HTML5比较前后滑块

Question

有很多“前后比较滑块”。 我有兴趣改进它。

是否可以在不单击的情况下滑动图像？ 我的意思是，除数（dragger）将链接到鼠标。 当用户仅将鼠标悬停时（无需像现在一样单击和拖动），幻灯片将被更改。

这里是参考：

https://codepen.io/dudleystorey/pen/HkwBo

https://codyhouse.co/gem/css-jquery-image-comparison-slider （点击演示）

<div id="comparison">
  <figure>
    <div id="divisor"></div>
  </figure>
  <input type="range" min="0" max="100" value="50" id="slider" oninput="moveDivisor()">
</div>


/**CSS**/
div#comparison { 
  width: 60vw;
  height: 60vw;
  max-width: 600px;
  max-height: 600px;
  overflow: hidden; 
}
div#comparison figure { 
  background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/4273/photoshop-face-before.jpg); 
  background-size: cover;
  position: relative;
  font-size: 0;
  width: 100%; 
  height: 100%;
  margin: 0; 
}
div#comparison figure > img { 
  position: relative;
  width: 100%;
}
div#comparison figure div { 
  background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/4273/photoshop-face-after.jpg);
  background-size: cover;
  position: absolute;
  width: 50%; 
  box-shadow: 0 5px 10px -2px rgba(0,0,0,0.3);
  overflow: hidden;
  bottom: 0;
  height: 100%;
}

input[type=range]{
  -webkit-appearance:none;
  -moz-appearance:none;
  position: relative;
  top: -2rem; left: -2%;
  background-color: rgba(255,255,255,0.1);
  width: 102%; 
}
input[type=range]:focus { 
  outline: none; 
}
input[type=range]:active { 
  outline: none;  
}

input[type=range]::-moz-range-track { 
  -moz-appearance:none;
    height:15px;
    width: 98%;
    background-color: rgba(255,255,255,0.1); 
    position: relative;
    outline: none;    
 }
input[type=range]::active { 
  border: none; 
  outline: none;
}
input[type=range]::-webkit-slider-thumb {
    -webkit-appearance:none;
    width: 20px; height: 15px;   
    background: #fff;
    border-radius: 0;
}
input[type=range]::-moz-range-thumb {
  -moz-appearance: none;
  width: 20px;
  height: 15px;
  background: #fff;
  border-radius: 0;
}   
input[type=range]:focus::-webkit-slider-thumb {
    background: rgba(255,255,255,0.5);
}
input[type=range]:focus::-moz-range-thumb {
    background: rgba(255,255,255,0.5);
}


/**JS**/
var divisor = document.getElementById("divisor"),
slider = document.getElementById("slider");
function moveDivisor() { 
    divisor.style.width = slider.value+"%";
}

Answer 1

是的-这在图形比较站点和Buzzfeed / ClickHole之类的地方已经非常普遍。

我已修改您的CodePen演示以使用mousemove事件，因此不需要单击/拖动：

 var divisor = document.getElementById("divisor"); var comparisonWidth = document.getElementById("comparison").clientWidth; function moveDivisor(e) { divisor.style.width = (e.offsetX * 100 / comparisonWidth) + "%"; } 

 div#comparison { width: 60vw; height: 60vw; max-width: 600px; max-height: 600px; overflow: hidden; } div#comparison figure { background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/4273/photoshop-face-before.jpg); background-size: cover; position: relative; font-size: 0; width: 100%; height: 100%; margin: 0; } div#comparison figure>img { position: relative; width: 100%; } div#comparison figure div { background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/4273/photoshop-face-after.jpg); background-size: cover; position: absolute; width: 50%; box-shadow: 0 5px 10px -2px rgba(0, 0, 0, 0.3); overflow: hidden; bottom: 0; height: 100%; } 

 <div id="comparison" onmousemove="moveDivisor(event)"> <figure> <div id="divisor"></div> </figure> </div>