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javascript - 我正在尝试打开一个具有某种效果的模态窗口

转载 作者:行者123 更新时间:2023-11-28 01:26:11 25 4
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openModal() 函数在单击函数时被调用。

我在 Google 上查过,transition 属性不能与 CSS 中的 display 属性一起使用。另一种方法是使用不透明度。但是我无法从 JavaScript 为 CSS 属性调用动画。

    var whm, whs, whd, whc;
function openModal(a) {
whm="myModal"+a;
whs="mySlides"+a;
whd="demo"+a;
whc="caption"+a;

document.getElementById(whm).style.display = "block";
document.getElementById(whm).style.opacity = "1";
// document.getElementById(whm).classList.add('didLoad');
//document.getElementById(whm).className += " didLoad";

document.getElementById(whm).style.webkitTransition = "background 2s";
}
.modal {
display: none;
opacity: 0;
-webkit-transition: opacity 2s;
transition: opacity 2s;
position: fixed;
z-index: 1;
padding-top: 100px;
left: 0;
top: 0;
width: 100%;
height: 100%;
overflow: auto;
background-color: black;

完整代码

<!DOCTYPE html>
<html>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {
font-family: Verdana, sans-serif;
margin: 0;
}

* {
box-sizing: border-box;
}

.row > .column {
padding: 0 8px;
}

.row:after {
content: "";
display: table;
clear: both;
}

.column {
float: left;
width: 25%;
}

/* The Modal (background) */
.modal {
display: none;
opacity: 0;
-webkit-transition: opacity 2s;
transition: opacity 2s;
position: fixed;
z-index: 1;
padding-top: 100px;
left: 0;
top: 0;
width: 100%;
height: 100%;
overflow: auto;
background-color: black;
}

.didLoad
{
background-color: black;
transition: background-color 2s;

-webkit-transition: background-color 2s;

}

/* Modal Content */
.modal-content {
position: relative;
background-color: #fefefe;
margin: auto;
padding: 0;
width: 90%;
max-width: 1200px;
}

/* The Close Button */
.close {
color: white;
position: absolute;
top: 10px;
right: 25px;
font-size: 35px;
font-weight: bold;
}

.close:hover,
.close:focus {
color: #999;
text-decoration: none;
cursor: pointer;
}

.mySlides {
display: none;
}

.cursor {
cursor: pointer;
}

/* Next & previous buttons */
.prev,
.next {
cursor: pointer;
position: absolute;
top: 50%;
width: auto;
padding: 16px;
margin-top: -50px;
color: white;
font-weight: bold;
font-size: 20px;
transition: 0.6s ease;
border-radius: 0 3px 3px 0;
user-select: none;
-webkit-user-select: none;
}

/* Position the "next button" to the right */
.next {
right: 0;
border-radius: 3px 0 0 3px;
}

/* On hover, add a black background color with a little bit see-through */
.prev:hover,
.next:hover {
background-color: rgba(0, 0, 0, 0.8);
}

/* Number text (1/3 etc) */
.numbertext {
color: #f2f2f2;
font-size: 12px;
padding: 8px 12px;
position: absolute;
top: 0;
}

img {
margin-bottom: -4px;
}

.caption-container {
text-align: center;
background-color: black;
padding: 2px 16px;
color: white;
}

.demo {
opacity: 0.6;
}

.active,
.demo:hover {
opacity: 1;
}

img.hover-shadow {
transition: 0.3s;
}

.hover-shadow:hover {
box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}
</style>
<body>

<h2 style="text-align:center">Lightbox</h2>

<div class="row">
<div class="column">
<img src="http://placehold.it/1900x1400" style="width:100%" onclick="openModal(1);currentSlide(1)" class="hover-shadow cursor">
</div>
<div class="column">
<img src="http://placehold.it/1900x1400" style="width:100%" onclick="openModal(2);currentSlide(1)" class="hover-shadow cursor">
</div>
<div class="column">
<img src="http://placehold.it/1900x1400" style="width:100%" onclick="openModal(3);currentSlide(1)" class="hover-shadow cursor">
</div>
<div class="column">
<img src="http://placehold.it/1900x1400" style="width:100%" onclick="openModal(4);currentSlide(1)" class="hover-shadow cursor">
</div>
</div>

<div id="myModal1" class="modal">
<span class="close cursor" onclick="closeModal()">&times;</span>
<div class="modal-content">

