Nickolay - Joose-3.013

Documentation | Source
Joose.Managed.My = new Joose.Managed.Role('Joose.Managed.My', {
    
    have : {
        myClass                         : null,
        
        needToReAlias                   : false
    },
    
    
    methods : {
        createMy : function (extend) {
            var thisMeta = this.meta
            var isRole = this instanceof Joose.Managed.Role
            
            var myExtend = extend.my || {}
            delete extend.my
            
            // Symbiont will generally have the same meta class as its hoster, excepting the cases, when the superclass also have the symbiont. 
            // In such cases, the meta class for symbiont will be inherited (unless explicitly specified)
            
            if (!isRole) myExtend.isa = myExtend.isa || this.superClass.meta.myClass 

            if (!myExtend.meta && !myExtend.isa) myExtend.meta = this.constructor
            
            var createdClass = this.myClass = Class(myExtend)
            
            this.c.prototype.my = this.c.my = isRole ? createdClass : new createdClass({ HOST : this.c })
            
            this.needToReAlias = true
        },
        
        
        aliasStaticMethods : function () {
            this.needToReAlias = false
            
            var c           = this.c
            var myProto     = this.myClass.prototype
            
            Joose.O.eachOwn(c, function (property, name) {
                if (property.IS_ALIAS) delete c[ name ] 
            })
            
            this.myClass.meta.stem.properties.methods.each(function (method, name) {
                
                if (!c[ name ])
                    (c[ name ] = function () {
                        return myProto[ name ].apply(c.my, arguments)
                    }).IS_ALIAS = true
            })
        }
    },
    
    
    override : {
        
        extend : function (props) {
            var myClass = this.myClass
            
            if (!myClass && this.superClass.meta.myClass) this.createMy(props)
            
            if (props.my) {
                if (!myClass) 
                    this.createMy(props)
                else {
                    this.needToReAlias = true
                    
                    myClass.meta.extend(props.my)
                    delete props.my
                }
            }
            
            this.SUPER(props)
            
            if (this.needToReAlias && !(this instanceof Joose.Managed.Role)) this.aliasStaticMethods()
        }  
    },
    
    
    before : {
        
        addRole : function () {
            var myStem
            
            Joose.A.each(arguments, function (arg) {
                //instanceof Class to allow treat classes as roles
                var role = (arg.meta instanceof Joose.Managed.Class) ? arg : arg.role
                
                if (role.meta.meta.hasAttribute('myClass') && role.meta.myClass) {
                    
                    if (!this.myClass) {
                        this.createMy({
                            my : {
                                does : role.meta.myClass
                            }
                        })
                        return
                    }
                    
                    myStem = this.myClass.meta.stem
                    if (!myStem.opened) myStem.open()
                    
                    myStem.addComposeInfo(role.my.meta.stem)
                }
            }, this)
            
            if (myStem) {
                myStem.close()
                
                this.needToReAlias = true
            }
        },
        
        
        removeRole : function () {
            if (!this.myClass) return
            
            var myStem = this.myClass.meta.stem
            myStem.open()
            
            Joose.A.each(arguments, function (role) {
                if (role.meta.meta.hasAttribute('myClass') && role.meta.myClass) {
                    myStem.removeComposeInfo(role.my.meta.stem)
                    
                    this.needToReAlias = true
                }
            }, this)
            
            myStem.close()
        }
        
    }
    
}).c