cache[id] = {};
if(data !== undefined)
cache[id][name] = data;
return name
? cache[id][name]
: id;
}
win.removeData = function(elem, name){
var id = elem[expando];
if (name){
if (cache[id]) {
delete cache[id][name];
name = “”;
for ( name in cache[ id ] )
break;
if ( !name )
removeData(elem);
}
}else{
try {
delete elem[expando];
} catch(e){
if ( elem.removeAttribute )
elem.removeAttribute( expando );
}
delete cache[id];
}
}
win.each = function( object, callback, args ) {
var name, i = 0, length = object.length;
if ( args ) {
if ( length === undefined ) {
for ( name in object )
if ( callback.apply( object[ name ], args ) === false )
break;
} else
for ( ; i < length; )
if ( callback.apply( object[ i++ ], args ) === false )
break;
} else {
if ( length === undefined ) {
for ( name in object )
if ( callback.call( object[ name ], name, object[ name ] ) === false )
break;
} else
for ( var value = object[0];
i < length && callback.call( value, i, value ) !== false; value = object[++i] ){}
}
return object;
}
win.gevent = {
guid : 1,
add : function (elem, types, handler){
if ( elem.nodeType == 3 || elem.nodeType == 8 )
return;
if ( elem.setInterval && elem != window )
elem = window;
//给函数一个唯一标识的索引 方便后面删除该事件
if ( !handler.guid )
handler.guid = this.guid++;
//获得该元素的events handle 下的数据
var events = data(elem, “events”) || data(elem, “events”, {}),
handle =data(elem, “handle”) || data(elem, “handle”, function(){
//gevent.handle才是各种行为触发后会执行的函数
gevent.handle.apply(arguments.callee.elem, arguments);
});
handle.elem = elem;
//遍历事件名 因为可以是 click mouseover
each(types.split(/s+/), function(index, type) {
var namespaces = type.split(“.”);
//获得事件名
type = namespaces.shift();
//去掉点后面的东西 是个特殊的命名 在删除的时候可以指定删除他 如 click.d
//用事件的type 记录住这个特殊的命名
handler.type = namespaces.slice().sort().join(“.”);
//获得该事件是否已经存在events 这个对象里面了
var handlers = events[type];
//如果不存在该事件 给元素绑定该事件
if (!handlers) {
handlers = events[type] = {};
if (elem.addEventListener)
elem.addEventListener(type, handle, false);
else if (elem.attachEvent)
elem.attachEvent(“on” + type, handle);
}
//吧函数放到元素的该事件的列表里面
handlers[handler.guid] = handler;
});
elem = null;
},
remove: function(elem, types, handler) {
if ( elem.nodeType == 3 || elem.nodeType == 8 )
return;
//获取这个元素的所有行为列表 如 {click:{},mouseocer:{}}