<div class="mySlides1">
<div class="numbertext">1 / 4</div>
<img src="http://placehold.it/720x301" style="width:100%">
</div>

<div class="mySlides1">
<div class="numbertext">2 / 4</div>
<img src="http://placehold.it/720x302" style="width:100%">
</div>

<div class="mySlides1">
<div class="numbertext">3 / 4</div>
<img src="http://placehold.it/720x303" style="width:100%">
</div>

<div class="mySlides1">
<div class="numbertext">4 / 4</div>
<img src="http://placehold.it/720x304" style="width:100%">
</div>

<a class="prev" onclick="plusSlides(-1)">&#10094;</a>
<a class="next" onclick="plusSlides(1)">&#10095;</a>

<div class="caption-container">
<p id="caption1"></p>
</div>


<div class="column">
<img class="demo1 cursor" src="http://placehold.it/1900x1401" style="width:100%; height:100px;" onclick="currentSlide(1)" alt="Nature and sunrise">
</div>
<div class="column">
<img class="demo1 cursor" src="http://placehold.it/1900x1402" style="width:100%" onclick="currentSlide(2)" alt="Snow">
</div>
<div class="column">
<img class="demo1 cursor" src="http://placehold.it/1900x1403" style="width:100%" onclick="currentSlide(3)" alt="Mountains and fjords">
</div>
<div class="column">
<img class="demo1 cursor" src="http://placehold.it/1900x1404" style="width:100%" onclick="currentSlide(4)" alt="Northern Lights">
</div>
</div>
</div>

<div id="myModal2" class="modal">
<span class="close cursor" onclick="closeModal()">&times;</span>
<div class="modal-content">

<div class="mySlides2">
<div class="numbertext">1 / 4</div>
<img src="http://placehold.it/720x201" style="width:100%">
</div>

<div class="mySlides2">
<div class="numbertext">2 / 4</div>
<img src="http://placehold.it/720x202" style="width:100%">
</div>

<div class="mySlides2">
<div class="numbertext">3 / 4</div>
<img src="http://placehold.it/720x203" style="width:100%">
</div>

<div class="mySlides2">
<div class="numbertext">4 / 4</div>
<img src="http://placehold.it/720x204" style="width:100%">
</div>

<a class="prev" onclick="plusSlides(-1)">&#10094;</a>
<a class="next" onclick="plusSlides(1)">&#10095;</a>

<div class="caption-container">
<p id="caption2"></p>
</div>


<div class="column">
<img class="demo2 cursor" src="http://placehold.it/1900x1301" style="width:100%; height:100px;" onclick="currentSlide(1)" alt="bhai">
</div>
<div class="column">
<img class="demo2 cursor" src="http://placehold.it/1900x1302" style="width:100%" onclick="currentSlide(2)" alt="bhai bhai">
</div>
<div class="column">
<img class="demo2 cursor" src="http://placehold.it/1900x1303" style="width:100%" onclick="currentSlide(3)" alt="bhai bhai bhai">
</div>
<div class="column">
<img class="demo2 cursor" src="http://placehold.it/1900x1304" style="width:100%" onclick="currentSlide(4)" alt="fuck off">
</div>
</div>
</div>

<div id="myModal3" class="modal">
<span class="close cursor" onclick="closeModal()">&times;</span>
<div class="modal-content">

<div class="mySlides3">
<div class="numbertext">1 / 4</div>
<img src="http://placehold.it/720x300" style="width:100%">
</div>

<div class="mySlides3">
<div class="numbertext">2 / 4</div>
<img src="http://placehold.it/720x300" style="width:100%">
</div>

<div class="mySlides3">
<div class="numbertext">3 / 4</div>
<img src="http://placehold.it/720x300" style="width:100%">
</div>

<div class="mySlides3">
<div class="numbertext">4 / 4</div>
<img src="http://placehold.it/720x300" style="width:100%">
</div>

<a class="prev" onclick="plusSlides(-1)">&#10094;</a>
<a class="next" onclick="plusSlides(1)">&#10095;</a>

<div class="caption-container">
<p id="caption3"></p>
</div>


<div class="column">
<img class="demo3 cursor" src="http://placehold.it/1900x1400" style="width:100%; height:100px;" onclick="currentSlide(1)" alt="Nature and sunrise">
</div>
<div class="column">
<img class="demo3 cursor" src="http://placehold.it/1900x1400" style="width:100%" onclick="currentSlide(2)" alt="Snow">
</div>
<div class="column">
<img class="demo3 cursor" src="http://placehold.it/1900x1400" style="width:100%" onclick="currentSlide(3)" alt="Mountains and fjords">
</div>
<div class="column">
<img class="demo3 cursor" src="http://placehold.it/1900x1400" style="width:100%" onclick="currentSlide(4)" alt="Northern Lights">
</div>
</div>
</div>

