我试图在 Stack Overflow 上找到我的问题的答案,但未能找到答案。
作为我学习 JavaScript 的一部分,我正在尝试创建自己的轮播滑块。问题是我试图在同一页面上允许 X 个滑块,每个滑块都有自己的自动计时器和控件。当我尝试控制其中任何一个时,这被证明是一个问题。例如,如果我手动控制其中一个,另一个则停止播放,因为paused变量设置为true。
我很确定我的问题要么是变量的范围,要么是针对滑块元素(e)没有更具体。我可能已经看这个太久了,有点失去了对它的看法。我将不胜感激任何建议,甚至只是朝着正确的方向轻推。
谢谢。
HTML
<div id="slider-1" class="slider-wrap">
<div class="slider ">
<div class="slide-wrap" data-slide="0">
<div class="slider-slide" style="background-image: url(image1.png)">
<div class="slide-text text-background">
<a href="#">Slide 1</a>
</div>
</div>
</div>
<div class="slide-wrap" data-slide="1">
<div class="slider-slide" style="background-image: url(image2.png)">
<div class="slide-text text-background">
<a href="#">Slide 2</a>
</div>
</div>
</div>
<div class="slide-wrap current-slide" data-slide="2">
<div class="slider-slide" style="background-image: url(image3.png)">
<div class="slide-text text-background">
<a href="#">Slide 3</a>
</div>
</div>
</div>
</div>
</div>
Javascript
// Setup variables
let helpers = require('./helpers.js')
let sliders = document.getElementsByClassName('slider-wrap')
let paused = false
//Get all sliders on page and start slider function
for (var i = 0; i < sliders.length; i++) {
let slideIndex = 0
let e = sliders[i]
slider(e, slideIndex)
autoChange(e, slideIndex)
}
// Slider function which adds indicator click listeners
function slider (e, slideIndex) {
let element = e
let interval
let indicators = e.getElementsByClassName('slide-indicator')
for (var i = 0; i < indicators.length; i++) {
indicators[i].addEventListener('click', function (e) {
let slideIndex = Number(e.target.dataset.slide)
paused = true
if (helpers.hasClass(e.target, 'current') === false) {
clearTimeout(interval)
sliderChange(element, slideIndex)
}
})
}
}
// Change slider based on index and update classes
function sliderChange (e, slideIndex) {
let slides = e.getElementsByClassName('slide-wrap')
let indicators = e.getElementsByClassName('slide-indicator')
let num = slides.length - 1
let prev = e.querySelector('.current-slide')
for (var i = 0; i < slides.length; i++) {
slides[i].classList.remove('current-slide')
indicators[i].classList.remove('current')
}
slides[slideIndex].classList.add('current-slide')
indicators[slideIndex].classList.add('current-indicator')
if (paused === false) {
autoChange(e, slideIndex)
}
}
// Automatically change slide
function autoChange (e, slideIndex) {
let slides = e.getElementsByClassName('slide-wrap')
let num = slides.length - 1
if (slideIndex === num) {
slideIndex = 0
} else {
slideIndex++
}
interval = setTimeout(function () {
sliderChange(e, slideIndex)
}, 3000)
}