单击页面上的其他位置时关闭灯箱

时间：2017-05-20 03:50:32

标签： javascript html lightbox

我正在尝试使用CC模板设计网站，并尝试按照以下方式实施Lightbox：https://www.w3schools.com/howto/tryit.asp?filename=tryhow_css_js_lightbox

灯箱显示效果很好，但我遇到的问题是，如果我在灯箱外面点击，没有任何反应 - 也没有关闭按钮。

我对JavaScript和Web开发非常基础，所以请保持温和。

这是从w3schools拉出的灯箱代码，我将其修改为使用我自己的图像并添加colwrap div，以便我可以并排放置图像：

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

<div class="mySlides">
  <div class="numbertext">1 / 4</div>
  <img src="images/team/test2.jpg" style="width:100%">
</div>

<div class="mySlides">
  <div class="numbertext">2 / 4</div>
  <img src="images/team/test3.jpg"  style="width:100%">
</div>

<div class="mySlides">
  <div class="numbertext">3 / 4</div>
  <img src="images/team/test4.jpg"  style="width:100%">
</div>

<div class="mySlides">
  <div class="numbertext">4 / 4</div>
  <img src="images/team/test5.jpg"  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="caption"></p>
</div>

<div id="colwrap">

  <img class="demo cursor" src="images/team/test2.jpg" style="width:20%" onclick="currentSlide(1)" alt="Jacob Wilson - Vocals">


  <img class="demo cursor" src="images/team/test3.jpg" style="width:20%" onclick="currentSlide(2)" alt="Kevin Lee - Lead Guitar">


  <img class="demo cursor" src="images/team/test4.jpg" style="width:22%; height:5%;" onclick="currentSlide(3)" alt="Jeff Bridges - Drums">


  <img class="demo cursor" src="images/team/test5.jpg" style="width:20%" onclick="currentSlide(4)" alt="Shikamaru Nara - Bass">

  </div>

这是关闭模式的JavaScript：

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

所以目前没有关闭图标，外面点击也没有做任何事情。但是，如果我改变这一行：

<span class="close cursor" onclick="closeModal()">&times;</span>

跨越任何不会关闭光标的班级＆＃34;模态左上角会有一个小X，可以用来关闭灯箱。我不能真正理解那条线正在做什么，因为我可以把它设置为一个不存在的类，它仍然会给那个小X.但是如果它关闭了光标我不会＃39;得到那个X.

对于格式不好的帖子感到抱歉，我不确定要包含哪些代码，因为它非常冗长。任何想法都将不胜感激。

3 个答案:

答案 0 :(得分：0)

您可以尝试从事件对象调用名为stopPropagation()的函数：

我从这个演示改变了2个功能：

function plusSlides(event, n) {
  event.stopPropagation();
  showSlides(slideIndex += n);
}
function currentSlide(event, n) {
  event.stopPropagation();
  showSlides(slideIndex = n);
}

和html at：     <a class="prev" onclick="plusSlides(event, -1)">&#10094;</a> <a class="next" onclick="plusSlides(event, 1)">&#10095;</a>

同样在：     <div class="column"> <img class="demo cursor" src="img_nature_wide.jpg" style="width:100%" onclick="currentSlide(event, 1)" alt="Nature and sunrise"> </div> <div class="column"> <img class="demo cursor" src="img_fjords_wide.jpg" style="width:100%" onclick="currentSlide(event, 2)" alt="Trolltunga, Norway"> </div> <div class="column"> <img class="demo cursor" src="img_mountains_wide.jpg" style="width:100%" onclick="currentSlide(event, 3)" alt="Mountains and fjords"> </div> <div class="column"> <img class="demo cursor" src="img_lights_wide.jpg" style="width:100%" onclick="currentSlide(event, 4)" alt="Northern Lights"> </div> </div> </div>

接下来，我将closeModal移至父div

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

工作正常！

在here为您链接演示！希望这可以提供帮助！

答案 1 :(得分：0)

检查代码段是否有帮助。

＆＃13;
＆＃13; 
function openModal() {
  document.getElementById('myModal').style.display = "block";
}

function closeModal() {
  document.getElementById('myModal').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("mySlides");
  var dots = document.getElementsByClassName("demo");
  var captionText = document.getElementById("caption");
  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;
}
$(document).mouseup(function(e){
		if($(e.target).parents('.modal-content').length==0 && !$(e.target).is('.modal-content')){
			$('.modal').css('display', 'none');
		}
	});
＆＃13; 
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;
  position: fixed;
  z-index: 1;
  padding-top: 100px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: black;
}

/* 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)
}
＆＃13; 
<h2 style="text-align:center">Lightbox</h2>

<div class="row">
  <div class="column">
    <img src="http://placehold.it/200x200" style="width:100%" onclick="openModal();currentSlide(1)" class="hover-shadow cursor">
  </div>
  <div class="column">
    <img src="http://placehold.it/200x200" style="width:100%" onclick="openModal();currentSlide(2)" class="hover-shadow cursor">
  </div>
  <div class="column">
    <img src="http://placehold.it/200x200" style="width:100%" onclick="openModal();currentSlide(3)" class="hover-shadow cursor">
  </div>
  <div class="column">
    <img src="http://placehold.it/200x200" style="width:100%" onclick="openModal();currentSlide(4)" class="hover-shadow cursor">
  </div>
</div>