<div id="myModal4" class="modal">
<span class="close cursor" onclick="closeModal()">&times;</span>
<div class="modal-content">

<div class="mySlides4">
<div class="numbertext">1 / 4</div>
<img src="http://placehold.it/720x300" style="width:100%">
</div>

<div class="mySlides4">
<div class="numbertext">2 / 4</div>
<img src="http://placehold.it/720x300" style="width:100%">
</div>

<div class="mySlides4">
<div class="numbertext">3 / 4</div>
<img src="http://placehold.it/720x300" style="width:100%">
</div>

<div class="mySlides4">
<div class="numbertext">4 / 4</div>
<img src="http://placehold.it/720x300" style="width:100%">
</div>

<a class="prev" onclick="plusSlides(-1)">&#10094;</a>
<a class="next" onclick="plusSlides(1)">&#10095;</a>

<div class="caption-container">
<p id="caption3"></p>
</div>


<div class="column">
<img class="demo4 cursor" src="http://placehold.it/1900x1400" style="width:100%; height:100px;" onclick="currentSlide(1)" alt="Nature and sunrise">
</div>
<div class="column">
<img class="demo4 cursor" src="http://placehold.it/1900x1400" style="width:100%" onclick="currentSlide(2)" alt="Snow">
</div>
<div class="column">
<img class="demo4 cursor" src="http://placehold.it/1900x1400" style="width:100%" onclick="currentSlide(3)" alt="Mountains and fjords">
</div>
<div class="column">
<img class="demo4 cursor" src="http://placehold.it/1900x1400" style="width:100%" onclick="currentSlide(4)" alt="Northern Lights">
</div>
</div>
</div>


<script>
var whm, whs, whd, whc;
function openModal(a) {
whm="myModal"+a;
whs="mySlides"+a;
whd="demo"+a;
whc="caption"+a;

document.getElementById(whm).style.display = "block";
document.getElementById(whm).style.opacity = "1";
// document.getElementById(whm).classList.add('didLoad');
//document.getElementById(whm).className += " didLoad";

document.getElementById(whm).style.webkitTransition = "background 2s";



}

function closeModal() {
document.getElementById(whm).style.display = "none";
}

var slideIndex = 1;
showSlides(slideIndex);

function plusSlides(n) {
showSlides(slideIndex += n);
}

function currentSlide(n) {
showSlides(slideIndex = n);
}

function showSlides(n) {
var i;
var slides = document.getElementsByClassName(whs);
var dots = document.getElementsByClassName(whd);
var captionText = document.getElementById(whc);
if (n > slides.length) {slideIndex = 1}
if (n < 1) {slideIndex = slides.length}
for (i = 0; i < slides.length; i++) {
slides[i].style.display = "none";
}
for (i = 0; i < dots.length; i++) {
dots[i].className = dots[i].className.replace(" active", "");
}
slides[slideIndex-1].style.display = "block";
dots[slideIndex-1].className += " active";
captionText.innerHTML = dots[slideIndex-1].alt;
}
</script>

</body>
</html>

最佳答案

Transitions 不适用于 display 但使用新的 class 和 CSS 动画,你可以做一些不错的事情(我只为 'show' 设置动画):

var show = document.getElementById('show');
var hide = document.getElementById('hide');

show.addEventListener("click", function() {
document.getElementById('hello').classList.add("active");
});

hide.addEventListener("click", function() {
document.getElementById('hello').classList.remove("active");
});
#content {
position: relative;
text-align: center;
}

#hello {
position: absolute;
padding: 10px;
background-color: yellow;
text-align: center;
left: 0;
right: 0;
display: none;
opacity: 0;
}

#hello.active {
display: block;
opacity: 1;
animation: fadeIn .4s;
}

@keyframes fadeIn {
0% { opacity: 0; }
100% { opacity: 1; }
}
<div id="content">
<div id="hello">
<p>Hello world !</p>
<button id="hide">Hide</button>
</div>
<button id="show">Show</button>
</div>

关于javascript - 我正在尝试打开一个具有某种效果的模态窗口,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51233777/

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