How to implement flash-like scrolling playback of images using javascript html5

Home

Web Front-end

JS Tutorial

How to implement flash-like scrolling playback of images using javascript html5_javascript skills

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

May 16, 2016 pm 04:02 PM

html5 javascript

The example in this article describes how to implement flash-like scrolling playback of images using javascript html5. Share it with everyone for your reference. The details are as follows:

html part:

<!DOCTYPE html> 
<html> 
<head lang="en"> 
 <meta charset="UTF-8"> 
 <title></title> 
 <script src="move.js" type="text/javascript"></script> 
 <link href="css.css" type="text/css" rel="stylesheet"> 
</head> 
<body> 
<div id="playImages" class="play"> 
 <ul class="big_pic"> 
  <div class="prev"></div> 
  <div class="next"></div> 
  <a class="mark_left" href="javascript:;"></a> 
  <a class="mark_right" href="javascript:;"></a> 
  <li style="z-index: 1"><img src="image/1.JPG"></li> 
  <li><img src="image/2.JPG"></li> 
  <li><img src="image/3.JPG"></li> 
  <li><img src="image/4.JPG"></li> 
  <li><img src="image/5.JPG"></li> 
  <li><img src="image/6.JPG"></li> 
 </ul> 
 <div class="small_pic"> 
  <ul> 
   <li><img src="image/1.JPG"></li> 
   <li><img src="image/2.JPG"></li> 
   <li><img src="image/3.JPG"></li> 
   <li><img src="image/4.JPG"></li> 
   <li><img src="image/5.JPG"></li> 
   <li><img src="image/6.JPG"></li> 
  </ul> 
 </div> 
</div> 
</body> 
</html>

Copy after login

css part:

body{ margin: 0px; padding: 0px; }
ul{ margin: 0px; padding: 0px; }
li{ list-style: none; } 
.play{ width: 600px; height: 550px; left: 30px; top: 20px;
position: relative; border: 2px solid black;
} 
.big_pic{ width: 600px; height: 400px; position: relative;
background: snow; overflow: hidden;
} 
.big_pic li{ width: 600px; height: 400px; overflow:hidden;
position: absolute; background: black; z-index: 0
} 
.big_pic li img{ width: 600px; height: 400px;
position: absolute;
} 
.mark_left{ width: 300px; height: 400px;
background: orange; position: absolute; left: 0px; top: 0px;
z-index: 3000; filter: alpha(opacity:0); opacity: 0;
} 
.mark_right{ width: 300px; height: 400px; background: cornflowerblue;
position: absolute; left: 300px; top: 0px;
z-index: 3000; filter: alpha(opacity:0); opacity: 0;
} 
.prev{ width: 60px; height: 60px; 
background: url(image/btn.gif) no-repeat; position: absolute; 
z-index: 3001; top: 170px; left: 10px; cursor: pointer; 
filter: alpha(opacity:0); opacity: 0;
} 
.next{ width: 60px; height: 60px; 
background: url(image/btn.gif) no-repeat 0 -60px; 
position: absolute; z-index: 3001; top: 170px; right: 10px;
cursor: pointer; filter: alpha(opacity:0); opacity: 0;
} 
.small_pic{ width: 594px; height: 144px; 
position: relative;top: 0;left: 0;
border: 3px solid paleturquoise;overflow: hidden;
} 
.small_pic ul{ width: 594px; height: 144px; 
position: absolute; left: 0px;top: 0px;
} 
.small_pic li img{ width: 194px; height: 140px; } 
.small_pic ul li{ border:2px solid paleturquoise;
width: 194px; height: 140px; float: left;
cursor: pointer; filter: alpha(opacity:60); opacity: 0.6;
}

