Learn JavaScript mouse response events_javascript skills-JS Tutorial-php.cn

Learn JavaScript mouse response events_javascript skills

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Release： 2016-05-16 15:23:41

Original

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This article shares a simple mouse simulation case for your reference. The specific implementation content is as follows
How to implement the capture mouse event. When the mouse slides, obtain the coordinates of the current mouse, and then bind the capture displacement in a transparent area, so that the mouse sliding model can be implemented in the simulated transparent area.

Rendering:

HTML code:

<!DOCTYPE html>
<html >
 <head>
 <meta charset="UTF-8">
 <title> the mouse </title>
 <link rel="stylesheet" href="css/new.css">
 </head>
 <body>
 <div class="main">
 <div class="content">
 <div class="content-nav-top">
  <span onclick = 'koringz.createclick1(0)'>默认</span>
  <span onclick = 'koringz.createclick1(50)'>圆</span>
 </div>
 <div class="content-nav-left">
  <span onclick = 'koringz.createclick2 (0.25) '>0.25</span>
  <span onclick = 'koringz.createclick2 (0.5) '>0.5</span>
  <span onclick = 'koringz.createclick2 (0.75)'>0.75</span>
  <span onclick = 'koringz.createclick2 (1) '>1</span>
 </div>
 <div class="box">鼠标感应器(the mouse sensor)</div>
 <div class="block">
  <div class='block_case'></div>
 </div>
 </div>
 </div>
 <script type="text/javascript" src="js/demo.min/demo.min.js"></script>
 </body>
</html>

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CSS code:

* {
 margin: 0;
 padding: 0;
 box-sizing: border-box;
}
body {
 position: absolute;
 text-align: center;
 height: 100%;
 width: 100%;
}
.main{
 position: relative;
 margin: 0 auto;
 height: 100%;
 background-color: rgb(48, 70, 82)
}
.main .content{
 position:absolute;
 display: inline-block;
 top:50%;
 left:50%;
 margin-left: -300px;
 margin-top: -150px;
 width: 600px;
 height: 300px;
 line-height: 300px;
 /*overflow: hidden;*/
 background: radial-gradient(ellipse farthest-corner, rgb(115, 176, 198) 0%, #888 100%);
 background: -webkit-radial-gradient(ellipse farthest-corner, rgb(115, 176, 198) 0%, #888 100%);
 box-shadow: 2px 3px 8px rgba(67, 50, 124 ,.6),0px 0px 8px rgba(67, 50, 124 ,.6);
}
.main .content .content-nav-top{
 display: none;
 position: absolute;
 margin-top: -50px;
 height: 50px;
 width: 300px; 
}
.main .content .content-nav-top >span{
 display: block;
 float: left;
 font-size: 16px;
 font-weight: normal;
 margin-right:1px;
 width: 50px;
 height: 50px; 
 line-height: 50px; 
 background-color: rgba(251, 214, 146,.3); 
 box-shadow: 0px 4px 13px rgb(222,222,222,1);
 cursor: pointer;
}
.main .content .content-nav-top >span:nth-child(1){
 border-radius:0 ; 
}
.main .content .content-nav-top >span:nth-child(2){
 border-radius:50% ; 
}
.main .content .content-nav-top >span:nth-child(3){
 border-radius:0; 
}
.main .content .content-nav-top >span:nth-child(4){
 border-radius: 50% ; 
}
.main .content .content-nav-left{
 display: none;
 position: absolute;
 margin-left: -50px;
 width: 50px;
 height: 300px; 
}
.main .content .content-nav-left >span{
 display: block;
 font-size: 16px;
 font-weight: normal;
 margin-bottom:1px;
 width: 50px;
 height: 50px; 
 line-height: 50px; 
 background-color: rgb(85, 145, 140); 
 box-shadow: 0px 4px 13px rgb(222,222,222,1);
 border-radius:50% 0 0 50% ; 
 cursor: pointer;
}
.box{
 position: relative;
 float: left;
 width: 49.9%;
 height: 100%;
 border-right-style: solid;
 border-right-width: 1px;
 border-right-color: rgba(211,211,211,.5);
 color:rgb(99, 84, 168);
 text-shadow: 0px 1px 0px #888,1px 0px 0px #888,0px 0px 1px #888;
 }
.block{
 float: right;
 width: 50%;
 height: 100%;
}

