MagicMirror/js/class.js
2020-05-03 18:59:26 +02:00

97 lines
2.4 KiB
JavaScript

/* global Class, xyz */
/* Simple JavaScript Inheritance
* By John Resig https://johnresig.com/
*
* Inspired by base2 and Prototype
*
* MIT Licensed.
*/
(function () {
var initializing = false;
var fnTest = /xyz/.test(function () { xyz; }) ? /\b_super\b/ : /.*/;
// The base Class implementation (does nothing)
this.Class = function () { };
// Create a new Class that inherits from this class
Class.extend = function (prop) {
var _super = this.prototype;
// Instantiate a base class (but only create the instance,
// don't run the init constructor)
initializing = true;
var prototype = new this();
initializing = false;
// Make a copy of all prototype properties, to prevent reference issues.
for (var p in prototype) {
prototype[p] = cloneObject(prototype[p]);
}
// Copy the properties over onto the new prototype
for (var name in prop) {
// Check if we're overwriting an existing function
prototype[name] = typeof prop[name] === "function" &&
typeof _super[name] === "function" && fnTest.test(prop[name]) ? (function (name, fn) {
return function () {
var tmp = this._super;
// Add a new ._super() method that is the same method
// but on the super-class
this._super = _super[name];
// The method only need to be bound temporarily, so we
// remove it when we're done executing
var ret = fn.apply(this, arguments);
this._super = tmp;
return ret;
};
})(name, prop[name]) : prop[name];
}
// The dummy class constructor
function Class() {
// All construction is actually done in the init method
if (!initializing && this.init) {
this.init.apply(this, arguments);
}
}
// Populate our constructed prototype object
Class.prototype = prototype;
// Enforce the constructor to be what we expect
Class.prototype.constructor = Class;
// And make this class extendable
Class.extend = arguments.callee;
return Class;
};
})();
//Define the clone method for later use.
//Helper Method
function cloneObject(obj) {
if (obj === null || typeof obj !== "object") {
return obj;
}
var temp = obj.constructor(); // give temp the original obj's constructor
for (var key in obj) {
temp[key] = cloneObject(obj[key]);
if (key === "lockStrings") {
Log.log(key);
}
}
return temp;
}
/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== "undefined") {
module.exports = Class;
}