Copy after login

JS part:

window.onload=function(){ 
 var oPlay=document.getElementById('playImages'); 
 var uBig=getClass(oPlay,'big_pic')[0]; 
 var uSmall=getClass(oPlay,'small_pic')[0]; 
 var oPrev=getClass(oPlay,'prev')[0]; 
 var oNext=getClass(oPlay,'next')[0]; 
 var aLeft=getClass(oPlay,'mark_left')[0]; 
 var aRight=getClass(oPlay,'mark_right')[0]; 
 var oUlSmall=uSmall.getElementsByTagName('ul')[0]; 
 var oSli=uSmall.getElementsByTagName('li'); 
 var oBli=uBig.getElementsByTagName('li'); 
 oUlSmall.style.width=oSli[0].offsetWidth*oSli.length+'px'; 
 oPrev.onmouseover=aLeft.onmouseover=function(){ 
  move(oPrev,100,'opacity'); 
 }; 
 oPrev.onmouseout=aLeft.onmouseout=function(){ 
  move(oPrev,0,'opacity'); 
 }; 
 oNext.onmouseover=aRight.onmouseover=function(){ 
  move(oNext,100,'opacity'); 
 }; 
 oNext.onmouseout=aRight.onmouseout=function(){ 
  move(oNext,0,'opacity'); 
 }; 
 var index=0; 
 var newZIndex=2; 
 for (var i=0;i<oSli.length;i++){ 
  oSli[i].num=i; 
  oSli[i].onclick=function(){ 
   if(this.num==index) { 
    return; 
   } else{ 
    index=this.num; 
    tab(); 
   } 
  }; 
  oSli[i].onmouseover=function(){ 
   move(this,100,'opacity'); 
  }; 
  oSli[i].onmouseout=function(){ 
   if(this.num!=index){ 
    move(this,60,'opacity'); 
   } 
  }; 
 } 
 oPrev.onclick=function(){ 
  index--; 
  if(index==-1){ 
   index=oSli.length-1; 
  } 
  tab(); 
 }; 
 oNext.onclick=function(){ 
  index++; 
  if(index==oBli.length){ 
   index=0; 
  } 
  tab(); 
 }; 
 function tab() { 
  oBli[index].style.height = 0; 
  oBli[index].style.zIndex = newZIndex++; 
  move(oBli[index], 400, 'height'); 
  for (var i = 0; i < oSli.length; i++) { 
   move(oSli[i], 60, 'opacity'); 
  } 
  move(oSli[index], 100, 'opacity'); 
  if (index == 0) { 
   move(oUlSmall, 0, 'left'); 
  } else if (index == oSli.length - 1) { 
   move(oUlSmall, -(index - 2) * oSli[0].offsetWidth, 'left'); 
  } else { 
   move(oUlSmall, -(index - 1) * oSli[0].offsetWidth, 'left'); 
  } 
 }; 
 var timer=setInterval(oNext.onclick,3000);; 
 oPlay.onmouseover=function(){ 
  clearInterval(timer); 
 }; 
 oPlay.onmouseout=function(){ 
  timer=setInterval(oNext.onclick,3000); 
 }; 
}; 
function getStyle(obj,name){ 
 if(obj.currentStyle){ 
  return obj.currentStyle[name]; 
 }else{ 
  return getComputedStyle(obj,false)[name]; 
 } 
}; 
function move(obj,iTarget,name){ 
 clearInterval(obj.timer); 
 obj.timer=setInterval(function(){ 
  var cur=0; 
  if(name=='opacity'){ 
   cur=Math.round(parseFloat(getStyle(obj,name))*100); 
  }else{ 
   cur=parseInt(getStyle(obj,name)); 
  } 
  var speed=(iTarget-cur)/30; 
  speed=speed>0&#63;Math.ceil(speed):Math.floor(speed); 
  if(cur==iTarget){ 
   clearInterval(obj.timer); 
  }else{ 
   if(name=='opacity'){ 
    obj.style.opacity=(cur+speed)/100; 
    obj.style.filter='alpha(opacity:'+cur+speed+')'; 
   }else{ 
    obj.style[name]=cur+speed+"px"; 
   } 
  } 
 },30); 
}; 
function getClass(oParent,name){ 
 var oArray=[]; 
 var oBj=oParent.getElementsByTagName('*'); 
 for(var i=0;i<oBj.length;i++){ 
  if(oBj[i].className==name){ 
   oArray.push(oBj[i]); 
  } 
 } 
 return oArray; 
}

Copy after login

I hope this article will be helpful to everyone’s JavaScript programming design.

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn