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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>CSS+JS的拖动滑块实现价格区间搜索效果丨石家庄地毯|河北冷风机厂家</title> <style> #dragbar{position:relative; width:170px; top:26px; float:left;} #long_bar{ height:0.6em; border:1px solid #aaa; border-radius:4px;} #small_bar{ background:#ccc; position:absolute; z-index:1; top:1px; height:0.6em; line-height:0.6em; overflow:hidden;} #long_bar .btn{ width:1.2em; z-index:2; position:absolute; height:1.2em; cursor:pointer; top:-0.3em; margin-left:-0.6em; background:#D72D2E; border-radius:4px; border:1px solid #D3D3D3;} .price{ width:100px; padding:22px 5px 0; height:18px; color:#c90202; float:left; text-align:center;} </style> </head> <body> <div id="min_price" class="price" style="margin-right:5px;">100元</div> <div id="dragbar"> <div id="long_bar"> <div id="small_bar"></div> <span class="btn"></span> <span class="btn"></span> </div> </div> <div id="max_price" class="price" style="margin-left:5px;">1319元</div> </body> <script> window.onload=function(){ var longbar=document.getElementById("long_bar"); var smallbar=document.getElementById("small_bar"); var arrbtn=longbar.getElementsByTagName("span"); var minP=document.getElementById("min_price"); var maxP=document.getElementById("max_price"); var minprice=parseInt(minP.innerHTML); var maxprice=parseInt(maxP.innerHTML); var total=maxprice-minprice,Isclick=false,zindex=2; smallbar.style.width=100+"%"; smallbar.style.left=0; arrbtn[0].style.left=0; arrbtn[1].style.left=100+"%"; var maxwidth=longbar.offsetWidth;//最大移动值 arrbtn[0].onmousedown=function(e){ Isclick=true; this.style.zIndex=++zindex; var x=(e||window.event).clientX;//取点击位置的X轴长度值 //按钮的x轴长度值 var lenght=this.offsetLeft+(this.offsetWidth/2-1); var btn2lenght=arrbtn[1].offsetLeft+(arrbtn[1].offsetWidth/2-1); var maxlenght=Math.min(maxwidth,btn2lenght); var btn=this; document.onmousemove=function(e){ if(Isclick) { var thisX=(e||window.event).clientX;//当前移动位置的X轴长度值 var golenght=Math.min(maxlenght,Math.max(0,lenght+(thisX-x)));//移动的长度 var leftVal=(golenght/maxwidth)*100; btn.style.left=leftVal+"%";//使用百分比 smallbar.style.left=btn.style.left; smallwidth(); price(minP,leftVal); } else { return false; } //window.getSelection ? window.getSelection.removeAllRanges : document.selection.empty;//判断是否有选中项 } document.onmouseup=window.onblur=btn.onlosecapture=function() { Isclick=false; btn.releaseCapture && btn.releaseCapture(); }; this.setCapture && this.setCapture(); return false; } arrbtn[1].onmousedown=function(e){ Isclick=true; this.style.zIndex=++zindex; var x=(e||window.event).clientX; var lenght=this.offsetLeft+(this.offsetWidth/2-1); var btn1lenght=arrbtn[0].offsetLeft+(arrbtn[0].offsetWidth/2-1); var minlenght=Math.max(0,btn1lenght); var btn1=this; document.onmousemove=function(e){ if(Isclick) { var thisX=(e||window.event).clientX; var golenght=Math.max(minlenght,Math.min(maxwidth,lenght+(thisX-x))); var leftVal=(golenght/maxwidth)*100; btn1.style.left=leftVal+"%"; smallwidth(); price(maxP,leftVal); } else { return false; } //window.getSelection ? window.getSelection.removeAllRanges : document.selection.empty; } document.onmouseup=window.onblur=btn1.onlosecapture=function() { Isclick=false; btn1.releaseCapture && btn1.releaseCapture(); }; this.setCapture && this.setCapture(); return false; } function smallwidth(){ var left=parseFloat(arrbtn[0].style.left); var right=parseFloat(arrbtn[1].style.left); smallbar.style.width=(right-left>0?Math.floor(right-left):0)+"%"; } function price(obj,leftVal){ var p=parseInt((total/100)*leftVal)+minprice; if(p>minprice && p<maxprice){p=p%5>3?p+(5-(p%5)):p-(p%5)} obj.innerHTML=p+"元"; } } </script> </html> <br><br><hr>
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原文地址：http://www.cnblogs.com/youtianxia/p/4529930.html
