模态关闭内容外点击

Question

有人可以帮帮我吗？ 当我在内容之外单击时，我需要能够关闭此模式； 这是我的代码：

 $(document).ready(function(){ $(".add-roles-btn").click(function(){ $("#modal1").addClass("show-modal"); }); }); 

 .overlay { height: 100vh; width: 100%; position: fixed; top: 0; left: 0; background-color: rgba(50, 65, 97, 0.5); z-index: 9999; opacity: 0; visibility: hidden; transition: all .3s; } .overlay .cancel { position: absolute; width: 100%; height: 100%; cursor: default; } .overlay__content { position: absolute; top: 44%; left: 55.5%; padding: 4.8rem 6.4rem; width: 540px; background-color: #ffffff; box-shadow: 0 2rem 4rem rgba(81, 136, 255, 0.2); border-radius: 3px; display: table; overflow: hidden; opacity: 0; transform: translate(-50%, -50%) scale(0.25); transition: all .4s .2s; } @media only screen and (max-width: 61.875em) { .overlay__content { top: 50%; left: 50%; } } @media only screen and (max-width: 47em) { .overlay__content { padding: 4rem 6.5rem; width: 500px; } } @media only screen and (max-width: 37.5em) { .overlay__content { padding: 4rem 6.5rem; width: 100%; } } .show-modal { opacity: 1; visibility: visible; } .show-modal .overlay__content { opacity: 1; transform: translate(-50%, -50%) scale(1); } 

  <button type="button" class="add-roles-btn"><i class="material-icons icon--middle icon--pr-8">add</i>Add roles</button> <!-- Pop up modal --> <div class="overlay" id="modal1"> <div class="overlay__content"> <h3 class="heading-primary">Add role</h3> <form action="#"> <div class="form__group"> <input type="text" class="form__input" id="role_title"> <label for="role_title" class="form__label">Role Title</label> </div> <div class="form__group"> <textarea name="" class="form__input resize-none u-margin-bottom-0" id="role_description" rows="5"></textarea> <label for="role_description" class="form__label">Role Description</label> </div> <div class="align-right"> <button class="btn btn--primary capitalize add-role-btn">Add Role <i class="material-icons icon--sub add-modal-role">add</i></button> </div> </form> </div> </div> <!-- Pop up modal --> 

如您所见，单击它具有JS代码，它显示了模态，但是当您单击外部以关闭时，我无法更改它； 如何才能做到这一点？ 我是从头开始创建的。 我不想使用某些库或其他东西； 你能帮助我吗？ 我是JavaScript的新手，还是一般的编码。 我真的很感激; 谢谢。

Answer 1

您说过您不想使用任何库，所以这是一个普通的JS解决方案。

为此，我还将您的jQuery代码“翻译”为香草JS：

document.getElementsByClassName('add-roles-btn')[0].onclick = function() {
    document.getElementById('modal1').classList.add('show-modal');
}

// This block hides the modal when the user clicks outside of it
window.onclick = function(event) {
    if (event.target == document.getElementById('modal1')) {
    document.getElementById('modal1').style.display = 'none';
  }
}

这是其余代码的有效示例。

---

如果您想重新打开它，应该可以使用：

var modal = document.getElementById('modal1');

document.getElementsByClassName('add-roles-btn')[0].onclick = function() {
    modal.classList.add('show-modal');
}

window.onclick = function(event) {
    if (event.target == modal) {
    modal.classList.remove('show-modal');
  }
}

这是更新的代码。

Answer 2

这是更新后的代码，基本上，该概念是侦听body上的单击事件，并且如果元素上的DOM父链未达到模式modal1单击位于其外部，因此可以关闭模​​式。

另一个重要说明是调用e.stopPropagation因为body事件将在button事件之后被调用，从而导致窗口被关闭。 调用e.stopPropgation意味着单击该按钮时，不会触发“较大”的正文事件。

$(document).ready(function(){
    $(".add-roles-btn").click(function(e){
       $("#modal1").addClass("show-modal");
       // This is required so that when clicking the button the click event wont propogate to the body event
       e.stopPropagation()
    });
    // This function listens to all clicks on the document and gets the event data e
    $('body').click(function(e) {
       target = e.target;
       // If the clicked target isnt under modal1 - that means it won't be found in its parents
       if (($(target)).parents('#modal1').length == 0) {
          $("#modal1").removeClass("show-modal");
       }
    })
});

 $(document).ready(function(){ $(".add-roles-btn").click(function(e){ $("#modal1").addClass("show-modal"); // This is required so that when clicking the button the click event wont propogate to the body event e.stopPropagation() }); // This function listens to all clicks on the document and gets the event data e $('body').click(function(e) { target = e.target; // If the clicked target isnt under modal1 - that means it won't be found in its parents if (($(target)).parents('#modal1').length == 0) { $("#modal1").removeClass("show-modal"); } }) }); 

 .overlay { height: 100vh; width: 100%; position: fixed; top: 0; left: 0; background-color: rgba(50, 65, 97, 0.5); z-index: 9999; opacity: 0; visibility: hidden; transition: all .3s; } .overlay .cancel { position: absolute; width: 100%; height: 100%; cursor: default; } .overlay__content { position: absolute; top: 44%; left: 55.5%; padding: 4.8rem 6.4rem; width: 540px; background-color: #ffffff; box-shadow: 0 2rem 4rem rgba(81, 136, 255, 0.2); border-radius: 3px; display: table; overflow: hidden; opacity: 0; transform: translate(-50%, -50%) scale(0.25); transition: all .4s .2s; } @media only screen and (max-width: 61.875em) { .overlay__content { top: 50%; left: 50%; } } @media only screen and (max-width: 47em) { .overlay__content { padding: 4rem 6.5rem; width: 500px; } } @media only screen and (max-width: 37.5em) { .overlay__content { padding: 4rem 6.5rem; width: 100%; } } .show-modal { opacity: 1; visibility: visible; } .show-modal .overlay__content { opacity: 1; transform: translate(-50%, -50%) scale(1); } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <button type="button" class="add-roles-btn"><i class="material-icons icon--middle icon--pr-8">add</i>Add roles</button> <!-- Pop up modal --> <div class="overlay" id="modal1"> <div class="overlay__content"> <h3 class="heading-primary">Add role</h3> <form action="#"> <div class="form__group"> <input type="text" class="form__input" id="role_title"> <label for="role_title" class="form__label">Role Title</label> </div> <div class="form__group"> <textarea name="" class="form__input resize-none u-margin-bottom-0" id="role_description" rows="5"></textarea> <label for="role_description" class="form__label">Role Description</label> </div> <div class="align-right"> <button class="btn btn--primary capitalize add-role-btn">Add Role <i class="material-icons icon--sub add-modal-role">add</i></button> </div> </form> </div> </div> <!-- Pop up modal -->