CJL.0.1.js

/*!
 * Cloudgamer JavaScript Library v0.1
 * Copyright (c) 2009 cloudgamer
 * Blog: http://cloudgamer.cnblogs.com/
 * Date: 2009-10-15
 */

var $$, $$B, $$A, $$F, $$D, $$E, $$CE, $$S;

(function(undefined){

var O, B, A, F, D, E, CE, S;


/*Object*/

O = function (id) {
    return "string" == typeof id ? document.getElementById(id) : id;
};

O.emptyFunction = function(){};

O.extend = function (destination, source, override) {
    if (override === undefined) override = true;
    for (var property in source) {
        if (override || !(property in destination)) {
            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;
};

/*from youa*/
O.wrapper = function(me, parent) {
    var ins = function() { me.apply(this, arguments); };
    var subclass = function() {};
    subclass.prototype = parent.prototype;
    ins.prototype = new subclass;
    return ins;
};


/*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 = "safari" == i ? "version" : i; break; }
    }
    b.version = vMark && RegExp("(?:" + vMark + ")[\/: ]([\d.]+)").test(ua) ? RegExp.$1 : "0";
    
    b.ie = b.msie;
    b.ie6 = b.msie && parseInt(b.version, 10) == 6;
    b.ie7 = b.msie && parseInt(b.version, 10) == 7;
    b.ie8 = b.msie && parseInt(b.version, 10) == 8;
    
    return b;
})(window.navigator.userAgent.toLowerCase());


/*Array*/

A = function(){
    
    var ret = {
        isArray: function( obj ) {
            return Object.prototype.toString.call(obj) === "[object Array]";
        },
        indexOf: function( array, elt, from ){
            if (array.indexOf) {
                return isNaN(from) ? array.indexOf(elt) : array.indexOf(elt, from);
            } else {
                var len = array.length;
                from = isNaN(from) ? 0
                    : from < 0 ? Math.ceil(from) + len : Math.floor(from);
                
                for ( ; from < len; from++ ) { if ( array[from] === elt ) return from; }
                return -1;
            }
        },
        lastIndexOf: function( array, elt, from ){
            if (array.lastIndexOf) {
                return isNaN(from) ? array.lastIndexOf(elt) : array.lastIndexOf(elt, from);
            } else {
                var len = array.length;
                from = isNaN(from) || from >= len - 1 ? len - 1
                    : from < 0 ? Math.ceil(from) + len : Math.floor(from);
                
                for ( ; from > -1; from-- ) { if ( array[from] === elt ) return from; }
                return -1;
            }
        }
    };
    
    function each( object, callback ) {
        if ( undefined === object.length ){
            for ( var name in object ) {
                if (false === callback( object[name], name, object )) break;
            }
        } else {
            for ( var i = 0, len = object.length; i < len; i++ ) {
                if (i in object) { if (false === callback( object[i], i, object )) break; }
            }
        }
    };
    
    each({
            forEach: function( object, callback, thisp ){
                each( object, function(){ callback.apply(thisp, arguments); } );
            },
            map: function( object, callback, thisp ){
                var ret = [];
                each( object, function(){ ret.push(callback.apply(thisp, arguments)); });
                return ret;
            },
            filter: function( object, callback, thisp ){
                var ret = [];
                each( object, function(item){
                        callback.apply(thisp, arguments) && ret.push(item);
                    });
                return ret;
            },
            every: function( object, callback, thisp ){
                var ret = true;
                each( object, function(){
                        if ( !callback.apply(thisp, arguments) ){ ret = false; return false; };
                    });
                return ret;
            },
            some: function( object, callback, thisp ){
                var ret = false;
                each( object, function(){
                        if ( callback.apply(thisp, arguments) ){ ret = true; return false; };
                    });
                return ret;
            }
        }, function(method, name){
            ret[name] = function( object, callback, thisp ){
                if (object[name]) {
                    return object[name]( callback, thisp );
                } else {
                    return method( object, callback, thisp );
                }
            }
        });
    
    return ret;
}();


/*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: document.defaultView
        ? function (a, b) { return !!( a.compareDocumentPosition(b) & 16 ); }
        : function (a, b) { return a != b && a.contains(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 = D.getScrollLeft(node); top = bottom = D.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 = D.rect(node), sLeft = D.getScrollLeft(node), sTop = D.getScrollTop(node);
        rect.left -= sLeft; rect.right -= sLeft;
        rect.top -= sTop; rect.bottom -= sTop;
        return rect;
    },
    curStyle: document.defaultView
        ? function (elem) { return document.defaultView.getComputedStyle(elem, null); }
        : function (elem) { return elem.currentStyle; },
    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.style, curStyle = elem.currentStyle;
            //透明度 from youa
            if ( name == "opacity" ) {
                if ( /alpha(opacity=(.*))/i.test(curStyle.filter) ) {
                    var opacity = parseFloat(RegExp.$1);
                    return opacity ? opacity / 100 : 0;
                }
                return 1;
            }
            if ( name == "float" ) { name = "styleFloat"; }
            var ret = curStyle[ name ] || curStyle[ S.camelize( name ) ];
            //单位转换 from jqury
            if ( !/^-?d+(?:px)?$/i.test( ret ) && /^-?d/.test( ret ) ) {
                var left = style.left, rtStyle = elem.runtimeStyle, rsLeft = rtStyle.left;
                
