我正在尝试使用此示例为图像创建模式弹出窗口: https://www.w3schools.com/howto/howto_css_modal_images.asp
我大部分工作都根据需要进行,但是我似乎无法使它在同一页面上多次工作。
我正在用php生成文件列表,这肯定会使它复杂化。
此代码有一个try it编辑器 https://www.w3schools.com/howto/tryit.asp?filename=tryhow_css_modal_img
最终,我需要用它来包装我在PHP中生成的链接。
// Get the modal
var modal = document.getElementById('myModal');
// Get the image and insert it inside the modal - use its "alt" text as a caption
var img = document.getElementById('myImg');
var modalImg = document.getElementById("img01");
var captionText = document.getElementById("caption");
img.onclick = function(){
modal.style.display = "block";
modalImg.src = this.src;
captionText.innerHTML = this.alt;
}
// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];
// When the user clicks on <span> (x), close the modal
span.onclick = function() {
modal.style.display = "none";
}
body {font-family: Arial, Helvetica, sans-serif;}
#myImg {
border-radius: 5px;
cursor: pointer;
transition: 0.3s;
}
#myImg:hover {opacity: 0.7;}
/* The Modal (background) */
.modal {
display: none; /* Hidden by default */
position: fixed; /* Stay in place */
z-index: 1; /* Sit on top */
padding-top: 100px; /* Location of the box */
left: 0;
top: 0;
width: 100%; /* Full width */
height: 100%; /* Full height */
overflow: auto; /* Enable scroll if needed */
background-color: rgb(0,0,0); /* Fallback color */
background-color: rgba(0,0,0,0.9); /* Black w/ opacity */
}
/* Modal Content (image) */
.modal-content {
margin: auto;
display: block;
width: 80%;
max-width: 700px;
}
/* Caption of Modal Image */
#caption {
margin: auto;
display: block;
width: 80%;
max-width: 700px;
text-align: center;
color: #ccc;
padding: 10px 0;
height: 150px;
}
/* Add Animation */
.modal-content, #caption {
-webkit-animation-name: zoom;
-webkit-animation-duration: 0.6s;
animation-name: zoom;
animation-duration: 0.6s;
}
@-webkit-keyframes zoom {
from {-webkit-transform:scale(0)}
to {-webkit-transform:scale(1)}
}
@keyframes zoom {
from {transform:scale(0)}
to {transform:scale(1)}
}
/* The Close Button */
.close {
position: absolute;
top: 15px;
right: 35px;
color: #f1f1f1;
font-size: 40px;
font-weight: bold;
transition: 0.3s;
}
.close:hover,
.close:focus {
color: #bbb;
text-decoration: none;
cursor: pointer;
}
/* 100% Image Width on Smaller Screens */
@media only screen and (max-width: 700px){
.modal-content {
width: 100%;
}
}
<img id="myImg" src="img_snow.jpg" alt="Snow" style="width:100%; max-width:300px">
<!-- The Modal -->
<div id="myModal" class="modal">
<span class="close">×</span>
<img class="modal-content" id="img01">
<div id="caption"></div>
</div>
答案 0 :(得分:0)
如果我们希望能够单击多张图像,则可以为您的所有图像添加一个类(在下面的示例中:js-img
)。
由于有了该类,您可以查询这些元素并循环遍历每个元素以添加一个onclick
侦听器。
我们可以在这里看到一个有效的示例:https://jsfiddle.net/k8woxf0s/3/
主要代码是(循环):
Array.from(imgs).forEach(function(img) {
img.onclick = function() {
modal.style.display = "block";
modalImg.src = this.src;
captionText.innerHTML = this.alt;
};
})
Array.from
是必需的,因为getElementsByClassName
不会返回数组,而是返回HTMLCollection:https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByClassName。
您可以使用querySelectorAll
(这是更新的功能),请参见此处:https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelectorAll
现在,您必须编写代码以生成图像的DOM(PHP代码)。
希望对您有所帮助:)。