鼠标左右拖动图片，JS已限制不能垂直拖动

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引入JS
- 3.0.0 2.2.0 2.1.4 2.1.3 2.1.2 2.1.1 2.1.0 2.0.3 2.0.2 2.0.1 2.0.0 1.12.0 1.11.3 1.11.2 1.11.1 1.11.0 1.10.2 1.10.1 1.10.0 1.9.1 1.9.0 1.8.3 1.8.2 1.8.1 1.8.0 1.7.2 1.7.1 1.7 1.6.4 1.6.2 1.6.1 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0
- 1.7.3 1.7.2 1.7.1.0 1.7.0.0
- 2.0.0-beta.0 2.0.0-alpha.55 1.5.0-rc.0 1.4.8 1.4.0 1.3.20 1.2.29 1.1.5 1.0.8
- 1.8.3 1.7.0 1.6.0 1.5.2 1.4.4 1.3.3 1.2.4 1.1.7
- 1.10.4 1.9.7 1.8.10 1.7.8 1.6.3 1.5.4 1.4.6 1.3.3
- core1.6.0 core-compat1.6.0 core1.5.2 core-compat1.5.2 core-full-compat-yc1.4.5 core-full-compat1.4.5 core-full-nocompat-yc1.4.5 core-full-nocompat1.4.5
- 1.4.2 1.4.1 1.4.0 1.3.0 1.2.0 1.1.0
- 3.7.3 3.7.2 3.7.1 3.7.0 3.7 3.6.2 3.6.1 3.6

引入框架
- 1.4.5 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0 1.3.2
- 1.11.4 1.11.3 1.11.2 1.11.1 1.11.0 1.10.4 1.10.3 1.10.2
- 3.3.6 3.3.5 3.3.0 3.2.0 2.3.2