                rtStyle.left = curStyle.left;
                style.left = ret || 0;
                ret = style.pixelLeft + "px";
                
                style.left = left;
                rtStyle.left = rsLeft;
            }
            return ret;
        },
    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 jquery
                    elem.style.filter = (elem.currentStyle && elem.currentStyle.filter || "").replace( /alpha([^)]*)/, "" ) + " alpha(opacity=" + (value * 100 | 0) + ")";
                } else if (name == "float") {
                    elem.style[ B.ie ? "styleFloat" : "cssFloat" ] = value;
                } else {
                    elem.style[ S.camelize( name ) ] = value;
                }
            };
        });
    },
    getSize: function(elem) {
        var width = elem.offsetWidth, height = elem.offsetHeight;
        if ( !width && !height ) {
            var repair = !D.contains( document.body, elem ), parent;
            if ( repair ) {//如果元素不在body上
                parent = elem.parentNode;
                document.body.insertBefore(elem, document.body.childNodes[0]);
            }
            var style = elem.style,
                cssShow = { position: "absolute", visibility: "hidden", display: "block", left: "-9999px", top: "-9999px" },
                cssBack = { position: style.position, visibility: style.visibility, display: style.display, left: style.left, top: style.top };
            D.setStyle( elem, cssShow );
            width = elem.offsetWidth; height = elem.offsetHeight;
            D.setStyle( elem, cssBack );
            if ( repair ) {
                parent ? parent.appendChild(elem) : document.body.removeChild(elem);
            }
        }
        return { "width": width, "height": height };
    }
};


/*Event*/
E = (function(){
    /*from dean edwards*/
    var addEvent, removeEvent, guid = 1,
        storage = 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];
                }
            }
        };
    if ( window.addEventListener ) {
        var fix = { "mouseenter": "mouseover", "mouseleave": "mouseout" };
        addEvent = function( element, type, handler ){
            if ( type in fix ) {
                storage( element, type, handler );
                var fixhandler = element.events[type][handler.$$guid] = function(event){
                    var related = event.relatedTarget;
                    if ( !related || (element != related && !(element.compareDocumentPosition(related) & 16)) ){
                        handler.call(this, event);
                    }
                };
                element.addEventListener(fix[type], fixhandler, false);
            } else {
                element.addEventListener(type, handler, false);
            };
        };
        removeEvent = function( element, type, handler ){
            if ( type in fix ) {
                if (element.events && element.events[type]) {
                    element.removeEventListener(fix[type], element.events[type][handler.$$guid], false);
                    delete element.events[type][handler.$$guid];
                }
            } else {
                element.removeEventListener(type, handler, false);
            };
        };
    } else {
        addEvent = function( element, type, handler ){
            storage( element, type, handler );
            element.events[type][handler.$$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.srcElement);
        event.pageY = event.clientY + D.getScrollTop(event.srcElement);
        event.target = event.srcElement;
        event.stopPropagation = stopPropagation;
        event.preventDefault = preventDefault;
        var relatedTarget = {
                "mouseout": event.toElement, "mouseover": event.fromElement
            }[ event.type ];
        if ( relatedTarget ){ event.relatedTarget = relatedTarget;}
        
        return event;
    };
    function stopPropagation() { this.cancelBubble = true; };
    function preventDefault() { this.returnValue = false; };
    
    return {
        "addEvent": addEvent,
        "removeEvent": removeEvent,
        "fixEvent": fixEvent
    };
})();


/*CustomEvent*/

CE = (function(){
    var guid = 1;
    return {
        addEvent: function( object, type, handler ){
            if (!handler.$$$guid) handler.$$$guid = guid++;
            if (!object.cusevents) object.cusevents = {};
            if (!object.cusevents[type]) object.cusevents[type] = {};
            object.cusevents[type][handler.$$$guid] = handler;
        },
        removeEvent: function( object, type, handler ){
            if (object.cusevents && object.cusevents[type]) {
                delete object.cusevents[type][handler.$$$guid];
            }
        },
        fireEvent: function( object, type ){
            if (!object.cusevents) return;
            var args = Array.prototype.slice.call(arguments, 2),
                handlers = object.cusevents[type];
            for (var i in handlers) {
                handlers[i].apply(object, args);
            }
        },
        clearEvent: function( object ){
            if (!object.cusevents) return;
            for (var type in object.cusevents) {
                var handlers = object.cusevents[type];
                for (var i in handlers) {
                    handlers[i] = null;
                }
                object.cusevents[type] = null;
            }
            object.cusevents = null;
        }
    };
})();


/*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) {}
};


/*define*/

$$ = O; $$B = B; $$A = A; $$F = F; $$D = D; $$E = E; $$CE = CE; $$S = S;

})();

转载自：http://www.cnblogs.com/cloudgamer/