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JS code:

var koringz = (function(){ 
 var x,
 y,
 getmain,
 getcontent,
 getbox,
 getblock,
 getblock_case,
 getnav_top,
 block_case_margin_top,
 block_case_margin_left,
 block_casetostring1,
 block_casetostring2,
 block_casesubstring1,
 block_casesubstring2,
 istouch;
 getmain = document.querySelector('.main');
 getcontent = getmain.querySelector('.content');
 getbox = getcontent.querySelector('.box');
 getblock = getcontent.querySelector('.block');
 getblock_case = getblock.querySelector('.block_case');
 getnav_top = getcontent.querySelector('.content-nav-top');
 getnav_left = getcontent.querySelector('.content-nav-left');
 function get_box() {
 w_getbox_distance = getbox.offsetWidth;
 h_getbox_distance = getbox.offsetHeight;
 istouch = 'ontouchstart' in window;
 getbox.addEventListener(istouch&#63;'touchmove':'mousemove',mouseevent,false);
 getbox.addEventListener(istouch&#63;'touchmove':'mousemove',nav,false)
 }
 function nav () {
 return new_nav();
 }
 var new_nav = function () {
 getnav_top.style.display = 'block';
 getnav_left.style.display = 'block';
 }
 function move_box() {
 getblock_case.style.width = '0px';
 getblock_case.style.height = '0px';
 block_case_margin_left = getblock_case.style.marginLeft = getblock.offsetWidth/2 + 'px';//子节点
 block_case_margin_top = getblock_case.style.marginTop = getblock.offsetHeight/2 + 'px';
 block_casetostring1 = block_case_margin_left.toString();//值转化为字符串
 block_casetostring2 = block_case_margin_top.toString();
 block_casesubstring1 = block_casetostring1.substring(0,3);
 block_casesubstring2 = block_casetostring2.substring(0,3); 
 }
 var mouseevent = function () {
 mouseEvent(event);
 }
 function mouseEvent(e){
 var zore = 0,
  val = 1;
 if(istouch){
  x = e.touches[zore].pageX;
  y = e.touches[zore].pageY;
  e.preventDefault();
 }
 else if(!istouch){
  x = w_getbox_distance/2 != undefined &#63; e.offsetX:e.layerX;
  y = h_getbox_distance/2 != undefined &#63; e.offsetY:e.layerY;
 } 
 if(val = true){
  getblock_case.style.width = x + 'px';//获得了mouse划过的位置
  getblock_case.style.height = y + 'px';
  getblock_case.style.marginLeft = (block_casesubstring1-x/2) +'px';
  getblock_case.style.marginTop = (block_casesubstring2-y/2) +'px';
  getblock_case.style.backgroundColor = "rgba(147, 106, 77,1)";
 }
 }
 (function (){
  window.onload = function(){
  move_box();
  get_box()
  }
 })()
 var click =function () {
 this.borderradius = function(num) {
  if(typeof num == 'number'){
  if(num == 0){
   getblock_case.style.borderRadius = num;
  }
  else if(num > 0){
   getblock_case.style.borderRadius = num +'%';
  }
  else{
   return false;
  }
  }
 }
 this.opacitas = function (num) {
  if(typeof num == 'number'){
  getblock_case.style.opacity = num;
  }
  else{
  return false;
  }
 }
 }
 var Click = new click();
 return {
 createclick1 :Click.borderradius,
 createclick2 :Click.opacitas
 }
})()

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The mouse arrows here can also be replaced with your favorite icons. The color of the simulated mouse area can also be changed freely. The effects of the simulated area can also be dotted, linear, animated, etc. This freedom Play it.
The above is a detailed introduction to JavaScript mouse response events. I hope it will be helpful to everyone's learning.