random() * 36);
chars += randomChar.toString(36);
}
return chars;
};
Utils.bind = function (func, context) {
return function () {
func.apply(context, arguments);
};
};
Utils._convertData = function (data) {
for (var originalKey in data) {
var keys = originalKey.split('-');
var dataLevel = data;
if (keys.length === 1) {
continue;
}
for (var k = 0; k < keys.length; k++) {
var key = keys[k];
// Lowercase the first letter
// By default, dash-separated becomes camelCase
key = key.substring(0, 1).toLowerCase() + key.substring(1);
if (!(key in dataLevel)) {
dataLevel[key] = {};
}
if (k == keys.length - 1) {
dataLevel[key] = data[originalKey];
}
dataLevel = dataLevel[key];
}
delete data[originalKey];
}
return data;
};
Utils.hasScroll = function (index, el) {
// Adapted from the function created by @ShadowScripter
// and adapted by @BillBarry on the Stack Exchange Code Review website.
// The original code can be found at
// http://codereview.stackexchange.com/q/13338
// and was designed to be used with the Sizzle selector engine.
var $el = $(el);
var overflowX = el.style.overflowX;
var overflowY = el.style.overflowY;
//Check both x and y declarations
if (overflowX === overflowY &&
(overflowY === 'hidden' || overflowY === 'visible')) {
return false;
}
if (overflowX === 'scroll' || overflowY === 'scroll') {
return true;
}
return ($el.innerHeight() < el.scrollHeight ||
$el.innerWidth() < el.scrollWidth);
};
Utils.escapeMarkup = function (markup) {
var replaceMap = {
'\\': '\',
'&': '&',
'<': '<',
'>': '>',
'"': '"',
'\'': ''',
'/': '/'
};
// Do not try to escape the markup if it's not a string
if (typeof markup !== 'string') {
return markup;
}
return String(markup).replace(/[&<>"'\/\\]/g, function (match) {
return replaceMap[match];
});
};
// Append an array of jQuery nodes to a given element.
Utils.appendMany = function ($element, $nodes) {
// jQuery 1.7.x does not support $.fn.append() with an array
// Fall back to a jQuery object collection using $.fn.add()
if ($.fn.jquery.substr(0, 3) === '1.7') {
var $jqNodes = $();
$.map($nodes, function (node) {
$jqNodes = $jqNodes.add(node);
});
$nodes = $jqNodes;
}
$element.append($nodes);
};
return Utils;
});
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