Javascript乱弹设计模式系列(3) － 装饰者模式(Decorator)

核心提示： 3. 添加ConcreteDecorator.js的具体装饰者：ConcreteDecorator.js// 头像装饰者function HeadDecorator(person, model) {PersonDecorator.call(this, person);this.model

3. 添加ConcreteDecorator.js的具体装饰者：

ConcreteDecorator.js
// 头像装饰者
function HeadDecorator(person, model) {
　　PersonDecorator.call(this, person);
　　this.model = model;
}
inheritClass(HeadDecorator, PersonDecorator);
HeadDecorator.prototype.getData = function() {
　　var index = this.person.head.lastIndexOf("_");
　　if(index != -1)
　　　　this.person.head = this.person.head.slice(0, index);
　　this.person.head = this.person.head + "_" + this.model;
　　return this.person;
};
// 上衣装饰者
function BodyDecorator(person, model) {
　　PersonDecorator.call(this, person);
　　this.model = model;
}
inheritClass(BodyDecorator, PersonDecorator);
BodyDecorator.prototype.getData = function() {
　　var index = this.person.body.lastIndexOf("_");
　　if(index != -1)
　　　　this.person.body = this.person.body.slice(0, index);
　　this.person.body = this.person.body + "_" + this.model;
　　return this.person;
};
// 腰裤装饰者
function FootDecorator(person, model) {
　　PersonDecorator.call(this, person);
　　this.model = model;
}
inheritClass(FootDecorator, PersonDecorator);
FootDecorator.prototype.getData = function() {
　　var index = this.person.foot.lastIndexOf("_");
　　if(index != -1)
　　　　this.person.foot = this.person.foot.slice(0, index);
　　this.person.foot = this.person.foot + "_" + this.model;
　　return this.person;
};
// 背景装饰者
function BackgroundDecorator(person, model) {
　　PersonDecorator.call(this, person);
　　this.model = model;
}
inheritClass(BackgroundDecorator, PersonDecorator);
BackgroundDecorator.prototype.getData = function() {
　　this.person.background = "bg" + this.model;
　　return this.person;
};