最后说说调用方式，跟调用一般函数方法是一样的，只是前面要带上命名空间。
例如：$$.extend(...)
像$$由于本身就是function，可以直接这样用：$$(...)
链式调用或许比较酷，但不太适合用在这样的工具库上，除非是扩展原生对象（这里也没有使用）。
完整代码
复制代码 代码如下:
/*!
* Cloudgamer JavaScript Library v0.1
* Copyright (c) 2009 cloudgamer
* Blog:
* Date: 2009-10-29
*/
var $$, $$B, $$A, $$F, $$D, $$E, $$S;
(function(){
var O, B, A, F, D, E, S;
/*Object*/
O = function (id) { return "string" == typeof id ? document.getElementById(id) : id; };
O.extend = function (destination, source) {
for (var property in source) {
destination[property] = source[property];
}
return destination;
};
O.deepextend = function (destination, source) {
for (var property in source) {
var copy = source[property];
if ( destination === copy ) continue;
if ( typeof copy === "object" ){
destination[property] = arguments.callee( destination[property] || {}, copy );
}else{
destination[property] = copy;
}
}
return destination;
};
/*Browser*/
/*from youa*/
B = (function(ua){
var b = {
msie: /msie/.test(ua) && !/opera/.test(ua),
opera: /opera/.test(ua),
safari: /webkit/.test(ua) && !/chrome/.test(ua),
firefox: /firefox/.test(ua),
chrome: /chrome/.test(ua)
};
var vMark = "";
for (var i in b) {
if (b[i]) {
vMark = i;
}
}
if (b.safari) {
vMark = "version";
}
b.version = RegExp("(?:" + vMark + ")[\\/: ]([\\d.]+)").test(ua) ? RegExp.$1 : "0";
b.ie = b.msie;
b.ie6 = b.msie && parseInt(b.version) == 6;
b.ie7 = b.msie && parseInt(b.version) == 7;
b.ie8 = b.msie && parseInt(b.version) == 8;
return b;
})(window.navigator.userAgent.toLowerCase());
/*Array*/
A = {
isArray: function( obj ) {
return Object.prototype.toString.call(obj) === "[object Array]";
},
forEach: function( array, callback, thisp ){
if (array.forEach) {
array.forEach(callback, thisp);
} else {
for ( var i = 0, len = array.length; i < len; i++ ) {
callback.call( thisp, array[i], i, array );
}
}
},
filter: function( array, callback, thisp ){
if (array.filter) {
return array.filter(callback, thisp);
} else {
var res = [];
for ( var i = 0, len = array.length; i < len; i++ ) {
callback.call( thisp, array[i], i, array ) && res.push(array[i]);
};
return res;
}
},
every: function( array, callback, thisp ){
if (array.every) {
return array.every(callback, thisp);
} else {
for ( var i = 0, len = array.length; i < len; i++ ) {
if ( !callback.call( thisp, array[i], i, array ) ) return false;
};
return true;
}
},
some: function( array, callback, thisp ){
if (array.some) {
return array.some(callback, thisp);
} else {
for ( var i = 0, len = array.length; i < len; i++ ) {
if ( callback.call( thisp, array[i], i, array ) ) return true;
};
return false;
}
},
map: function( array, callback, thisp ){
if (array.map) {
return array.map(callback, thisp);
} else {
var res = [];
for ( var i = 0, len = array.length; i < len; i++ ) {
res.push( callback.call( thisp, array[i], i, array ) );
};
return res;
}
},
indexOf: function( array, elt ){
if (array.indexOf) {
return array.indexOf(elt);
} else {
for ( var i = 0, len = array.length; i < len; i++ ) {
if ( array[i] === elt ) return i;
};
return -1;
}
},
lastIndexOf: function( array, elt, from ){
if (array.lastIndexOf) {
return array.lastIndexOf(elt);
} else {
var len = array.length;
if ( isNaN(from) || from >= len - 1 ) {
from = len - 1;
} else {
from = from < 0 ? Math.ceil(from) + len : Math.floor(from);
}
for ( ; from > -1; from-- ) { if ( array[i] === elt ) return i; };
return -1;
}
}
};
/*Function*/
F = (function(){
var slice = Array.prototype.slice;
return {
bind: function( fun, thisp ) {
var args = slice.call(arguments, 2);
return function() {
return fun.apply(thisp, args.concat(slice.call(arguments)));
}
},
bindAsEventListener: function( fun, thisp ) {
var args = slice.call(arguments, 2);
return function(event) {
return fun.apply(thisp, [E.fixEvent(event)].concat(args));
}
}
};
})();
/*Dom*/
D = {
getScrollTop: function(node){
var doc = node ? node.ownerDocument : document;
return doc.documentElement.scrollTop || doc.body.scrollTop;
},
getScrollLeft: function(node){
var doc = node ? node.ownerDocument : document;
return doc.documentElement.scrollLeft || doc.body.scrollLeft;
},
contains: function(a, b){
return (this.contains = a.compareDocumentPosition
? function(a, b){ return !!(a.compareDocumentPosition(b) & 16); }
: function(a, b){ return a != b && a.contains(b); }
)(a, b);
},
rect: function(node){
var left = 0, top = 0, right = 0, bottom = 0;
//ie8的getBoundingClientRect获取不准确
if ( !node.getBoundingClientRect || B.ie8 ) {
var n = node;
