How to make just a part of html 'tabbable'? (Modal Dialog) - javascript

I have an Angular App and a custom Modal Dialog implementation. How can I limit the 'tabbablity' of the page so that i can just tab through the Modal, and not everything else in background?
I have set aria-hidden="true" for all other elements directly under the body tag, and thought that has to handle that, but no success. tabindex="-1" also did not work..
Actually I want the exact tab-behaviour of this bootstrap modal:
https://getbootstrap.com/docs/4.0/components/modal/
Click: "launch demo modal" and tab through the modal elements..
How can I achieve this?
Edit: I look at the bootstrap modal, and they do not set anything to other elements, but just to the modal container div (with class="modal fade show") tabindex="-1". And after the last element in modal, tab sets focus to this modal container div. After that the focus is set again to the first modal element. In my case tabindex="-1" strangely does not bring anything, after the last element focus jumps to the Browser's URL Input field and goes on.

I dont know what code you have...but this tabindex behavior works well with bootstarp example.
.modal-backdrop {
background-color: transparent !important;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">
Launch demo modal (with tab only on modal elements)
</button>
<!-- Modal -->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
coucou
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
<br><br><br>
<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal2">
Launch demo modal (with tab on all document elements)
</button>
<!-- Modal -->
<div class="modal fade" id="exampleModal2" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
coucou
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>

Related

Enter key is not working while NVDA is reading the bootstrap modal content, Last button is getting clicked when the complete content is read

When the modal is shown to the user and focus is set on the close button using 'shown.bs.modal'. NVDA reads the overview first. At that time enter key is working and closing the modal. But when NVDA reads the content using HTML syntax e.g (<h2> Something </h2> as heading level 2 something) then enter key is not working. Any of the keyup, keydown and keypress event is not getting triggered. Only the escape key is working at the time to close the modal or click the 'close' button.
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#exampleModal">
Launch demo modal
</button>
<!-- Modal -->
<div class="modal fade" id="exampleModal" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
</div>
<div class="modal-body">
...
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
To get the key events to work, you can try adding
role="application"
<!-- Modal -->
<div role="application" class="modal fade" id="exampleModal" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
</div>
<div class="modal-body">
...
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
You should also look at the aria-hidden attribute.https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Attributes/aria-hidden.
Note that:"Adding aria-hidden="true" to an element removes that element and all of its children from the accessibility tree. "

Bootstrap modal window not opening from inside bootstrap popover

when you click "MAGIC" then a bootstrap popover is shown and there you see the settings icon. If you click that icon a modal window should open, like if you click on the blue button "Launch demo modal". How can I fix that? What is the problem?
Here my code: https://jsfiddle.net/vhsqf65z/
<span data-html='true' data-toggle='popover'
title='<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal"><i class="glyphicon glyphicon-cog"></i></button>'
data-content='<b>content</b>'> MAGIC </span>
<!-- Modal -->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel"
aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
...
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-
dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
Thanks
Edit:
Added an image showing the popover and settings button.
enter image description here
I modified your code, removed handling inserted.bs.popover event:
https://jsfiddle.net/05nzfcak/
I tested it works (if I understood correctly what you want)

Bootstrap 4 modal over modal focus trap lost

Bootstrap 4: by open the first modal, the focus is a trap inside it (you can move the focus with tab key and you will never focus element outside the modal). When you open the second modal the focus is a trap inside it and again you can't focus outside element (this is right).
When you close the second modal the focus will back to the first modal (this is right) but the problem is that if you move the focus with tab key then the focus will go out (after the last focusable modal1 element) from the first modal so it is not trapped anymore in the first modal. Is there is any solution to solve the problem with bootstrap 4?
you can test it in jsfiddle (firefox browser):
https://jsfiddle.net/4cnmvf13/1/
html5:
<!-- Modal2 -->
<div class="modal fade" id="exampleModal2" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel2" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel2">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
2
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
<!-- Modal1 -->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
1
<!-- Button trigger modal2 -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal2">
Launch demo modal
</button>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
<!-- Button trigger modal1 -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">
Launch demo modal
</button>
css:
#exampleModal2 {
z-index: 200000;
}
Bootstrap does not handle these kinds of scenario it seems, you can handle the event as it is below to get the required tab-index with in the model
$('#exampleModal2').on('show.bs.modal', function () {
$('#exampleModal').modal("hide");
})
$('#exampleModal2').on('hide.bs.modal', function () {
$('#exampleModal').modal("show");
})
#exampleModal2 {
z-index: 1600;
}
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<div class="modal fade" id="exampleModal2" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel2" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel2">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
2
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
<!-- Modal1 -->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
1
<!-- Button trigger modal2 -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal2">
Launch demo modal
</button>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
<!-- Button trigger modal1 -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">
Launch demo modal
</button>

Bootstrap modal not showing up, screen just has black overlay

I'm trying to get a modal to show on my bootstrap site, and when I click the button to trigger it the screen turns dark, but nothing shows up.
<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">
Launch demo modal
</button>
<!-- Modal -->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
...
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
This is the javascript I'm using as well, in addition to JQuery, popper.js, bootstrap js
$('#myModal').on('shown.bs.modal', function() {
$('#myInput').trigger('focus')
})
I literally took this right off the bootstrap site and for some reason it's not working.
$('#myModal').on('shown.bs.modal', function() {
$('#myInput').trigger('focus')
})
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" rel="stylesheet" />
<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">
Launch demo modal
</button>
<!-- Modal -->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
...
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script>
The code snippet for the modal is perfectly fine, Check the parent div for both trigger and the modal and raise their z-index, It very likely that the Z-Index of the parent element is interfering with the modal pop up. You can try this`
.parentElementOfModal{
z-index:10000;
}

I would like to know how to create a custom dialog box that rises when button gets clicked n that

I would like to know how to create a custom dialog box that rises when button gets clicked n that box should be beside the the button...please help me out brothers
You can use Bootstrap model
http://getbootstrap.com/javascript/#modals
<!-- Button trigger modal -->
<button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
Launch demo modal
</button>
<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h4 class="modal-title" id="myModalLabel">Modal title</h4>
</div>
<div class="modal-body">
...
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>

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