模态窗口未关闭问题

Question

我使用 HTML、CSS 和 JavaScript 创建了一个模态窗口，其中我可以同时打开 2 个模态窗口， 我可以一个接一个地关闭它们（即关闭第二个窗口使第一个窗口保持活动状态，就像我想要的那样）。

到目前为止一切正常。

我首先附上这些工作代码，以便您以后可以将其与错误的 JavaScript 代码进行比较：

let open_modals = [];

$(function() {

  // Get the button that opens the modal
  // read all the control of any type which has class as modal-button
  var btn = document.querySelectorAll(".modal-button");

  // All page modals
  var modals = document.querySelectorAll('.modal');

  // Get the <span> element that closes the modal
  var spans = document.getElementsByClassName("close");

  // When the user clicks the button, open the modal
  for (var i = 0; i < btn.length; i++) {
    btn[i].onclick = function(e) {
      e.preventDefault();
      modal = document.querySelector(e.target.getAttribute("href"));
      modal.style.display = "block";
      open_modals.push(modal.id);
    }
  }

  // When the user clicks on <span> (x), close the modal
  for (var i = 0; i < spans.length; i++) {
    spans[i].onclick = function() {
      for (var index in modals) {
        if (typeof modals[index].style !== 'undefined' && modals[index].id == open_modals[open_modals.length - 1]) {
          modals[index].style.display = "none";
          open_modals.pop();
        }
      }
    }
  }

  // When the user clicks anywhere outside of the modal, close it
  window.onclick = function(event) {
    if (event.target.classList.contains('modal')) {
      for (var index in modals) {
        if (typeof modals[index].style !== 'undefined' && modals[index].id == open_modals[open_modals.length - 1]) {
          modals[index].style.display = "none";
          open_modals.pop();

        }
      }
    }
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!-- Trigger/Open The Modal -->
<a href="#myModal1" class="modal-button">• Click Me</a>
<!-- The Modal -->
<div id="myModal1" class="modal">
  <!-- Modal content -->
  <div class="modal-content">
    <div class="modal-header">
      <span class="close">×</span>
      <div class="headertext">
        <p>Modal Header</p>
      </div>
    </div>
    <div class="modal-body">
      <img class="pic" src="https://drive.google.com/thumbnail?id=108ZLeoIfNkKODfRbLuPWpmXRl0gH9qkD">
      <div class="bodytext">
        <h2 class="modal-button" href="#myModal2">Enable Second Modal Window by tapping on this text</h2>
      </div>
    </div>
  </div>
</div>
<div id="myModal2" class="modal">
  <!-- Modal content -->
  <div class="modal-content">
    <div class="modal-header">
      <span class="close">×</span>
      <div class="headertext">
        <p>Modal Header 2</p>
      </div>
    </div>
    <div class="modal-body">
      <img class="pic" src="https://drive.google.com/thumbnail?id=108ZLeoIfNkKODfRbLuPWpmXRl0gH9qkD">
      <div class="bodytext">
        <h2 class="modal-button" href="#myModal2">You have opened modal window no.2</h2>
      </div>
    </div>
  </div>
</div>

@import url('https://fonts.googleapis.com/css?family=Quicksand&display=swap');

/* The Modal (background) */

.modal {
  box-sizing: border-box;
  font-family: 'Quicksand', sans-serif;
  display: none;
  /* Hidden by default */
  position: fixed;
  /* Stay in place */
  z-index: 1;
  /* Sit on top */
  padding-top: 0.1875em;
  /* 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, 0.4);
  /* Black w/ opacity */
}

/* Modal Content */

.modal-content {
  color: white;
  position: relative;
  background-color: #171B20;
  margin: auto;
  padding: 0;
  border: 0.0625em solid #888;
  width: 97%;
  box-shadow: 0 0.25em 0.5em 0 rgba(0, 0, 0, 0.2), 0 0.375em 1.25em 0 rgba(0, 0, 0, 0.19);
  -webkit-animation-name: animatetop;
  -webkit-animation-duration: 0.4s;
  animation-name: animatetop;
  animation-duration: 0.4s;
}

/* Add Animation */

@-webkit-keyframes animatetop {
  from {
    top: -300px;
    opacity: 0;
  }
  to {
    top: 0;
    opacity: 1;
  }
}

@keyframes animatetop {
  from {
    top: -300px;
    opacity: 0;
  }
  to {
    top: 0;
    opacity: 1;
  }
}

@-webkit-keyframes animateBottom {
  from {
    top: 0px;
    opacity: 1;
  }
  to {
    top: 500px;
    opacity: 0;
  }
}

@keyframes animateBottom {
  from {
    top: 0px;
    opacity: 1;
  }
  to {
    top: 300px;
    opacity: 0;
  }
}

.modal-content-active {
  -webkit-animation-name: animateBottom;
  -webkit-animation-duration: 0.4s;
  animation-name: animateBottom;
  animation-duration: 0.4s;
}

/* The Close Button */

.close {
  color: #F0B823;
  float: right;
  font-size: 9vw;
  font-weight: bold;
  position: absolute;
  right: 0.25em;
  top: -0.25em;
}

