【发布时间】：2017-04-11 06:20:58
【问题描述】：
我创建了一个范围滑块，可以直观地展示不同的横幅尺寸。我正在尝试创建一个函数，该函数允许 input-range-thumb 在触发 .mousedown 和 .mouseup 事件时更改其背景颜色。我读到无法使用简单的 Jquery 直接选择拇指。我读到创建一个类，并使用 .AddClass 方法是最好的。
我自己尝试过，但我似乎无法弄清楚为什么拇指不会改变颜色。
你能看看我的代码吗？
https://codepen.io/stinkytofu3311/pen/LWomev
//1. When user clicks their mouse down on the Range-Thumb the thumbs background-color will change to blue.
$("#range-slider").on("mousedown", function() {
$(this).addClass("thumb-down");
});
//2. When user mouse up on the Range-Thumb the Thumbs background-color will change to Green.
$("#range-slider").on("mouseup", function() {
$(this).addClass("thumb-up");
});
问题解决了！这是固定版本 https://codepen.io/stinkytofu3311/pen/OpKKMd
var imageUrl = new Array();
imageUrl[0] = 'http://svgshare.com/i/1Ak.svg';
imageUrl[1] = 'http://svgshare.com/i/1AQ.svg';
imageUrl[2] = 'http://svgshare.com/i/1Bb.svg';
imageUrl[3] = 'http://svgshare.com/i/1Am.svg';
imageUrl[4] = 'http://svgshare.com/i/1CG.svg';
imageUrl[5] = 'http://svgshare.com/i/1By.svg';
$(document).on('input change', '#range-slider', function() {//listen to slider changes
var v=$(this).val();//getting slider val
$('#sliderStatus').html( $(this).val() );
$("#img").prop("src", imageUrl[v]);
});
// ::::: Range Slider Thumb ::::: //
//1. When user clicks their mouse down on the Range-Slider
$("#range-slider").on("mousedown", function() {
//1.1 Remove default class from CSS, and add the class .thumb-down (changes background color)
$(this).removeClass().addClass("thumb-down");
//1.2 Remove default class from CSS, and add the class .hover-ring (changes box-shadow to a green color)
$(this).removeClass().addClass("hover-ring");
});
//2. When user mouse up on the Range-Slider the Thumbs background-color will change to Green
$("#range-slider").on("mouseup", function() {
//2.1 Add class .thumb-up
$(this).addClass("thumb-up");
$(this).addClass("hover-ring-out");
});.product-range-wrapper {
displat: -webkit-flex;
displat:flex;
-webkit-flex-direction: column;
flex-direction:column;
width:600px;
margin:0px auto;
/*outline: 1px solid purple;*/
}
.product-range-block {
display: -webkit-flex;
display:flex;
-webkit-flex-direction: row;
flex-direction: row;
width:100%;
height:300px;
/*outline: 1px solid red;*/
}
.ref-height-block {
flex-grow:3;
/*background-color:red;*/
}
.size-chart-block {
flex-grow:9;
/*background-color:green;*/
}
.product-range-block img {
width:90%;
/*outline: 1px solid blue;*/
}
#img {
width: 100% !important;
}
#slider_count {
margin:0px auto;
width:200px;
padding:20px 20px;
text-align:center;
background-color:yellow;
}
/* ::::::::::::::::::::Range Slider Styles::::::::::::::::::::::::: */
.range-slider-block {
margin:0px auto;
width:90%;
}
#range-slider {
padding:40px 0px;
width:100%;
/*outline: 1px solid green;*/
}
/* Remove Range Sliders Default Styles*/
input[type=range]{
-webkit-appearance: none;
}
/* Track */
input[type=range]::-webkit-slider-runnable-track {
height: 10px;
background: #d7d7d7;
border: none;
border-radius: 6px;
}
input[type=range]:focus {
outline: none;
}
/* Thumb */
input[type=range]::-webkit-slider-thumb {
-webkit-appearance: none;
border: none;
height: 30px;
width: 30px;
border-radius: 50%;
background: #46947F;
margin-top: -9px;
transition: box-shadow 0.5s;
}
input[type=range]:hover::-webkit-slider-thumb {
box-shadow: 0 0 0 6pt rgba(190,190,190,0.4);
cursor:pointer;
}
/* JS Stykes */
/* Changes Thumb color to darker green when mousedownn */
input[type=range].thumb-down::-webkit-slider-thumb {
background:#316557;
}
/* Changes Thumb color back to light green when mouseup */
input[type=range].thumb-up::-webkit-slider-thumb {
background:#46947F;
}
/* Changes Ring color Green */
input[type=range].hover-ring::-webkit-slider-thumb {
box-shadow: 0 0 0 6pt rgba(70,148,127,0.46);
cursor:pointer;
}
input[type=range].hover-ring-out::-webkit-slider-thumb {
box-shadow: 0 0 0 0pt rgba(0,0,0,0);
cursor:pointer;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="product-range-wrapper">
<div class="product-range-block">
<div class="ref-height-block">
<img src="http://svgshare.com/i/1Ba.svg" alt="Product Height Refrence" height="" width="">
</div>
<div class="size-chart-block">
<img src="http://svgshare.com/i/1Ak.svg" style='' id='img'/>
</div>
</div>
<div class="range-slider-block">
<input type="range" id="range-slider" value="0.0" min="0" max="5" step="1" />
</div>
</div>
<div id="slider_count">slider value = <span id="sliderStatus">0</span></div>【问题讨论】：
标签： javascript jquery html css