How can I close a Twitter Bootstrap popover with a click from anywhere (else) on the page?

Presuming that only one popover can be visible at any time, you can use a set of flags to mark when there's a popover visible, and only then hide them.

If you set the event listener on the document body, it will trigger when you click the element marked with 'popup-marker'. So you'll have to call stopPropagation() on the event object. And apply the same trick when clicking on the popover itself.

Below is a working JavaScript code that does this. It uses jQuery >= 1.7

jQuery(function() {
    var isVisible = false;

    var hideAllPopovers = function() {
       $('.popup-marker').each(function() {
            $(this).popover('hide');
        });  
    };

    $('.popup-marker').popover({
        html: true,
        trigger: 'manual'
    }).on('click', function(e) {
        // if any other popovers are visible, hide them
        if(isVisible) {
            hideAllPopovers();
        }

        $(this).popover('show');

        // handle clicking on the popover itself
        $('.popover').off('click').on('click', function(e) {
            e.stopPropagation(); // prevent event for bubbling up => will not get caught with document.onclick
        });

        isVisible = true;
        e.stopPropagation();
    });


    $(document).on('click', function(e) {
        hideAllPopovers();
        isVisible = false;
    });
});

http://jsfiddle.net/AFffL/539/

The only caveat is that you won't be able to open 2 popovers at the same time. But I think that would be confusing for the user, anyway :-)

This is even easier :

$('html').click(function(e) {
    $('.popup-marker').popover('hide');
});

$('.popup-marker').popover({
    html: true,
    trigger: 'manual'
}).click(function(e) {
    $(this).popover('toggle');
    e.stopPropagation();
});

I had a similar need, and found this great little extension of the Twitter Bootstrap Popover by Lee Carmichael, called BootstrapX - clickover. He also has some usage examples here. Basically it will change the popover into an interactive component which will close when you click elsewhere on the page, or on a close button within the popover. This will also allow multiple popovers open at once and a bunch of other nice features.

Plugin can be found here.

Usage example

<button rel="clickover" data-content="Show something here. 
    <button data-dismiss='clickover'
    >Close Clickover</button>"
>Show clickover</button>

javascript:

// load click overs using 'rel' attribute
$('[rel="clickover"]').clickover();