[Javascript] 层控制(隐藏、显示、卷起、展开)

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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Animate</title>
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function(){
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window['dk']['contains']=contains;
//获取Event对象
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//停止冒泡
function stopBubble(e){
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window['dk']['stopBubble']=stopBubble;
//恢复冒泡
function startBubble(e){
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//检查mouseover和mouseout模式下取消事件派发
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window['dk']['getPositionInDoc'] = getPositionInDoc;
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//获取鼠标在Document中的位置
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window['dk']['getMousePositionInDoc'] = getMousePositionInDoc;
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//日志
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//Dom加载完成事件
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var _$ = function(node){
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_$.prototype = {
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$$ = function(node){
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var Tween={
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    Quad: {
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            return c*(t/=d)*t + b;
        },
        easeOut: function(t,b,c,d){
            return -c *(t/=d)*(t-2) + b;
        },
        easeInOut: function(t,b,c,d){
            if ((t/=d/2) < 1) return c/2*t*t + b;
            return -c/2 * ((--t)*(t-2) - 1) + b;
        }
    },
    Cubic: {
        easeIn: function(t,b,c,d){
            return c*(t/=d)*t*t + b;
        },
        easeOut: function(t,b,c,d){
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        },
        easeInOut: function(t,b,c,d){
            if ((t/=d/2) < 1) return c/2*t*t*t + b;
            return c/2*((t-=2)*t*t + 2) + b;
        }
    },
    Quart: {
        easeIn: function(t,b,c,d){
            return c*(t/=d)*t*t*t + b;
        },
        easeOut: function(t,b,c,d){
            return -c * ((t=t/d-1)*t*t*t - 1) + b;
        },
        easeInOut: function(t,b,c,d){
            if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
            return -c/2 * ((t-=2)*t*t*t - 2) + b;
        }
    },
    Back: {
        easeIn: function(t,b,c,d,s){
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            return c*(t/=d)*t*((s+1)*t - s) + b;
        },
        easeOut: function(t,b,c,d,s){
            if (s == undefined) s = 1.70158;
            return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
        },
        easeInOut: function(t,b,c,d,s){
            if (s == undefined) s = 1.70158; 
            if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
            return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
        }
    }
}
var Motion=function(target){
    var t = 0;
    var d = 150;
    var delayTime = 10;
    var styles=null;
    var stylesChange={};
    var stylesBegin={};
    var callBackFunc=null;
    var timer=null;
    var quickStylesBefore=null;
    var quickStylesAfter=null;
    var animateStatus=false;
    var funcQueue=[];
    if(typeof(target)=='string')
        target=document.getElementById(target);
    
    this.resetStatus=function(){
        t=0;
        styles=null;
        stylesChange={};
        stylesBegin={};
        callBackFunc=null;
        timer=null;
        quickStylesBefore=null;
        quickStylesAfter=null;
    }
    this.setDelayTime=function(_delayTime){
        delayTime = _delayTime;
    }
    this.setStyles=function(_styles){
        styles=_styles;
    }
    this.setCallBackFunc=function(_callBackFunc){
        callBackFunc=_callBackFunc;
    }
    this.pushFuncToQueue = function(funcString){
        funcQueue.push(funcString);
    }
    this.getAnimateStatus=function(){
        return animateStatus;
    }
    this.setQuickStyle=function(_quickStyles,quickType){
        if(quickType)
            quickStylesBefore = _quickStyles;
        else
            quickStylesAfter = _quickStyles;
    }
    this.getTargetStyle=function(){
        return {target.style.width || target.clientWidth,height:target.style.height || target.clientHeigth}
    }
    var calculatChange=function(){
        for(var styleName in styles){
            stylesChange[styleName]=parseInt(styles[styleName])-parseInt(target.style[styleName] || 0);
            stylesBegin[styleName]=parseInt(target.style[styleName] || 0);
        }
    }
    
    var setTargetStyles=function(_styles){
        for(var styleName in _styles){
            target.style[styleName]=_styles[styleName];
        }
    }
    