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

.modal-header {
  padding: 0.125em 1em;
  background-color: #171B20;
  color: #F0B823;
}

.modal-body {}

.modal-button {
  font-family: 'Quicksand', sans-serif;
  background-color: #171B20;
  border: none;
  color: white;
  padding: 0.248em 0.496em;
  text-align: left;
  text-decoration: none;
  display: inline-block;
  font-size: 7vw;
  margin: 0.124em 0.062em;
  -webkit-transition-duration: 0.4s;
  /* Safari */
  transition-duration: 0;
  cursor: pointer;
  width: auto;
}

.modal-button:hover {
  background-color: #171B20;
  color: #F0B823;
}

.pic {
  margin: auto;
  display: block;
  height: auto;
  width: 50vh;
}

.headertext {
  font-family: 'Quicksand', sans-serif;
  display: block;
  text-align: center;
  font-size: 6.50vw;
}

.bodytext {
  font-size: 3.90vw;
  font-family: 'Quicksand', sans-serif;
  display: block;
  padding: 0.625em 0.9375em;
}

p {
  display: block;
  margin: 0;
}

现在是我发布此内容的真正问题
我想在模态窗口关闭时添加底部滑动动画，所以我在 CSS 中定义了动画，并通过 setTimeout 函数在 JavaScript 中添加了相同的动画。

现在我成功地添加了动画，但我搞砸了。

如果您同时打开两个模态窗口（首先打开 1 个窗口，然后通过该窗口正文中的文本，您可以打开第二个）并尝试关闭它们one-by-one。

只有第二个窗口会关闭，第一个窗口根本不会关闭 （如果您只是打开第一个窗口并尝试将其关闭，效果非常好。只有在打开两个窗口时第一个窗口的关闭 Activity 才会出现此问题）。

现在我附上了我添加 setTimeout 的 JavaScript 代码并弄乱了导致上述问题的一些东西：

let open_modals = [];

$(function() {

  // Get the button that opens the modal
  // read all the control of any type which has class as modal-button
  var btn = document.querySelectorAll(".modal-button");

  // All page modals
  var modals = document.querySelectorAll('.modal');

  // Get the <span> element that closes the modal
  var spans = document.getElementsByClassName("close");

  // When the user clicks the button, open the modal
  for (var i = 0; i < btn.length; i++) {
    btn[i].onclick = function(e) {
      e.preventDefault();
      modal = document.querySelector(e.target.getAttribute("href"));
      modal.style.display = "block";
      open_modals.push(modal.id);
    }
  }

  // When the user clicks on <span> (x), close the modal
  for (var i = 0; i < spans.length; i++) {
    spans[i].onclick = function() {
      for (var index in modals) {
        if (typeof modals[index].style !== 'undefined' && modals[index].id == open_modals[open_modals.length - 1]) {
          modals[index].classList.add("modal-content-active");

          setTimeout(function(){
            for (var index in modals) {
            modals[index].classList.remove("modal-content-active");
            modal.style.display = "none";
            open_modals.pop();
            }
          },400);
        }
      }
    }
  }

  // When the user clicks anywhere outside of the modal, close it
  window.onclick = function(event) {
    if (event.target.classList.contains('modal')) {
      for (var index in modals) {
        if (typeof modals[index].style !== 'undefined' && modals[index].id == open_modals[open_modals.length - 1]) {
          modals[index].classList.add("modal-content-active");

          setTimeout(function(){
            for (var index in modals) {
            modals[index].classList.remove("modal-content-active");
            modal.style.display = "none";
            open_modals.pop();
            }
          },400);

        }
      }
    }
  }
})

是否有人可以调整 JavaScript 代码以修复上述问题，同时让我的 setTimeout 动画也有？ （您可以将顶部没有 setTimeout-animations 的原始工作 JavaScript 与下面的错误 JavaScript 代码进行比较，以轻松做到这一点）。

更新：控制台出现以下错误：

未捕获的类型错误：无法读取未定义的属性“删除”

底部提到的错误的 JavaScript 代码

如果有人想在此处查看错误代码，请前往 - https://jsbin.com/cisanigihu/1/edit?output

Answer 1

这是因为你popsetTimeout 中的所有打开的模态，你应该pop 只是最新的模态。我在下面的 sn-p 中修复了您的代码：

let open_modals = [];

$(function() {

    // Get the button that opens the modal
    // read all the control of any type which has class as modal-button
    var btn = document.querySelectorAll(".modal-button");

    // All page modals
    var modals = document.querySelectorAll('.modal');

    // Get the <span> element that closes the modal
    var spans = document.getElementsByClassName("close");

    // When the user clicks the button, open the modal
    for (var i = 0; i < btn.length; i++) {
        btn[i].onclick = function(e) {
            e.preventDefault();
            modal = document.querySelector(e.target.getAttribute("href"));
            modal.style.display = "block";
            open_modals.push(modal.id);
        }
    }

