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js to realize dragging slider and clicking water ripple effect

青灯夜游

Oct 16, 2018 am 09:28 AM

This article will introduce to you how to use js to achieve the effect of dragging the slider and clicking on the water ripple effect. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

The effect of dragging the slider:

Let’s take a look at the effect picture first:

nbsp;html>


    
        <meta>
        <meta>
        <title>Document</title>
        <script></script>

        <style>
            input[type="range"] {
                width: 80%;
                background-color: red;
                border-radius: 15px;
                -webkit-appearance: none;
                height: 1px;
                position: relative;
                -webkit-box-sizing: border-box;
                -moz-box-sizing: border-box;
                box-sizing: border-box;
            }

            input[type="range"]::-webkit-slider-thumb {
                -webkit-appearance: none;
                background-color: green;
                border-radius: 50%;
                height: 30px;
                width: 30px;
                box-shadow: 0 1px 3px rgba(0, 0, 0, .4);
                border: none;
                position: relative;
                z-index: 10;
            }
        </style>
        <script>
            $(function() {
                $(".input_1").change(function() {
                    $("p.p1").text($(this).val());
                })

                setInterval(function() {
                    $("p.p2").text($(".input_2").val());
                }, 0.01)
            })
        </script>
    

    
        <p>添加change事件</p>
        <input>
        <p>0</p>
        <p>添加定时器</p>
        <input>
        <p>0</p>

nbsp;html>



<meta>
<meta>
<title>鼠标拖动小方块</title>
<style>
.lineDiv {
position: relative;
height: 5px;
background: red;
width: 300px;
margin: 50px auto;
}

.lineDiv .minDiv {
position: absolute;
top: -5px;
left: 0;
width: 15px;
height: 15px;
background: green;
cursor: pointer
}

.lineDiv .minDiv .vals {
position: absolute;
font-size: 20px;
top: -45px;
left: -10px;
width: 35px;
height: 35px;
line-height: 35px;
text-align: center;
background: blue;
}

.lineDiv .minDiv .vals:after {
content: "";
width: 0px;
height: 0px;
border-top: 6px solid blue;
border-left: 6px solid transparent;
border-right: 6px solid transparent;
border-bottom: 6px solid transparent;
display: block;
margin-left: 11px;
}
</style>



<center>
<h3 id="用鼠标拖动小方块-span-span">用鼠标拖动小方块<span>0</span>%</h3>
</center>
<div>
<div>
<div>0</div>
</div>
</div>
<script>
window.onload = function() {

var lineDiv = document.getElementById(&#39;lineDiv&#39;); //长线条
var minDiv = document.getElementById(&#39;minDiv&#39;); //小方块
var msg = document.getElementById("msg");
var vals = document.getElementById("vals");
var ifBool = false; //判断鼠标是否按下

//鼠标按下方块
minDiv.addEventListener("touchstart", function(e) {
e.stopPropagation();
ifBool = true;
console.log("鼠标按下")
});

//拖动
window.addEventListener("touchmove", function(e) {
console.log("鼠标拖动")
if(ifBool) {
var x = e.touches[0].pageX || e.touches[0].clientX; //鼠标横坐标var x
var lineDiv_left = getPosition(lineDiv).left; //长线条的横坐标
var minDiv_left = x - lineDiv_left; //小方块相对于父元素（长线条）的left值 
if(minDiv_left >= lineDiv.offsetWidth - 15) {
minDiv_left = lineDiv.offsetWidth - 15;
}
if(minDiv_left < 0) {
minDiv_left = 0;
}
//设置拖动后小方块的left值
minDiv.style.left = minDiv_left + "px";
msg.innerText = parseInt((minDiv_left / (lineDiv.offsetWidth - 15)) * 100);
vals.innerText = parseInt((minDiv_left / (lineDiv.offsetWidth - 15)) * 100);
}
});
//鼠标松开
window.addEventListener("touchend", function(e) {
console.log("鼠标弹起")
ifBool = false;
});
//获取元素的绝对位置
function getPosition(node) {
var left = node.offsetLeft; //获取元素相对于其父元素的left值var left
var top = node.offsetTop;
current = node.offsetParent; // 取得元素的offsetParent
　 // 一直循环直到根元素
　　
while(current != null) {　　
left += current.offsetLeft;　　
top += current.offsetTop;　　
current = current.offsetParent;　　
}
return {
"left": left,
"top": top
};
}
}
</script>

Compatible with PC and mobile terminals

nbsp;html>



<meta>
<meta>
<title>鼠标拖动小方块</title>
<style>
.lineDiv {
position: relative;
height: 5px;
background: red;
width: 300px;
margin: 50px auto;
}

.lineDiv .minDiv {
position: absolute;
top: -5px;
left: 0;
width: 15px;
height: 15px;
background: green;
cursor: pointer
}

.lineDiv .minDiv .vals {
position: absolute;
font-size: 20px;
top: -45px;
left: -10px;
width: 35px;
height: 35px;
line-height: 35px;
text-align: center;
background: blue;
}

