JS responds to mouse clicks to achieve dragging effect between two sliders

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JS responds to mouse clicks to achieve dragging effect between two sliders_javascript skills

May 16, 2016 pm 03:35 PM

js drag slider

The example in this article describes the two slider interval dragging effect codes implemented in JS. Share it with everyone for your reference, the details are as follows:

How to implement the slider function on the web page? In fact, just use JS. This is a web page slider. The two sliders can be dragged arbitrarily to form a slider range. The code is compatible with IE and other mainstream browsers. The two sliders determine an range.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/js-hkqj-td-style-codes/

The specific code is as follows:

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
&lt;meta charset="utf-8" /&gt;
&lt;title&gt; js双滑块区间&lt;/title&gt;
&lt;style type='text/css'&gt;
#range{position:relative;width:148px;height:2px;font-size:0;line-height:0;background:#fff;border:1px inset #9C9B97}
#meaBox{position:absolute;width:148px;height:4px;background:#ccc;top:-2px;border:1px inset #9C9B97;border-left:0;border-right:0;}
.mea{position:absolute;top:-5px;width:2px;height:10px;border:3px solid #fff;border-top:13px solid #3f8e55;}
#mea_l{left:0;}
#mea_r{right:0;border-top:13px solid #ff0000;}
&lt;/style&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;div id='range'&gt;
 &lt;div id='meaBox' onmousedown="change(this,event)"&gt; &lt;/div&gt;
 &lt;div id='mea_l' class='mea' onmousedown="change(this,event)" &gt;&lt;/div&gt;
 &lt;div id='mea_r' class='mea' onmousedown="change(this,event)" &gt;&lt;/div&gt;
&lt;/div&gt;
&lt;script type='text/javascript'&gt;
var $id=function(o){return document.getElementById(o) || o;}
var change=function(o,e){
 var e = e &#63; e : window.event;
 if(!window.event) {e.preventDefault();}
 var init={
 mX: o.offsetLeft,
 lX: $id('mea_l').offsetLeft,
 rX: $id('mea_r').offsetLeft,
 dX: e.clientX
 };
 document.onmousemove=function(e){
 var e = e &#63; e : window.event;
 var dist=e.clientX-init.dX,
  len=init.mX + dist,
  l_x=init.lX,
  r_x=init.rX;
 switch (o.id){
  case 'mea_l':
  l_x=init.lX + dist;
  move();
  break;
  case 'mea_r':
  r_x=init.rX + dist;
  move();
  break;
  case 'meaBox':
  l_x=init.lX + dist;
  r_x=init.rX + dist;
  move2();
  break;
  default: break;
 }
 function move(){
  if(r_x &gt; l_x + 20 && len&gt;=0 && len&lt;=140 ) {
  o.style.left=len+"px";
  $id('meaBox').style.left= l_x + 'px';
  $id('meaBox').style.width=r_x - l_x + 'px';
  }
 };
 function move2(){
  if(l_x&gt;=0 && r_x &lt;=140 ) {
  o.style.left=len+"px";
  $id('mea_l').style.left= l_x + "px";
  $id('mea_r').style.left= r_x +"px";
  }
 };
 }
 document.onmouseup=function(){
 document.onmousemove=null;
 document.onmouseup=null;
 }
}
&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;

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I hope this article will be helpful to everyone in JavaScript programming.

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