    var beforeRun = function(){
        quickStylesBefore && setTargetStyles(quickStylesBefore);
        calculatChange();        
        target.style.display='block';
        animateStatus = true;
    }
    
    this.afterRun = function(){
        if(target.style.width=='0px'||target.style.height=='0px')
            target.style.display='none';
        quickStylesAfter && setTargetStyles(quickStylesAfter);
        if(funcQueue.length>0)
        {
            animateStatus = false;
            var currentFuncArray=funcQueue.shift();
            return currentFuncArray[0].apply(this,currentFuncArray[1]);
        }
            
        animateStatus = false;
        //this.slideDown();
    }
    
    this.run=function(){
        
        (t == 0) && beforeRun();
        for(var styleName in styles){
            target.style[styleName]=Tween.Quad.easeInOut(t,stylesBegin[styleName],stylesChange[styleName],d) + 'px';
        }
        t++;
        if(t<=d)
            return timer = setTimeout(dk.bind(this,this.run),delayTime);
        this.afterRun();
        if(callBackFunc)
            return callBackFunc();
    }
}
Motion.prototype={
    animate : function(styles,callBackFunc){
        if(this.getAnimateStatus())
            return this.pushFuncToQueue([this.animate,arguments]);
        this.resetStatus();
        this.setStyles(styles)
        this.setCallBackFunc(callBackFunc);        
        this.run();
    },
    slideDown:function(callBackFunc){
        if(this.getAnimateStatus())
            return this.pushFuncToQueue([this.slideDown,arguments]);
        this.resetStatus();
        var targetStyle=this.getTargetStyle();
        this.setQuickStyle({height:'0px'},true);
        this.setStyles({height:targetStyle.height});
        this.setCallBackFunc(callBackFunc);
        this.run();
    },
    slideUp:function(callBackFunc){
        if(this.getAnimateStatus())
            return this.pushFuncToQueue([this.slideUp,arguments]);
        this.resetStatus();
        var targetStyle=this.getTargetStyle();
        this.setQuickStyle({height:targetStyle.height},false);
        this.setStyles({height:'0px'});
        this.setCallBackFunc(callBackFunc);
        this.run();
    },
    show:function(callBackFunc){
        this.resetStatus();
        var targetStyle=this.getTargetStyle();
        this.setQuickStyle({'0px',height:'0px'},true);
        this.setStyles({targetStyle.width,height:targetStyle.height});
        this.setCallBackFunc(callBackFunc);
        this.run();
    },
    hide:function(callBackFunc){
        this.resetStatus();
        var targetStyle=this.getTargetStyle();
        this.setQuickStyle({targetStyle.width,height:targetStyle.height},false);
        this.setStyles({'0px',height:'0px'});
        this.setCallBackFunc(callBackFunc);
        this.run();
    }
}
var divA;
window.onload=function(){
    divA=new Motion('myDiv');
}
</script>
</head>
<body>
<div id="myDiv" style="position:absolute;left:0;background:#f00; overflow:hidden;300px; height:500px;display:block;">This is out test content.</div>
<div id="div2" style="position:absolute; right:0; background:#ff0;"><a href="http://www.baidu.com" target="_blank" onclick="alert('a');return false;">Hello</a></div>
<input type="button" id="btn1" value="hide" onclick="divA.animate({'0px'})" style="position:fixed; bottom:0; left:40%;"/>
<input type="button" id="btn2" value="show" onclick="divA.animate({'600px'})" style="position:fixed; bottom:0; left:50%;"/>
<input type="button" id="btn3" value="slideUp" onclick="divA.slideUp()" style="position:fixed; bottom:0; left:60%;"/>
<input type="button" id="btn4" value="slideDown" onclick="divA.slideDown()" style="position:fixed; bottom:0; left:70%;"/>
</body>
</html>
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原文地址：https://www.cnblogs.com/jqmtony/p/3951437.html