.lineDiv .minDiv .vals:after {
content: "";
width: 0px;
height: 0px;
border-top: 6px solid blue;
border-left: 6px solid transparent;
border-right: 6px solid transparent;
border-bottom: 6px solid transparent;
display: block;
margin-left: 11px;
}
</style>



<center>
<h3 id="用鼠标拖动小方块-span-span">用鼠标拖动小方块<span>0</span>%</h3>
</center>
<div>
<div>
<div>0</div>
</div>
</div>
<script>
window.onload = function() {

var lineDiv = document.getElementById(&#39;lineDiv&#39;); //长线条
var minDiv = document.getElementById(&#39;minDiv&#39;); //小方块
var msg = document.getElementById("msg");
var vals = document.getElementById("vals");
var ifBool = false; //判断鼠标是否按下
//事件
var start = function(e) {
e.stopPropagation();
ifBool = true;
console.log("鼠标按下")
}
var move = function(e) {
console.log("鼠标拖动")
if(ifBool) {
if(!e.touches) {    //兼容移动端
var x = e.clientX;
} else {     //兼容PC端
var x = e.touches[0].pageX;
}
//var x = e.touches[0].pageX || e.clientX; //鼠标横坐标var x
var lineDiv_left = getPosition(lineDiv).left; //长线条的横坐标
var minDiv_left = x - lineDiv_left; //小方块相对于父元素（长线条）的left值 
if(minDiv_left >= lineDiv.offsetWidth - 15) {
minDiv_left = lineDiv.offsetWidth - 15;
}
if(minDiv_left < 0) {
minDiv_left = 0;
}
//设置拖动后小方块的left值
minDiv.style.left = minDiv_left + "px";
msg.innerText = parseInt((minDiv_left / (lineDiv.offsetWidth - 15)) * 100);
vals.innerText = parseInt((minDiv_left / (lineDiv.offsetWidth - 15)) * 100);
}
}
var end = function(e) {
console.log("鼠标弹起")
ifBool = false;
}
//鼠标按下方块
minDiv.addEventListener("touchstart", start);
minDiv.addEventListener("mousedown", start);
//拖动
window.addEventListener("touchmove", move);
window.addEventListener("mousemove", move);
//鼠标松开
window.addEventListener("touchend", end);
window.addEventListener("mouseup", end);
//获取元素的绝对位置
function getPosition(node) {
var left = node.offsetLeft; //获取元素相对于其父元素的left值var left
var top = node.offsetTop;
current = node.offsetParent; // 取得元素的offsetParent
　 // 一直循环直到根元素
　　
while(current != null) {　　
left += current.offsetLeft;　　
top += current.offsetTop;　　
current = current.offsetParent;　　
}
return {
"left": left,
"top": top
};
}
}
</script>

Settings The sliding range of the slider

nbsp;html>


<meta>
<meta>
<title>鼠标拖动小方块</title>
<style>
.lineDiv {
position: relative;
height: 5px;
background: red;
width: 95%;
margin: 50px auto;
}

.lineDiv .minDiv {
position: absolute;
top: -15px;
left: 0;
width: 35px;
height: 35px;
background: green;
cursor: pointer;
transition: all 0s;
}

.lineDiv .vals {
z-index: 100;
position: absolute;
top: 0px;
left: 0px;
width: 0px;
height: 5px;
background: blue;
}
</style>



<center>
<h3 id="用鼠标拖动小方块-span-span">用鼠标拖动小方块<span>0</span>%</h3>
</center>
<div>
<div></div>
<!--  -->
<div></div>
<!-- -->
</div>
<script>
window.onload = function() {

var lineDiv = document.getElementById(&#39;lineDiv&#39;); //长线条
var minDiv = document.getElementById(&#39;minDiv&#39;); //小方块
var minVals = document.getElementById(&#39;vals&#39;); //左长线
var msg = document.getElementById("msg"); //最上面的信息
var ifBool = false; //判断滑块是否按下

var lineDiv_W = getPosition(lineDiv).width; //长线的长度
var lineDiv_L = getPosition(lineDiv).left; //长线距离html的left

var minDiv_W = getPosition(minDiv).width; //滑块的长度
var minDiv_L = getPosition(minDiv).left; //滑块距离html的left

var Slider_W_MAX = lineDiv_W - minDiv_W; //滑块可以滑动的最大值px，范围是0~Slider_W_MAX

var minNum = 0; //最小值
var maxNum = 500; //最大值

var startNum = 100; //起始值
var endNum = 400; //结束值

var min_Px = Slider_W_MAX / maxNum * startNum; //滑块可以滑动的最小px
var max_Px = Slider_W_MAX / maxNum * endNum; //滑块可以滑动的最大px

var minDiv_left=0;   //当前滑块的位置
/*
    Slider_W_MAX     1元对应的px？                    1
      maxNum              1           1px对应的金额？
*/

function initSlider(initPX) { //设置滑块的初始位置
console.log(initPX);
minDiv_left=initPX;   //设置滑块的位置
minDiv.style.left = initPX + "px";
minVals.style.width = initPX + "px";
msg.innerText = parseInt(initPX / Slider_W_MAX * 100);
}