    // When the user clicks on <span> (x), close the modal
    for (var i = 0; i < spans.length; i++) {
        spans[i].onclick = function() {
            for (var index in modals) {
                if (modals[index].id == open_modals[open_modals.length - 1]) {
                  var modal = modals[index];
                    modal.classList.add("modal-content-active");

                    setTimeout(function() {
                        modal.classList.remove("modal-content-active");
                        modal.style.display = "none";
                        open_modals.pop();
                    }, 400);
                }
            }
        }
    }

    // When the user clicks anywhere outside of the modal, close it
    window.onclick = function(event) {
        if (event.target.classList.contains('modal')) {
            for (var index in modals) {
                if (modals[index].id == open_modals[open_modals.length - 1]) {
                    var modal = modals[index];
                    modal.classList.add("modal-content-active");

                    setTimeout(function() {
                        modal.classList.remove("modal-content-active");
                        modal.style.display = "none";
                        open_modals.pop();
                    }, 400);

                }
            }
        }
    }
})

@import url('https://fonts.googleapis.com/css?family=Quicksand&display=swap');

/* The Modal (background) */

.modal {
  box-sizing: border-box;
  font-family: 'Quicksand', sans-serif;
  display: none;
  /* Hidden by default */
  position: fixed;
  /* Stay in place */
  z-index: 1;
  /* Sit on top */
  padding-top: 0.1875em;
  /* 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, 0.4);
  /* Black w/ opacity */
}

/* Modal Content */

.modal-content {
  color: white;
  position: relative;
  background-color: #171B20;
  margin: auto;
  padding: 0;
  border: 0.0625em solid #888;
  width: 97%;
  box-shadow: 0 0.25em 0.5em 0 rgba(0, 0, 0, 0.2), 0 0.375em 1.25em 0 rgba(0, 0, 0, 0.19);
  -webkit-animation-name: animatetop;
  -webkit-animation-duration: 0.4s;
  animation-name: animatetop;
  animation-duration: 0.4s;
}

/* Add Animation */

@-webkit-keyframes animatetop {
  from {
    top: -300px;
    opacity: 0;
  }
  to {
    top: 0;
    opacity: 1;
  }
}

@keyframes animatetop {
  from {
    top: -300px;
    opacity: 0;
  }
  to {
    top: 0;
    opacity: 1;
  }
}

@-webkit-keyframes animateBottom {
  from {
    top: 0px;
    opacity: 1;
  }
  to {
    top: 500px;
    opacity: 0;
  }
}

@keyframes animateBottom {
  from {
    top: 0px;
    opacity: 1;
  }
  to {
    top: 300px;
    opacity: 0;
  }
}

.modal-content-active {
  -webkit-animation-name: animateBottom;
  -webkit-animation-duration: 0.4s;
  animation-name: animateBottom;
  animation-duration: 0.4s;
}

/* The Close Button */

.close {
  color: #F0B823;
  float: right;
  font-size: 9vw;
  font-weight: bold;
  position: absolute;
  right: 0.25em;
  top: -0.25em;
}

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

.modal-header {
  padding: 0.125em 1em;
  background-color: #171B20;
  color: #F0B823;
}

.modal-body {}

.modal-button {
  font-family: 'Quicksand', sans-serif;
  background-color: #171B20;
  border: none;
  color: white;
  padding: 0.248em 0.496em;
  text-align: left;
  text-decoration: none;
  display: inline-block;
  font-size: 7vw;
  margin: 0.124em 0.062em;
  -webkit-transition-duration: 0.4s;
  /* Safari */
  transition-duration: 0;
  cursor: pointer;
  width: auto;
}

.modal-button:hover {
  background-color: #171B20;
  color: #F0B823;
}

.pic {
  margin: auto;
  display: block;
  height: auto;
  width: 50vh;
}

.headertext {
  font-family: 'Quicksand', sans-serif;
  display: block;
  text-align: center;
  font-size: 6.50vw;
}

.bodytext {
  font-size: 3.90vw;
  font-family: 'Quicksand', sans-serif;
  display: block;
  padding: 0.625em 0.9375em;
}

p {
  display: block;
  margin: 0;
}

   <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<!-- Trigger/Open The Modal -->
<a href="#myModal1" class="modal-button">• Click Me</a>

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

<!-- Modal content -->
<div class="modal-content">
    <div class="modal-header">
        <span class="close">×</span>
        <div class="headertext">
            <p>Modal Header</p>
        </div>
    </div>
    <div class="modal-body">
        <img class="pic" src="https://drive.google.com/thumbnail?id=108ZLeoIfNkKODfRbLuPWpmXRl0gH9qkD">
        <div class="bodytext">
            <h2 class="modal-button" href="#myModal2">Enable Second Modal Window by tapping on this text</h2>
        </div>
    </div>
</div>
</div>

<div id="myModal2" class="modal">

<!-- Modal content -->
<div class="modal-content">
    <div class="modal-header">
        <span class="close">×</span>
        <div class="headertext">
            <p>Modal Header 2</p>
        </div>
    </div>
    <div class="modal-body">
        <img class="pic" src="https://drive.google.com/thumbnail?id=108ZLeoIfNkKODfRbLuPWpmXRl0gH9qkD">
        <div class="bodytext">
            <h2 class="modal-button" href="#myModal2">You have opened modal window no.2</h2>
        </div>
    </div>
</div>
</div>