/**
* Created by seeker910 on 13-12-31.
* @description 自定义事件管理器
*/
Rsd.define("Rsd.common.EventList", {
extend:'Rsd.common.Object',
xtype: 'event-list',
/*
* */
constructor: function EventList(config) {
this.apply(config);
this.handlers = {};
},
/**
* @description 添加事件
* @param {object} caller 指定fire时允许的调用者
* @param {string} name
* @param {function|string} handler
* @param {boolean} once 只执行一次,仅在 once==true ,且handler方法执行 无返回或返回true时 ，移除注册事件
* @param {string} group 分组关键字
* */
add: function add(caller,name, handler,once,group) {
var obj = this;
if (!obj.handlers) {
obj.handlers = {};
}
var _caller = null;
var _name = null;
var _fn = null;
var _once = null;
var _group = null;
for (var i = 0; i < arguments.length; i++) {
if (Rsd.isFunction(arguments[i])) {
if(Rsd.isString(_fn) )
{
_group = _fn;
}
_fn = arguments[i];
continue;
}
if (Rsd.isString(arguments[i]) && _name == null) {
_name = arguments[i].toLocaleString();
continue;
}
if (arguments[i] == Rsd || arguments[i] instanceof Rsd.common.Object) {
_caller = arguments[i];
continue;
}
if (Rsd.isBoolean(arguments[i]) && _once==null) {
_once = arguments[i];
continue;
}
if (Rsd.isString(arguments[i]) && _fn == null) {
_fn = arguments[i];
continue;
}
if (Rsd.isString(arguments[i]) && _group== null) {
_group = arguments[i];
continue;
}
}
if(_caller==null) {
_caller = this.parent;
}
if(_caller==null)
{
throw new Error('argument caller is not allow null and must instanceof type Rsd.common.Object.');
}
if (typeof obj.handlers[_name] == "undefined") {
obj.handlers[_name] = {};
}
if (typeof obj.handlers[_name][_caller.id] == "undefined") {
obj.handlers[_name][_caller.id] = [];
}
obj.handlers[_name][_caller.id].push({caller: _caller, fn: _fn, once: _once || false,group:_group});
},
/**
* @description 触发事件
* @param {object} caller 调用者，必须和add时caller一致，否则不会触发事件
* @param {function|string} name
* @param {Array} args
* @param {string} group 分组关键字
* */
fire: function fire(caller,name, args,group) {
var _caller = null;
var _name = null;
var _args = null;
var _group = null;
for(var i=0;i< arguments.length;i++)
{
if (Rsd.isString(arguments[i]) && _name==null) {
_name = arguments[i];
continue;
}
if (arguments[i] == Rsd || arguments[i] instanceof Rsd.common.Object) {
_caller = arguments[i];
continue;
}
if (Rsd.isArray(arguments[i])) {
_args = arguments[i];
continue;
}
if (Rsd.isString(arguments[i]) && _group== null) {
_group = arguments[i];
continue;
}
}
//console.log(_caller,_name,_args,_group);
var obj = this;
if(_caller==null) {
_caller = this.parent;
}
if(_caller==null)
{
throw new Error('argument caller is not allow null and must instanceof type Rsd.common.Object.');
}
if (obj.handlers && obj.handlers[_name] && obj.handlers[_name][_caller.id] instanceof Array) {
var handlers = obj.handlers[_name][_caller.id];
for (var i = 0, len = handlers.length; i < len; i++) {
if(_caller==handlers[i].caller && (_group==null || handlers[i].group==_group ))
{
var rs = Rsd.callFunction( _caller,handlers[i].fn, _args);
if( !handlers[i] || (handlers[i].once && (rs == undefined ||rs==true)) )
{
obj.handlers[_name][_caller.id].splice(i, 1);
len = handlers.length;
i--;
}
}
}
}
},
/**
* @description 移除事件，条件caller，name完全相等
* @param {object} caller 调用者，必须和add时caller一致，否则事件不会移除
* @param {string} name
* @param {string} group 分组关键字
* */
remove: function remove(caller,name,group) {
var _caller = null;
var _name = null;
var _group = null;
for(var i=0;i< arguments.length;i++)
{
if (Rsd.isString(arguments[i])&& _name ==null) {
_name = arguments[i];
continue;
}
if (arguments[i] == Rsd || arguments[i] instanceof Rsd.common.Object) {
_caller = arguments[i];
continue;
}
if (Rsd.isString(arguments[i]) && _group== null) {
_group = arguments[i];
continue;
}
}
if(_caller==null) {
_caller = this.parent;
}
if(_caller==null)
{
throw new Error('argument caller is not allow null and must instanceof type Rsd.common.Object.');
}
var obj = this;
if (obj.handlers[_name] && obj.handlers[_name][_caller.id] instanceof Array) {
var handlers = obj.handlers[_name][_caller.id];
for (var i = 0, len = handlers.length; i < len; i++) {
if(_caller==handlers[i].caller && (_group==null || handlers[i].group==_group )){
obj.handlers[_name][_caller.id].splice(i, 1);
len = handlers.length;
i--;
}
}
}
}
},function (type) {
window.Rsd.events = Rsd.create('Rsd.common.EventList',{parent:window.Rsd});
});