(function() { //初始化滑块位置
if(startNum >= 0) { //求出startNum对应的px
initSlider(Slider_W_MAX / maxNum * startNum)
}
})()

//事件
var start = function(e) {
ifBool = true;
//console.log("鼠标按下")
}
var move = function(e) {
//console.log("鼠标拖动")
if(ifBool) {
var x; //记录滑块距离html的距离left
if(!e.touches) { //兼容PC端
x = e.clientX;
} else { //兼容移动端
x = e.touches[0].pageX;
}

minDiv_left = x - lineDiv_L; //小方块相对于父元素（长线条）的left值 
if(minDiv_left >= Slider_W_MAX) {
minDiv_left = Slider_W_MAX;
}
if(minDiv_left < 0) {
minDiv_left = 0;
}

//设置拖动后小方块的left值
initSlider(minDiv_left)

}
}
var end = function(e) {
if(minDiv_left>max_Px){
initSlider(max_Px);
}
if(minDiv_left<min_Px){
initSlider(min_Px);
}
ifBool = false;
}
//鼠标按下方块
minDiv.addEventListener("touchstart", start);
minDiv.addEventListener("mousedown", start);
//拖动
window.addEventListener("touchmove", move);
window.addEventListener("mousemove", move);
//鼠标松开
window.addEventListener("touchend", end);
window.addEventListener("mouseup", end);

//获取元素的绝对位置
function getPosition(node) {
var width = node.offsetWidth; //元素宽度
var height = node.offsetHeight; //元素高度
var left = node.offsetLeft; //获取元素相对于其根元素的left值var left
var top = node.offsetTop; //获取元素相对于其根元素的top值var top
current = node.offsetParent; // 取得元素的offsetParent

// 一直循环直到根元素　　
while(current != null) {　　
left += current.offsetLeft;　　
top += current.offsetTop;　　
current = current.offsetParent;　　
}
return {
"width": width,
"height": height,
"left": left,
"top": top
};
}
}
</script>

Click water ripple effect:

js to realize dragging slider and clicking water ripple effect

<!DOCTYPE html>
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
		<title>JS</title>
		<link rel="stylesheet" type="text/css" href="css/reset.css" />
		<script type="text/javascript" src=""></script>
		<style type="text/css" media="screen">
			ul {
				font-size: 0;
				position: relative;
				padding: 0;
				width: 480px;
				margin: 40px auto;
				user-select: none;
			}
			
			li {
				display: inline-block;
				width: 160px;
				height: 60px;
				background: #E95546;
				font-size: 16px;
				text-align: center;
				line-height: 60px;
				color: white;
				text-transform: uppercase;
				position: relative;
				overflow: hidden;
				cursor: pointer;
			}
			
			.slider {
				display: block;
				position: absolute;
				bottom: 0;
				left: 0;
				height: 4px;
				background: #1685D3;
				transition: all 0.5s;
			}
			
			.ripple {
				width: 0;
				height: 0;
				border-radius: 50%;
				background: rgba(255, 255, 255, 0.4);
				-webkit-transform: scale(0);
				-ms-transform: scale(0);
				transform: scale(0);
				position: absolute;
				opacity: 1;
			}
			
			.rippleEffect {
				-webkit-animation: rippleDrop .4s linear;
				animation: rippleDrop .4s linear;
			}
			
			@-webkit-keyframes rippleDrop {
				100% {
					-webkit-transform: scale(2);
					transform: scale(2);
					opacity: 0;
				}
			}
			
			@keyframes rippleDrop {
				100% {
					-webkit-transform: scale(2);
					transform: scale(2);
					opacity: 0;
				}
			}
		</style>

	</head>
	<body>
		<ul>
			<li>项目一</li>
			<li>项目二</li>
			<li>项目三</li>
			<li class="slider"></li>
		</ul>
	</body>
	<script>
		$("ul li").click(function(e) {

			if($(this).hasClass(&#39;slider&#39;)) {
				return;
			}

			var whatTab = $(this).index();

			var howFar = 160 * whatTab;

			$(".slider").css({
				left: howFar + "px"
			});

			$(".ripple").remove();

			var posX = $(this).offset().left,
				posY = $(this).offset().top,
				buttonWidth = $(this).width(),
				buttonHeight = $(this).height();
			console.log(posX, posY, buttonWidth, buttonHeight)

			$(this).append("<span class=&#39;ripple&#39;></span>");

			if(buttonWidth >= buttonHeight) {
				buttonHeight = buttonWidth;
			} else {
				buttonWidth = buttonHeight;
			}

			var x = e.pageX - posX - buttonWidth / 2;
			var y = e.pageY - posY - buttonHeight / 2;

			$(".ripple").css({
				width: buttonWidth,
				height: buttonHeight,
				top: y + &#39;px&#39;,
				left: x + &#39;px&#39;
			}).addClass("rippleEffect");

		});
	</script>

</html>

Summary: The above is the entire content of this article, I hope it will be helpful to everyone's study. For more related tutorials, please visit

JavaScript Video Tutorial, jQuery Video Tutorial, bootstrap Tutorial!

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