我想制作一个弹出窗口，该弹出窗口应在单击按钮后出现，并在用户单击框外时消失。
当我在它外面单击时，我不确定如何使 div 消失。
var popbox = document.getElementById("popbox");
document.getElementById("linkbox").onclick = function () {
popbox.style.display = "block";
};
???.onclick = function () {
popbox.style.display = "none";
};
这是第二个版本，它有一个透明的覆盖层，正如提问者在评论中所问的那样......
window.onload = function(){
var popup = document.getElementById('popup');
var overlay = document.getElementById('backgroundOverlay');
var openButton = document.getElementById('openOverlay');
document.onclick = function(e){
if(e.target.id == 'backgroundOverlay'){
popup.style.display = 'none';
overlay.style.display = 'none';
}
if(e.target === openButton){
popup.style.display = 'block';
overlay.style.display = 'block';
}
};
};#backgroundOverlay{
background-color:transparent;
position:fixed;
top:0;
left:0;
right:0;
bottom:0;
display:block;
}
#popup{
background-color:#fff;
border:1px solid #000;
width:80vw;
height:80vh;
position:absolute;
margin-left:10vw;
margin-right:10vw;
margin-top:10vh;
margin-bottom:10vh;
z-index:500;
}<div id="popup">This is some text.<input type="button" id="theButton" value="This is a button"></div>
<div id="backgroundOverlay"></div>
<input type="button" id="openOverlay" value="open popup">这是第一个版本...
这是一些代码。如果还有什么要补充的，请告诉我:)
事件 (e) 对象允许访问有关事件的信息。e.target 为您提供触发事件的元素。
window.onload = function(){
var divToHide = document.getElementById('divToHide');
document.onclick = function(e){
if(e.target.id !== 'divToHide'){
//element clicked wasn't the div; hide the div
divToHide.style.display = 'none';
}
};
};<div id="divToHide">Click outside of this div to hide it.</div>这是我用来在外部单击时关闭侧边栏的代码
function openNav() {
document.getElementById("mySidebar").style.width = "100px";
document.getElementById("curtain_menu").style.marginLeft = "100px";
}
function closeNav() {
document.getElementById("mySidebar").style.width = "0";
document.getElementById("curtain_menu").style.marginLeft = "0";
}
document.onclick = function (e) {
if (e.target.id !== 'mySidebar' && e.target.id !== 'btn_frontpage_menu') {
if (e.target.offsetParent && e.target.offsetParent.id !== 'mySidebar')
closeNav()
}
}.sidebar {
font-family: sans-serif;
height: 50%;
width: 0;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #111;
overflow-x: hidden;
transition: 0.5s;
padding-top: 60px;
opacity: 0.9;
}
.sidebar a,
.dropdown-btn {
padding: 8px 8px 8px 32px;
text-decoration: none;
font-size: 1vw !important;
color: rgb(195, 195, 195);
display: block;
background: none;
width: 100%;
text-align: left;
cursor: pointer;
outline: none;
transition: 0.3s;
border: none;
}
.dropdown-container a {
color: rgb(174, 174, 174) !important;
}
.sidebar a:hover,
.dropdown-btn:hover,
.dropdown-container a:hover {
color: green !important;
/* background-color: #5c5c5c; */
}
.sidebar .closebtn {
position: absolute;
top: 12px;
font-size: 36px !important;
margin-right: 5px;
text-align: right;
right: 20px;
}
.openbtn {
font-size: 20px !important;
cursor: pointer;
background-color: transparent;
color: black;
padding: 6px 15px;
border: none;
float: left;
}
#main {
position :absolute;
width: 100%;
height: 100%;
left: 100px
}<div id="mySidebar" class="sidebar" style="width: 100px;">
<a href="javascript:void(0)" class="closebtn"
onclick="closeNav()">×</a>
<a href="">Home</a>
<div class="dropdown-container">
<a href="">Job Management</a>
<a href="#">Request</a>
<a href="#">Pending</a>
</div>
</div>
<div id="curtain_menu">
<button id="btn_frontpage_menu" class="openbtn" onclick="openNav()">☰</button>
<div id="datetime"></div>
</div>
<div id="main"> Outside of 'Side Bar' is here
</div>这是我的解决方案。
yourFunc=e=>{
var popbox = document.getElementById("popbox");
if(e.target.id !=="popbox"){
popbox.style.display = "none";
}else{
popbox.style.display = "block";
}
}
document.addEventListener("click",yourFunc)
希望这对你有用
<script>
// Get the element
var modal = document.getElementById('modal');
// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
if (event.target == modal) {
modal.style.display = "none";
}
}
</script>
这段代码已经过测试，运行良好，谢谢。
可以用onblur事件来完成。
// required for focus
divEl.setAttribute('tabindex', '1');
divEl.onblur = event => {
// hide only if blur occurred outside divEl, ignore its children
if (!event.currentTarget.contains(event.relatedTarget)) {
hide();
}
// re-focus, if a child took it
divEl.focus();
};
divEl.focus();
PS 对于 IE11，event.relatedTarget = event.relatedTarget || document.activeElement;可能需要一个小技巧。