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我有一个包含 3 张幻灯片的 Accordion 菜单。我需要在悬停时获取最后一个事件类,以便能够将其用于检查条件,以便在鼠标光标离开菜单 div 时保持幻灯片打开。到目前为止,我能够将类附加到每张幻灯片,但它们只检查它们是否在菜单 div 内。有没有办法检查我悬停在上面的唯一一张事件幻灯片?
Codepen
HTML代码
<div class="myMenu">
<ul>
<li class="mySlides slide1"><a class="img1" href="#"></a></li>
<li class="mySlides slide2"><a class="img2" href="#"></a></li>
<li class="mySlides slide3"><a class="img3" href="#"></a></li>
</ul>
</div>
JavaScript
var slide1 = document.querySelector('.slide1');
var slide2 = document.querySelector('.slide2');
var slide3 = document.querySelector('.slide3');
var img1 = document.querySelector('.img1');
var img2 = document.querySelector('.img2');
var img3 = document.querySelector('.img3');
/* */
document.querySelector('.myMenu').addEventListener('mouseout', mouseOutMenu);
function mouseOutMenu() {
if(slide1.classList.contains('insideMenu')) {
slide1.style.width = '298px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_open_leszbs.jpg')";
slide2.style.width = '21px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_closed_aonaaq.jpg')";
slide3.style.width = '21px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_closed_tobbqu.jpg')";
}
if(slide2.classList.contains('insideMenu')) {
slide2.style.width = '301px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_open_g8qfff.jpg')";
slide1.style.width = '21px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_closed_pnlynb.jpg')";
slide3.style.width = '21px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_closed_tobbqu.jpg')";
}
if(slide3.classList.contains('insideMenu')) {
slide3.style.width = '301px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_open_gcengd.jpg')";
slide1.style.width = '21px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_closed_pnlynb.jpg')";
slide2.style.width = '21px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_closed_aonaaq.jpg')";
}
}
/**************** 1 *******************/
/**********************************************************/
document.querySelector('.slide1').addEventListener('mouseover', mouseOver1);
function mouseOver1() {
slide1.classList.add('insideMenu');
if(slide1.style.width == '298px') {
slide1.style.width = '298px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_open_leszbs.jpg')";
} else {
slide1.style.width = '298px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_open_leszbs.jpg')";
}
slide2.style.width = '21px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_closed_aonaaq.jpg')";
slide3.style.width = '21px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_closed_tobbqu.jpg')";
}
document.querySelector('.slide1').addEventListener('mouseout', mouseOut1);
function mouseOut1() {
if(slide1.style.width > '21px') {
slide1.style.width = '21px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_closed_pnlynb.jpg')";
}
}
/**************** 2 *******************/
/**********************************************************/
document.querySelector('.slide2').addEventListener('mouseover', mouseOver2);
function mouseOver2() {
slide2.classList.add('insideMenu');
if(slide2.style.width == '301px') {
slide2.style.width = '301px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_open_g8qfff.jpg')";
} else {
slide2.style.width = '301px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_open_g8qfff.jpg')";
}
// close the rest of slides
slide1.style.width = '21px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_closed_pnlynb.jpg')";
slide3.style.width = '21px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_closed_tobbqu.jpg')";
}
document.querySelector('.slide2').addEventListener('mouseout', mouseOut2);
function mouseOut2() {
if(slide2.style.width > '21px') {
slide2.style.width = '21px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_closed_aonaaq.jpg')";
}
}
/**************** 3 *******************/
/**********************************************************/
document.querySelector('.slide3').addEventListener('mouseover', mouseOver3);
function mouseOver3() {
slide3.classList.add('insideMenu');
if(slide3.style.width == '301px') {
slide3.style.width = '301px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_open_gcengd.jpg')";
} else {
slide3.style.width = '301px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_open_gcengd.jpg')";
}
slide2.style.width = '21px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_closed_aonaaq.jpg')";
slide1.style.width = '21px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_closed_pnlynb.jpg')";
}
document.querySelector('.slide3').addEventListener('mouseout', mouseOut3);
function mouseOut3() {
if(slide3.style.width > '21px') {
slide3.style.width = '21px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_closed_tobbqu.jpg')";
}
}
/**********************************************************/
最佳答案
只是对您的代码稍作修改。我希望它能满足您的需求,顺便说一句,这是一个起点:
var slide1 = document.querySelector('.slide1');
var slide2 = document.querySelector('.slide2');
var slide3 = document.querySelector('.slide3');
var img1 = document.querySelector('.img1');
var img2 = document.querySelector('.img2');
var img3 = document.querySelector('.img3');
var timer;
/* */
document.querySelector('.myMenu').addEventListener('mouseout', mouseOutMenu);
function mouseOutMenu() {
if (slide1.classList.contains('insideMenu')) {
slide1.style.width = '298px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_open_leszbs.jpg')";
slide2.style.width = '21px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_closed_aonaaq.jpg')";
slide3.style.width = '21px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_closed_tobbqu.jpg')";
}
if (slide2.classList.contains('insideMenu')) {
slide2.style.width = '301px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_open_g8qfff.jpg')";
slide1.style.width = '21px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_closed_pnlynb.jpg')";