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

    <div class="mySlides">
      <div class="numbertext">1 / 4</div>
      <img src="http://placehold.it/500x500" style="width:100%">
    </div>

    <div class="mySlides">
      <div class="numbertext">2 / 4</div>
      <img src="http://placehold.it/500x500" style="width:100%">
    </div>

    <div class="mySlides">
      <div class="numbertext">3 / 4</div>
      <img src="http://placehold.it/500x500" style="width:100%">
    </div>
    
    <div class="mySlides">
      <div class="numbertext">4 / 4</div>
      <img src="http://placehold.it/500x500" 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="caption"></p>
    </div>


    <div class="column">
      <img class="demo cursor" src="http://placehold.it/100x100" style="width:100%" onclick="currentSlide(1)" alt="Nature and sunrise">
    </div>
    <div class="column">
      <img class="demo cursor" src="http://placehold.it/100x100" style="width:100%" onclick="currentSlide(2)" alt="Trolltunga, Norway">
    </div>
    <div class="column">
      <img class="demo cursor" src="http://placehold.it/100x100" style="width:100%" onclick="currentSlide(3)" alt="Mountains and fjords">
    </div>
    <div class="column">
      <img class="demo cursor" src="http://placehold.it/100x100" style="width:100%" onclick="currentSlide(4)" alt="Northern Lights">
    </div>
  </div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
＆＃13;
＆＃13;
＆＃13;

点击modal或lightbox内容view this link

的外部

其他文件添加Google ajax。

当用户在modal之外点击时，用于关闭lightbox或modal-content的jQuery脚本。

$(document).mouseup(function(e){
            if($(e.target).parents('.modal-content').length==0 && !$(e.target).is('.modal-content')){
                $('.modal').css('display', 'none');
            }
        });

答案 2 :(得分：0)

当有人点击外部并关闭模式时，您需要捕获事件。

试试这个。 

<!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;
      position: fixed;
      z-index: 1;
      padding-top: 100px;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      overflow: auto;
      background-color: black;
    }

    /* 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="1.png" style="width:100%" onclick="openModal(event);currentSlide(event,1)" class="hover-shadow cursor">
      </div>
      <div class="column">
        <img src="2.jpeg" style="width:100%" onclick="openModal(event);currentSlide(event,2)" class="hover-shadow cursor">
      </div>
      <div class="column">
        <img src="3.jpg" style="width:100%" onclick="openModal(event);currentSlide(event,3)" class="hover-shadow cursor">
      </div>
      <div class="column">
        <img src="4.jpg" style="width:100%" onclick="openModal(event);currentSlide(event,4)" class="hover-shadow cursor">
      </div>
    </div>

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

        <div class="mySlides">
          <div class="numbertext">1 / 4</div>
          <img src="1.png" style="width:100%">
        </div>

        <div class="mySlides">
          <div class="numbertext">2 / 4</div>
          <img src="2.jpeg" style="width:100%">
        </div>

        <div class="mySlides">
          <div class="numbertext">3 / 4</div>
          <img src="3.jpg" style="width:100%">
        </div>

        <div class="mySlides">
          <div class="numbertext">4 / 4</div>
          <img src="4.jpg" style="width:100%">
        </div>

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

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


        <div class="column">
          <img class="demo cursor" src="1.png" style="width:100%" onclick="currentSlide(event,1)" alt="Nature and sunrise">
        </div>
        <div class="column">
          <img class="demo cursor" src="2.jpeg" style="width:100%" onclick="currentSlide(event,2)" alt="Trolltunga, Norway">
        </div>
        <div class="column">
          <img class="demo cursor" src="3.jpg" style="width:100%" onclick="currentSlide(event, 3)" alt="Mountains and fjords">
        </div>
        <div class="column">
          <img class="demo cursor" src="4.jpg" style="width:100%" onclick="currentSlide(event,4)" alt="Northern Lights">
        </div>
      </div>
    </div>

    <script>
    window.addEventListener('click', clickedOutside, false);
    function clickedOutside(event){
        event.stopPropagation();
        closeModal() ;
    }
    function openModal(event) {
       event.stopPropagation();
        document.getElementById('myModal').style.display = "block";
    }

    function closeModal(event) {
      document.getElementById('myModal').style.display = "none";
    }

    var slideIndex = 1;
    showSlides(slideIndex);

    function plusSlides(event,n) {
       event.stopPropagation();
        showSlides(slideIndex += n);
    }

    function currentSlide(event,n) {
        event.stopPropagation();
        showSlides(slideIndex = n);
    }


    function showSlides(n) {
      var i;
      var slides = document.getElementsByClassName("mySlides");
      var dots = document.getElementsByClassName("demo");
      var captionText = document.getElementById("caption");
      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>
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