源码查看
PureMVC 模块的划分
- Proxy:他是负责数据的模型
- Mediator:是视图模型
- Command:Command可以获取Proxy对象并与交互,发送Notification,执行Commoand
进入场景并且初始化
初始化pureMVC
1.知识点:单利模式
2.框架进行启动的初始化
var facade:puremvc.IFacade = puremvc.Facade.getInstance(‘FacadeTestKey2‘);
然后进入到Facade的类当中看看,首先是单利
static instanceMap:Object = {};//单利列表的哈希表对象
static getInstance( key:string ):IFacade
{
if( !Facade.instanceMap[ key ] )
Facade.instanceMap[ key ] = new Facade( key );
return Facade.instanceMap[ key ];
}
在创建对象的时候
//构造函数
constructor( key )
{
//判断是否在列表中存在
if( Facade.instanceMap[ key ] )
throw Error( Facade.MULTITON_MSG );
this.initializeNotifier( key );
Facade.instanceMap[ key ] = this; //把对象绑定
this.initializeFacade(); //初始化操作
}
//把当前的key值存储起来
initializeNotifier( key:string ):void
{
this.multitonKey = key;
}
//初始化操作
initializeFacade():void
{
this.initializeModel();
this.initializeController();
this.initializeView();
}
然后初始化对应的操作
//初始化模型
initializeModel():void
{
if( !this.model )
this.model = Model.getInstance( this.multitonKey );
}
//初始化控制器
initializeController():void
{
if( !this.controller )
this.controller = Controller.getInstance( this.multitonKey );
}
//初始化view层
initializeView():void
{
if( !this.view )
this.view = View.getInstance( this.multitonKey );
}
从这里面的源码可以看出来,开始初始化绑定FMVC每一个都绑定在一起。
这个类它继承于IFacade
查看IFacade类
export interface IFacade extends INotifier
{
//注册Command,第二参数是返回函数
registerCommand( notificationName:string, commandClassRef:Function ):void;
//删除对应的command
removeCommand( notificationName:string ): void;
//判断这个command是否哦存在
hasCommand( notificationName:string ):boolean;
//注册数据类
registerProxy( proxy:IProxy ):void;
//获得数据对象
retrieveProxy( proxyName:string ):IProxy;
//删除数据对象
removeProxy( proxyName:string ):IProxy;
//是否有数据对象
hasProxy( proxyName:string ):boolean;
//注册试图对象
registerMediator( mediator:IMediator ):void;
//获得试图对象
retrieveMediator( mediatorName:string ):IMediator;
//删除试图对象
removeMediator( mediatorName:string ):IMediator;
//是否存在试图对象
hasMediator( mediatorName:string ):boolean;
//数据对象
notifyObservers( notification:INotification ):void;
}
从这个接口可以看出来,主要是注册,绑定MVC三个模块,然后删除,获得对应的对象等等操作,然后这个接口也是继承 INotifier 这个接口
module puremvc
{
export interface INotifier
{
sendNotification( name:string, body?:any, type?:string ):void;
//记录当前的key数据
initializeNotifier( key:string ):void;
}
}
下面是注册Command
facade.registerCommand( ‘FacadeTestNote‘, FacadeTestCommand );
然后进入到FacadeTestCommand类中
module test
{
"use strict";
export class FacadeTestCommand extends puremvc.SimpleCommand implements puremvc.ICommand
{
//发送对应的数据
execute( notification:puremvc.INotification )
{
var vo:FacadeTestVO = <FacadeTestVO> notification.getBody();
// Fabricate a result
vo.result = 2 * vo.input;
}
}
}
FacadeTestVO类
typescript
module test
{
"use strict";
//这个类很简单就是传入一个数据
export class FacadeTestVO
{
constructor( input:number )
{
this.input = input;
}
input:number = null;
result:number = null;
}
}
代码
typescript
facade.sendNotification( ‘FacadeTestNote‘, vo );
然后在 FacadeTestCommand 里面进行数据操作,这里是注册Command的操作
FacadeTestCommand类继承于SimpleCommand类和ICommand接口
SimpleCommand类
typescript
export class SimpleCommand
extends Notifier
implements ICommand, INotifier
{
//只有一个方法,这个方法就是发送过来对应的数据
execute( notification:INotification ):void
{
}
}
Notifier 类
typescript
module puremvc
{
"use strict";
export class Notifier implements INotifier
{
//这个是INotifier接口的方法和
multitonKey:string = null;
initializeNotifier( key )
{
this.multitonKey = key;
}
//end
//发送数据
sendNotification( name:string, body:any=null, type:string=null ):void
{
if( this.facade() )
this.facade().sendNotification( name, body, type );
}
//通过key获取对应的对象
facade():IFacade
{
if( this.multitonKey === null )
throw Error( Notifier.MULTITON_MSG );
return Facade.getInstance( this.multitonKey );
}
static MULTITON_MSG:string = "multitonKey for this Notifier not yet initialized!";
}
}
ICommand接口
module puremvc
{
export interface ICommand extends INotifier
{
//监听到对应的notification方法
execute( notification:INotification ):void;
}
}
总结
1.使用Facade类对mvc进行初始化
2.初始化完成以后可以通过注册完成对mvc的绑定
3.通过SimpleCommand类的execute方法进行数据获取