javascript中关闭逻辑的弹出窗口/模式

Question

我试图用以下功能实现两个非常简单的弹出窗口/模式 - 1.单击一个按钮将打开相应的弹出窗口。 2.一旦弹出窗口处于活动状态，单击屏幕上的任意位置将关闭弹出窗口。 3.点击“X”将关闭弹出窗口。

我能够实现点1和2。然而提到的目标，我无法实现点3

HTML -

<button id="myBtn1">Open Modal 1</button> 
<div id="myModal1" class="modal"> 
    <div class="modal-content"> 
    <span class="close">&times;</span> 
    <p>Some text in first Modal</p> 
    </div> 
</div> 


<button id="myBtn2">Open Modal 2</button> 
<div id="myModal2" class="modal"> 
    <div class="modal-content"> 
    <span class="close">&times;</span> 
    <p>Some text in second modal</p> 
    </div> 
</div> 

JS - 这显然是不正确的：

var modal1 = document.getElementById('myModal1'); 
var btn1 = document.getElementById("myBtn1"); 

var modal2 = document.getElementById('myModal2'); 
var btn2 = document.getElementById("myBtn2"); 

var span = document.getElementsByClassName("close")[0]; 

btn1.onclick = function() { 
    modal1.style.display = "block"; 
} 

btn2.onclick = function() { 
    modal2.style.display = "block"; 
} 


// When the user clicks anywhere outside of the modal, close it 
window.onclick = function(event) { 
    if (event.target == modal1) { 
     modal1.style.display = "none"; 
    } 
    if (event.target == modal2) { 
     modal2.style.display = "none"; 
    } 
} 

span.onclick = function() { 
    modal1.style.display = "none"; 
} 

请在这里找到我的代码 - https://jsfiddle.net/23bL2w9L/

注意 - 我无法以任何方式更改HTML代码。只有Javascript应该被修改。

在此先感谢

Answer 1

你只为第一模跨度Close。我已经动态地修改了你的代码来关闭模态窗口。如果你有10模式关闭按钮，这将工作没有任何修改。

更改

var span = document.getElementsByClassName("close")[0]; 

到

var span = document.querySelectorAll(".close"); //this will get all `.close` elements 

更改，

span.onclick = function() { 
    modal1.style.display = "none"; 
} 

到

for(var i = 0; i < span.length; i++){ 
    span[i].onclick = function() { 
     //modal1.style.display = "none"; 
     //console.log(this.closest('.modal')); 
     this.closest('.modal').style.display = "none"; 
    } 
} 

https://jsfiddle.net/23bL2w9L/5/

演示：

var modal1 = document.getElementById('myModal1'); 
 
var btn1 = document.getElementById("myBtn1"); 
 

 
var modal2 = document.getElementById('myModal2'); 
 
var btn2 = document.getElementById("myBtn2"); 
 

 
var span = document.querySelectorAll(".close"); 
 

 
btn1.onclick = function() { 
 
    modal1.style.display = "block"; 
 
} 
 

 
btn2.onclick = function() { 
 
    modal2.style.display = "block"; 
 
} 
 

 

 
// When the user clicks anywhere outside of the modal, close it 
 
window.onclick = function(event) { 
 
    if (event.target == modal1) { 
 
     modal1.style.display = "none"; 
 
    } 
 
    if (event.target == modal2) { 
 
     modal2.style.display = "none"; 
 
    } 
 
} 
 

 
for(var i = 0; i < span.length; i++){ 
 
    span[i].onclick = function() { 
 
    //modal1.style.display = "none"; 
 
    console.log(this.closest('.modal')); 
 
    this.closest('.modal').style.display = "none"; 
 
    } 
 
}

/* The Modal (background) */ 
 
.modal { 
 
    display: none; /* Hidden by default */ 
 
    position: fixed; /* Stay in place */ 
 
    z-index: 1; /* Sit on top */ 
 
    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(0,0,0,0.4); /* Black w/ opacity */ 
 
} 
 

 
/* Modal Content/Box */ 
 
.modal-content { 
 
    background-color: #fefefe; 
 
    margin: 15% auto; /* 15% from the top and centered */ 
 
    padding: 20px; 
 
    border: 1px solid #888; 
 
    width: 80%; /* Could be more or less, depending on screen size */ 
 
} 
 

 
/* The Close Button */ 
 
.close { 
 
    color: #aaa; 
 
    float: right; 
 
    font-size: 28px; 
 
    font-weight: bold; 
 
} 
 

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

<!-- Trigger/Open The Modal --> 
 
<button id="myBtn1">Open Modal 1</button> 
 

 
<!-- The Modal --> 
 
<div id="myModal1" class="modal"> 
 

 
    <!-- Modal content --> 
 
    <div class="modal-content"> 
 
    <span class="close">&times;</span> 
 
    <p>Some text in first Modal</p> 
 
    </div> 
 

 
</div> 
 

 

 

 

 
<!-- Trigger/Open The Modal --> 
 
<button id="myBtn2">Open Modal 2</button> 
 

 
<!-- The Modal --> 
 
<div id="myModal2" class="modal"> 
 

 
    <!-- Modal content --> 
 
    <div class="modal-content"> 
 
    <span class="close">&times;</span> 
 
    <p>Some text in second modal</p> 
 
    </div> 
 

 
</div>

Answer 2

你几乎已经拥有了它。

你可以得到每个模式的关闭按钮，这样

var span1 = modal1.getElementsByClassName("close")[0]; 

，并绑定点击按钮，这样

span1.onclick = function() { 
    modal1.style.display = "none"; 
} 

https://jsfiddle.net/YannBertrand/23bL2w9L/1/

Answer 3

它的工作为modal1，和为第二个模态（modal2）这样做，请添加：

var span2 = document.getElementsByClassName("close")[1]; 
span2.onclick = function() { 
    modal2.style.display = "none"; 
} 

工作小提琴：Here

Answer 4

当我尝试你的小提琴代码，modal1的按钮关闭可以工作，但不适合modal2。 在您的JS代码，您只创建modal1行动，你必须为modal2太创建一个动作......

var modal1 = document.getElementById('myModal1'); 
var btn1 = document.getElementById("myBtn1"); 

var modal2 = document.getElementById('myModal2'); 
var btn2 = document.getElementById("myBtn2"); 

var span = document.getElementsByClassName("close")[0]; 
var span2 = document.getElementsByClassName("close")[1]; 

btn1.onclick = function() { 
    modal1.style.display = "block"; 
} 

btn2.onclick = function() { 
    modal2.style.display = "block"; 
} 


// When the user clicks anywhere outside of the modal, close it 
window.onclick = function(event) { 
    if (event.target == modal1) { 
     modal1.style.display = "none"; 
    } 
    if (event.target == modal2) { 
     modal2.style.display = "none"; 
    } 
} 

span.onclick = function() { 
    modal1.style.display = "none"; 
} 

span2.onclick = function() { 
    modal2.style.display = "none"; 
}