在外部點擊時關閉導航欄，而不僅僅是關閉按鈕

Question

我得到了導航的這個工作版本，從屏幕的右側打開。當我點擊關閉按鈕時它會關閉。

當我單擊導航欄外部並將其限制在關閉按鈕X時，我希望它關閉。我應該如何繼續？

function openNav() { 
 
    document.getElementById("mySidenav").style.width = "250px"; 
 
} 
 

 
function closeNav() { 
 
    document.getElementById("mySidenav").style.width = "0"; 
 
}

.sidenav { 
 
    height: 100%; 
 
    width: 0; 
 
    position: fixed; 
 
    z-index: 1; 
 
    top: 0; 
 
    right: 0; 
 
    background-color: #111; 
 
    overflow-x: hidden; 
 
    transition: 0.5s; 
 
    padding-top: 60px; 
 
} 
 

 
.sidenav a { 
 
    padding: 8px 8px 8px 32px; 
 
    text-decoration: none; 
 
    font-size: 25px; 
 
    color: #818181; 
 
    display: block; 
 
    transition: 0.3s; 
 
} 
 

 
.sidenav a:hover, .offcanvas a:focus{ 
 
    color: #f1f1f1; 
 
} 
 

 
.sidenav .closebtn { 
 
    position: absolute; 
 
    top: 0; 
 
    right: 25px; 
 
    font-size: 36px; 
 
    margin-left: 50px; 
 
} 
 

 
@media screen and (max-height: 450px) { 
 
    .sidenav {padding-top: 15px;} 
 
    .sidenav a {font-size: 18px;} 
 
}

<div id="mySidenav" class="sidenav"> 
 
    <a href="javascript:void(0)" class="closebtn" onclick="closeNav()">&times;</a> 
 
    <a href="#">About</a> 
 
    <a href="#">Services</a> 
 
    <a href="#">Clients</a> 
 
    <a href="#">Contact</a> 
 
</div> 
 

 
<h2>Animated Sidenav Example</h2> 
 
<p>Click on the element below to open the side navigation menu.</p> 
 
<span style="font-size:30px;cursor:pointer" onclick="openNav()">&#9776; open</span>

Answer 1

試試這個

function openNav() { 
 
    document.getElementById("mySidenav").style.width = "250px"; 
 
} 
 

 
function closeNav() { 
 
    document.getElementById("mySidenav").style.width = "0"; 
 
} 
 

 
$('body').on('click', function(){ 
 
    if(parseInt($('#mySidenav').css('width')) > 0){ 
 
    closeNav(); 
 
    } 
 
});

.sidenav { 
 
    height: 100%; 
 
    width: 0; 
 
    position: fixed; 
 
    z-index: 1; 
 
    top: 0; 
 
    right: 0; 
 
    background-color: #111; 
 
    overflow-x: hidden; 
 
    transition: 0.5s; 
 
    padding-top: 60px; 
 
} 
 

 
.sidenav a { 
 
    padding: 8px 8px 8px 32px; 
 
    text-decoration: none; 
 
    font-size: 25px; 
 
    color: #818181; 
 
    display: block; 
 
    transition: 0.3s; 
 
} 
 

 
.sidenav a:hover, .offcanvas a:focus{ 
 
    color: #f1f1f1; 
 
} 
 

 
.sidenav .closebtn { 
 
    position: absolute; 
 
    top: 0; 
 
    right: 25px; 
 
    font-size: 36px; 
 
    margin-left: 50px; 
 
} 
 

 
@media screen and (max-height: 450px) { 
 
    .sidenav {padding-top: 15px;} 
 
    .sidenav a {font-size: 18px;} 
 
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<div id="mySidenav" class="sidenav"> 
 
    <a href="javascript:void(0)" class="closebtn" onclick="closeNav()">&times;</a> 
 
    <a href="#">About</a> 
 
    <a href="#">Services</a> 
 
    <a href="#">Clients</a> 
 
    <a href="#">Contact</a> 
 
</div> 
 

 
<h2>Animated Sidenav Example</h2> 
 
<p>Click on the element below to open the side navigation menu.</p> 
 
<span style="font-size:30px;cursor:pointer" onclick="openNav()">&#9776; open</span>

Answer 2

你可以點擊事件偵聽器添加到窗口，因此如果用戶點擊任何地方菜單關閉。如果你不希望它關閉，如果用戶點擊菜單中的項目，使用

event.stopPropagation() 

function openNav() { 
    document.getElementById("mySidenav").style.width = "250px"; 

    window.addEventListener(
     "click", 
     closeNav 
    ); 
} 

function closeNav() { 
    document.getElementById("mySidenav").style.width = "0"; 
    window.removeEventListener("click", closeNav); 
}