JS OOPパッケージ構造、クラス作成の方法定義

 
  
/** 
  
*     
  
* @param {} ns 
  
* @return {} 
  
*/ 
  
Xu.pkg = function(ns) { 
  
if (!ns || !ns.length) { 
  
return null; 
  
} 
  
var levels = ns.split("."); 
  
var nsobj = Xu; 
  
for (var i = (levels[0] == "Xu") ? 1 : 0; i < levels.length; ++i) { 
  
nsobj[levels[i]] = nsobj[levels[i]] || {}; 
  
nsobj = nsobj[levels[i]]; 
  
} 
  
return nsobj; 
  
}; 
  
 
 

 
  
// ------------------- Xu.Core.Class     
  
Xu.pkg("Core.Class"); 
  
var SYS_DEF_CLASS_NS = 'Xu.Class.Sys' ; 
  
var USER_DEF_CLASS_NS = 'Xu.Class.Custom' ; 
  
 
  
 
  
/** 
  
*         
  
* @param {String} Class 
  
* @return {Boolean} 
  
*/ 
  
Core.Class.isExist = function(Class){ 
  
if (Core.Util.isFunction(Class)) 
  
return true ; 
  
return false ; 
  
}; 
  
 
  
Core.Class.remove = function(Class){ 
  
if (Core.Class.isExist(Class)) 
  
Xu.pkg(Class.prototype.__pkg__)[Class.prototype.__class__] = null ; 
  
}; 
  
 
  
Core.Class.hasProperty = function(Class,property){ 
  
if (Core.Class.isExist(Class)) 
  
if ( Class[property] || Class.prototype[property]) 
  
return true ; 
  
return false ; 
  
}; 
  
 
  
/** 
  
*        ,      ,      
  
* @param packageName {String}      
  
* @param className {String}      
  
* @param superClass {Class}      
  
* @param classImp {Object}        
  
* @param isOverride {Boolean}     ,       ,      
  
* 
  
* @return {Function} 
  
*/ 
  
Core.Class.create = function(packageName,className,superClass,classImp,isOverride){ 
  
if (Core.Util.isNull(className) ||　className === ""){ 
  
return null ; 
  
} 
  
 
  
isOverride = isOverride || false ; 
  
try { 
  
var $this_class = eval(packageName + "." +className); 
  
if (Core.Class.isExist($this_class)) { 
  
trace( "isExist: " + className + " Override:" + isOverride ); 
  
if (!isOverride){ 
  
return null ; 
  
} 
  
} 
  
} 
  
catch(e){ 
  
//     ,         
  
} 
  
 
  
if (Core.Util.isNull(packageName) ||　packageName === ""){ 
  
packageName = USER_DEF_CLASS_NS ; 
  
} 
  
$this_pkg = Xu.pkg(packageName); 
  
//    ,            
  
if (Core.Util.isNull(superClass) ||　superClass === ""){ 
  
// superClass = Object ; 
  
superClass = Xu.Class.Sys.XClass ; 
  
} 
  
//    
  
$this_class = $this_pkg[className] = function(){}; 
  
 
  
//            ,         
  
$this_class.prototype = new superClass(); 
  
Object.extend($this_class.prototype , 
  
{ 
  
'__pkg__': packageName , 
  
'__superclass__': $this_class.prototype['__class__'] || 'Object', 
  
'__class__': className , 
  
'toString': function(){ 
  
return "[class: " + this.__pkg__ + "." + this.__class__ + "]" ; 
  
} 
  
} 
  
); 
  
if (Core.Util.isObject(classImp)){ 
  
$this_class.prototype = Object.extend( 
  
$this_class.prototype,classImp); 
  
} 
  
return $this_class ; 
  
} ; 
  
//    ,              . 
  
Core.Class.create(SYS_DEF_CLASS_NS,'XClass',Object,{ 
  
'version': 'V0.1' 
  
}); 
  
 
  
// Xu.Core.Class      
  
//         ; 
  
//Core.Class.create(SYS_DEF_CLASS_NS,'XClass',Object,{ 
  
// 'version': 'V0.5' 
  
//},true); 
  
// 
  
////            ; 
  
//Xu.Class.Sys.XClass.ve = '2' ; 
  
//trace(Core.Class.hasProperty(Xu.Class.Sys.XClass,'ve')); 
  
// 
  
////Core.Class.remove(Xu.Class.Sys.XClass); 
  
// 
  
//var x_class = new Xu.Class.Sys.XClass(); 
  
//trace(x_class.toString() + x_class.version ); 
  
//traceobj('XClass',Xu.Class.Sys.XClass.prototype); 
  
//// 
  
//var XClass_ = Core.Class.create(null,'XClass_',null,{h:'hello'}); 
  
//// 
  
//var x_class_ = new XClass_(); 
  
//trace(x_class_.toString() + x_class_.version ); 
  
//traceobj('XClass_',XClass_.prototype); 
  
//// 
  
//var X_ = Core.Class.create(null,'X_',XClass_,null); 
  
//// 
  
//var x_ = new X_(); 
  
//trace(x_.toString() + x_.version ); 
  
//traceobj('X_',X_.prototype);