slide3.style.width = '21px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_closed_tobbqu.jpg')";
}
if (slide3.classList.contains('insideMenu')) {
slide3.style.width = '301px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_open_gcengd.jpg')";
slide1.style.width = '21px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_closed_pnlynb.jpg')";
slide2.style.width = '21px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_closed_aonaaq.jpg')";
}
}
/**************** 1 *******************/
/**********************************************************/
document.querySelector('.slide1').addEventListener('mouseover', mouseOver1);
function mouseOver1() {
pauseTheLoop();
slide1.classList.add('insideMenu');
if (slide1.style.width == '298px') {
slide1.style.width = '298px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_open_leszbs.jpg')";
} else {
slide1.style.width = '298px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_open_leszbs.jpg')";
}
slide2.style.width = '21px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_closed_aonaaq.jpg')";
slide3.style.width = '21px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_closed_tobbqu.jpg')";
}
document.querySelector('.slide1').addEventListener('mouseout', mouseOut1);
function mouseOut1() {
if (slide1.style.width > '21px') {
slide1.style.width = '21px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_closed_pnlynb.jpg')";
}
}
/**************** 2 *******************/
/**********************************************************/
document.querySelector('.slide2').addEventListener('mouseover', mouseOver2);
function mouseOver2() {
pauseTheLoop();
slide2.classList.add('insideMenu');
if (slide2.style.width == '301px') {
slide2.style.width = '301px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_open_g8qfff.jpg')";
} else {
slide2.style.width = '301px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_open_g8qfff.jpg')";
}
// close the rest of slides
slide1.style.width = '21px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_closed_pnlynb.jpg')";
slide3.style.width = '21px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_closed_tobbqu.jpg')";
}
document.querySelector('.slide2').addEventListener('mouseout', mouseOut2);
function mouseOut2() {
if (slide2.style.width > '21px') {
slide2.style.width = '21px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_closed_aonaaq.jpg')";
}
}
/**************** 3 *******************/
/**********************************************************/
document.querySelector('.slide3').addEventListener('mouseover', mouseOver3);
function mouseOver3() {
pauseTheLoop();
slide3.classList.add('insideMenu');
if (slide3.style.width == '301px') {
slide3.style.width = '301px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_open_gcengd.jpg')";
} else {
slide3.style.width = '301px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_open_gcengd.jpg')";
}
slide2.style.width = '21px';
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_closed_aonaaq.jpg')";
slide1.style.width = '21px';
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_closed_pnlynb.jpg')";
}
document.querySelector('.slide3').addEventListener('mouseout', mouseOut3);
function mouseOut3() {
if (slide3.style.width > '21px') {
slide3.style.width = '21px';
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_closed_tobbqu.jpg')";
/*img3.style.backgroundRepeat = 'no-repeat';*/
}
}
/**********************************************************/
var slideIndex = 0;
carousel();
function carousel() {
var index;
var slides = document.getElementsByClassName('mySlides');
for (index = 0; index < slides.length; index++) {
slides[index].style.width = '21px';
if (slides[0].style.width == '21px') {
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_closed_pnlynb.jpg')";
img1.style.backgroundRepeat = 'no-repeat';
}
if (slides[1].style.width == '21px') {
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_closed_aonaaq.jpg')";
img2.style.backgroundRepeat = 'no-repeat';
}
if (slides[2].style.width == '21px') {
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_closed_tobbqu.jpg')";
img3.style.backgroundRepeat = 'no-repeat';
}
}
slideIndex++;
if (slideIndex > slides.length) {
slideIndex = 1;
}
slides[slideIndex - 1].style.width = '301px';
if (slides[0].style.width == '301px') {
slides[0].style.width = '298px'
img1.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/1_open_leszbs.jpg')";
}
if (slides[1].style.width == '301px') {
img2.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/2_open_g8qfff.jpg')";
}
if (slides[2].style.width == '301px') {
img3.style.backgroundImage = "url('https://res.cloudinary.com/dijc9b7wz/image/upload/v1511157235/3_open_gcengd.jpg')";
}
timer = setTimeout(function() {
carousel();
}, 2000);
}
function pauseTheLoop() {
clearTimeout(timer);
console.log('stop loop');
timer = setTimeout(function() {
carousel();
console.log('restart loop');
}, 10000);
}
.myMenu {
position: relative;
width: 420px;
height: 161px;
overflow: hidden;
margin: 35px;
outline:1px solid red;
}
.myMenu ul {
list-style: none;
margin: 0px;
display: block;
}
.myMenu ul li {
float: left;
margin-right:5px;
padding-bottom:2px;
transition: width .3s ease-in-out;
}
.myMenu ul li a {
/*border-right: 1px solid #fff;*/
cursor:pointer;
display:block;
/*overflow:hidden;*/
height: 161px;
margin-left:1px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="myMenu">
<ul>
<li class="mySlides slide1">
<a class="img1" href="#"></a>
</li>
<li class="mySlides slide2">
<a class="img2" href="#"></a>
</li>
<li class="mySlides slide3">
<a class="img3" href="#"></a>
</li>
</ul>
</div>
我已经添加了一个对您创建的计时器的控件,这样您就可以在鼠标悬停在幻灯片上时销毁它并停止循环 n 秒。这是代码笔:https://codepen.io/anon/pen/BmYOrZ?editors=1111
关于javascript - 当鼠标光标离开 div 时获取悬停的最后一个事件类?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47401791/
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