while (n) { left += n.offsetLeft, top += n.offsetTop; n = n.offsetParent; };
right = left + node.offsetWidth; bottom = top + node.offsetHeight;
} else {
var rect = node.getBoundingClientRect();
left = right = this.getScrollLeft(node); top = bottom = this.getScrollTop(node);
left += rect.left; right += rect.right;
top += rect.top; bottom += rect.bottom;
};
return { "left": left, "top": top, "right": right, "bottom": bottom };
},
clientRect: function(node){
var rect = this.rect(node), sLeft = this.getScrollLeft(node), sTop = this.getScrollTop(node);
rect.left -= sLeft; rect.right -= sLeft;
rect.top -= sTop; rect.bottom -= sTop;
return rect;
},
curStyle: function(elem){
return (this.curStyle = document.defaultView
? function(elem){ return document.defaultView.getComputedStyle(elem, null); }
: function(elem){ return elem.currentStyle; }
)(elem);
},
getStyle: function(elem, name){
return (this.getStyle = document.defaultView
? function(elem, name){
var style = document.defaultView.getComputedStyle(elem, null);
return name in style ? style[ name ] : style.getPropertyValue( name );
}
: function(elem, name){
var style = elem.currentStyle;
//透明度 from youa
if (name == "opacity") {
if (/alpha\(opacity=(.*)\)/i.test(style.filter)) {
var opacity = parseFloat(RegExp.$1);
return opacity ? opacity / 100 : 0;
}
return 1;
};
if (name == "float") { name = "styleFloat"; }
var ret = style[ name ] || style[ S.camelize( name ) ];
//单位转换 from jqury
if ( !/^\-?\d+(px)?$/i.test( ret ) && /^\-?\d/.test( ret ) ) {
style = elem.style, left = style.left, rsLeft = elem.runtimeStyle.left;
elem.runtimeStyle.left = elem.currentStyle.left;
style.left = ret || 0;
ret = style.pixelLeft + "px";
style.left = left;
elem.runtimeStyle.left = rsLeft;
}
return ret;
}
)(elem, name);
},
setStyle: function(elems, style, value) {
if (!elems.length) { elems = [ elems ]; }
if (typeof style == "string") { var s = style; style = {}; style[s] = value; }
A.forEach(elems, function(elem){
for (var name in style) {
var value = style[name];
if (name == "opacity" && B.ie) {
//ie透明度设置 from jqury
elem.style.filter = (elem.currentStyle.filter || "").replace( /alpha\([^)]*\)/, "" ) +
"alpha(opacity=" + value * 100 + ")";
} else if (name == "float") {
elem.style[ B.ie ? "styleFloat" : "cssFloat" ] = value;
} else {
elem.style[ S.camelize( name ) ] = value;
}
};
});
}
};
/*Event*/
E = (function(){
/*from dean edwards*/
var addEvent, removeEvent, guid = 1;
if ( window.addEventListener ) {
addEvent = function(element, type, handler){
element.addEventListener(type, handler, false);
};
removeEvent = function(element, type, handler){
element.removeEventListener(type, handler, false);
};
} else {
addEvent = function(element, type, handler){
if (!handler.$$guid) handler.$$guid = guid++;
if (!element.events) element.events = {};
var handlers = element.events[type];
if (!handlers) {
handlers = element.events[type] = {};
if (element["on" + type]) {
handlers[0] = element["on" + type];
}
}
handlers[handler.$$guid] = handler;
element["on" + type] = handleEvent;
};
removeEvent = function(element, type, handler){
if (element.events && element.events[type]) {
delete element.events[type][handler.$$guid];
}
};
function handleEvent() {
var returnValue = true, event = fixEvent();
var handlers = this.events[event.type];
for (var i in handlers) {
this.$$handleEvent = handlers[i];
if (this.$$handleEvent(event) === false) {
returnValue = false;
}
}
return returnValue;
};
}
function fixEvent(event) {
if (event) return event;
event = window.event;
event.pageX = event.clientX + D.getScrollLeft();
event.pageY = event.clientY + D.getScrollTop();
event.target = event.srcElement;
event.stopPropagation = stopPropagation;
event.preventDefault = preventDefault;
if(event.type == "mouseout") {
event.relatedTarget = event.toElement;
}else if(event.type == "mouseover") {
event.relatedTarget = event.fromElement;
}
return event;
};
function stopPropagation() { this.cancelBubble = true; };
function preventDefault() { this.returnValue = false; };
return {
"addEvent": addEvent,
"removeEvent": removeEvent,
"fixEvent": fixEvent
};
})();
/*String*/
S = {
camelize: function(s){
return s.replace(/-([a-z])/ig, function(all, letter) { return letter.toUpperCase(); });
}
};
/*System*/
// remove css image flicker
if (B.ie6) {
try {
document.execCommand("BackgroundImageCache", false, true);
} catch(e) {}
};
/**/
$$ = O; $$B = B; $$A = A; $$F = F; $$D = D; $$E = E; $$S = S;
})();
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