汉王

HTML代码

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>可以左右拖动的图片</title>
</head>
<body>
<STYLE type=text/css>#floater {
LEFT: 445px; POSITION: absolute; TOP: -3px; VISIBILITY: visible; WIDTH: 125px; Z-INDEX: 10}
</STYLE>
<Script language=JavaScript>
	self.onError=null;
	currentX = currentY = 0;
	whichIt = null;
	lastScrollX = 0; lastScrollY = 0;
	NS = (document.layers) ? 1 : 0;
	IE = (document.all) ? 1: 0;
	function heartBeat()
	{
		if(IE)
			{ diffY = document.body.scrollTop; diffX = document.body.scrollLeft; }
	    if(NS)
			{ diffY = self.pageYOffset; diffX = self.pageXOffset; }
		if(diffY != lastScrollY)
		{
			percent = .1 * (diffY - lastScrollY);
			if(percent > 0) percent = Math.ceil(percent);
			else percent = Math.floor(percent);
			if(IE) document.all.floater.style.pixelTop += percent;
			if(NS) document.floater.top += percent;
			lastScrollY = lastScrollY + percent;
		}
		if(diffX != lastScrollX)
		{
			percent = .1 * (diffX - lastScrollX);
			if(percent > 0)
				percent = Math.ceil(percent);
			else
				percent = Math.floor(percent);
			if(IE)
				document.all.floater.style.pixelLeft += percent;
			if(NS)
				document.floater.left += percent;
				lastScrollX = lastScrollX + percent;
		}
		}
	function checkFocus(x,y)
	{
	        stalkerx = document.floater.pageX;
	        stalkery = document.floater.pageY;
	        stalkerwidth = document.floater.clip.width;
	        stalkerheight = document.floater.clip.height;
	        if( (x > stalkerx && x < (stalkerx+stalkerwidth)) && (y > stalkery && y < (stalkery+stalkerheight)))
				return true;
	        else
				return false;
	}
	function grabIt(e)
	{
		if(IE)
		{
			whichIt = event.srcElement;
			while (whichIt.id.indexOf("floater") == -1)
			{
				whichIt = whichIt.parentElement;
				if (whichIt == null){ return true; }
			}
			whichIt.style.pixelLeft = whichIt.offsetLeft;
		    whichIt.style.pixelTop = whichIt.offsetTop;
			currentX = (event.clientX + document.body.scrollLeft);
	   		currentY = (event.clientY + document.body.scrollTop);
		}
		else
		{
	        window.captureEvents(Event.MOUSEMOVE);
	        if(checkFocus (e.pageX,e.pageY))
			{
	                whichIt = document.floater;
	                StalkerTouchedX = e.pageX-document.floater.pageX;
	                StalkerTouchedY = e.pageY-document.floater.pageY;
			}
		}
	    return true;
		}
	function moveIt(e)
	{
		if (whichIt == null) { return false; }
		if(IE)
		{
		    newX = (event.clientX + document.body.scrollLeft);
		    newY = (event.clientY + document.body.scrollTop);
		    distanceX = (newX - currentX);    distanceY = (newY - currentY);
		    currentX = newX;    currentY = newY;
		    whichIt.style.pixelLeft += distanceX;
		    whichIt.style.pixelTop += distanceY;
			if(whichIt.style.pixelTop < document.body.scrollTop) whichIt.style.pixelTop = document.body.scrollTop;
			if(whichIt.style.pixelLeft < document.body.scrollLeft) whichIt.style.pixelLeft = document.body.scrollLeft;
			if(whichIt.style.pixelLeft > document.body.offsetWidth - document.body.scrollLeft - whichIt.style.pixelWidth - 20) whichIt.style.pixelLeft = document.body.offsetWidth - whichIt.style.pixelWidth - 20;
			if(whichIt.style.pixelTop > document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5) whichIt.style.pixelTop = document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5;
			event.returnValue = false;
		}
		else
		{
			whichIt.moveTo(e.pageX-StalkerTouchedX,e.pageY-StalkerTouchedY);
	        if(whichIt.left < 0+self.pageXOffset) whichIt.left = 0+self.pageXOffset;
	        if(whichIt.top < 0+self.pageYOffset) whichIt.top = 0+self.pageYOffset;
	        if( (whichIt.left + whichIt.clip.width) >= (window.innerWidth+self.pageXOffset-17)) whichIt.left = ((window.innerWidth+self.pageXOffset)-whichIt.clip.width)-17;
	        if( (whichIt.top + whichIt.clip.height) >= (window.innerHeight+self.pageYOffset-17)) whichIt.top = ((window.innerHeight+self.pageYOffset)-whichIt.clip.height)-17;
	        return false;
		}
	    return false;
		}
	function dropIt()
	{
	whichIt = null;
	    if(NS) window.releaseEvents (Event.MOUSEMOVE);
	    return true;
	}
	if(NS)
	{
		window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN);
		window.onmousedown = grabIt;
	 	window.onmousemove = moveIt;
		window.onmouseup = dropIt;
	}
	if(IE)
	{
		document.onmousedown = grabIt;
	 	document.onmousemove = moveIt;
		document.onmouseup = dropIt;
	}
	if(NS || IE)
		action = window.setInterval("heartBeat()",1);
</Script>
<DIV align=center id=floater>
 <TABLE height=10 width=24>
  <TBODY>
   <TR>
    <TD align=middle height=6 vAlign=center width=76>
      <img src="//ku.shouce.ren/files/images/201601/56a34ab9db31d.jpg" width="170" height="113"  border=0 style="cursor:pointer">
    </TD>
   </TR>
  </TBODY>
 </TABLE>
</DIV>
</body>
</html>

CSS代码

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JS代码

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简介

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名称

鼠标左右拖动图片，JS已限制不能垂直拖动

分类

鼠标特效

描述

Js鼠标特效，限制一张图片只允许在水平方向上被拖动，垂直方向已被禁止，你试下就明白了，即使上下拖动图片，图片也只会感受左右受力的方向改变。