I have an html page how can i specify tab index for bootstrap popup modal and main differently .

If popup is open table index should be available for popup modal only. But when i click on last element of popup modal tab transfer control to main page.

 <a href="#">first element</a>
 .
 .
 ...
<a href="#" >last element in popup</a>

when i press tab on last a it should transfer focus to first element instead of transferring to main page content

I have an html page how can i specify tab index for bootstrap popup modal and main differently .

If popup is open table index should be available for popup modal only. But when i click on last element of popup modal tab transfer control to main page.

 <a href="#">first element</a>
 .
 .
 ...
<a href="#" >last element in popup</a>

when i press tab on last a it should transfer focus to first element instead of transferring to main page content

• javascript
• jquery
• html
• css
• twitter-bootstrap

• 1 Bootstrap modal will have restriction of tab index inside modal by default. Check out the example here: getbootstrap./javascript/#modals. You are using some other modal? – Ganesh Kumar Commented Nov 23, 2015 at 11:00

4 Answers 4

add id to select in dom

 <a href="#" id="first">first element</a>
 .
 .
 ...
<a href="#" id="last" >last element in popup</a>

Check if event raised by last a is tab then set focus to first element

  <script type="text/javascript">
            document.getElementById('last').onkeydown = function(e){
                if (e.keyCode == 9) {
                    document.getElementById('first').focus();

                }
            }
     </script>

if you mean when you press tab from the last element and the modal closes, then try adding these inside the modal parameters.

( make sure your modal contains a close button, otherwise you will not be able to close the modal as the modal will not close on a input from the "esc" button or a click outside the modal body.)

data-backdrop="static" data-keyboard="false"

but if you want to close the modal by clicking out of the modal then use only

data-keyboard="false"

try something like below

$('#myModal').keydown(function(e){
 if($('#last').is(":focus") && (e.which || e.keyCode) == 9){
e.preventDefault();
$('#first').focus();
  }

});

You can do something like following:

private tabKey(event: KeyboardEvent) {
        let parentModal = $(document).find('.modal');
        //List of html elements which can be focused by tabbing.
        let focusableElementsArrayString = 'a[href], input:not([disabled]), select:not([disabled]), textarea:not([disabled]), button:not([disabled]), iframe, object, embed, [tabindex="0"]';
        let focusableElementsInModal = parentModal.find(focusableElementsArrayString);
        let numberOfElements = focusableElementsInModal.length;
        let firstTabElement = focusableElementsInModal[0];
        let lastTabElement = focusableElementsInModal[numberOfElements - 1];
        // Check for Shift + Tab
        if (event.keyCode === 9 && event.shiftKey) {
            if (document.activeElement === firstTabElement) {
                event.preventDefault();
                lastTabElement.focus();
            } // Check for Tab
        } else if (event.keyCode === 9) {
            if (document.activeElement === lastTabElement) {
                event.preventDefault();
                firstTabElement.focus();
            }
        }
    }