Bootstrap 3.0 Context Menu

Original post https://stackoverflow.com/a/18667336/3129992

by Alexey Demin

HTML

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.min.css">
<table id="myTable" class="table table-hover">
    <thead>
        <tr>
            <th>#</th>
            <th>First Name</th>
            <th>Last Name</th>
            <th>Username</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td>1</td>
            <td>Mark</td>
            <td>Otto</td>
            <td>@mdo</td>
        </tr>
        <tr>
            <td>2</td>
            <td>Jacob</td>
            <td>Thornton</td>
            <td>@fat</td>
        </tr>
        <tr>
            <td>3</td>
            <td>Larry</td>
            <td>the Bird</td>
            <td>@twitter</td>
        </tr>
    </tbody>
</table>

<ul id="contextMenu" class="dropdown-menu" role="menu" style="display:none" >
    <li><a tabindex="-1" href="#">Action</a></li>
    <li><a tabindex="-1" href="#">Another action</a></li>
    <li><a tabindex="-1" href="#">Something else here</a></li>
    <li class="divider"></li>
    <li><a tabindex="-1" href="#">Separated link</a></li>
</ul>




<!-- Post Info -->
<div style='position:fixed;bottom:0;left:0;    
            background:lightgray;width:100%;'>
    About this SO Question: <a href='http://stackoverflow.com/q/18666601/1366033'>Use Bootstrap 3 dropdown menu as context menu</a><br/>
<div>

JavaScript

(function ($, window) {

    $.fn.contextMenu = function (settings) {

        return this.each(function () {

            // Open context menu
            $(this).on("contextmenu", function (e) {
                // return native menu if pressing control
                if (e.ctrlKey) return;
                
                //open menu
                var $menu = $(settings.menuSelector)
                    .data("invokedOn", $(e.target))
                    .show()
                    .css({
                        position: "absolute",
                        left: getMenuPosition(e.clientX, 'width', 'scrollLeft'),
                        top: getMenuPosition(e.clientY, 'height', 'scrollTop')
                    })
                    .off('click')
                    .on('click', 'a', function (e) {
                        $menu.hide();
                
                        var $invokedOn = $menu.data("invokedOn");
                        var $selectedMenu = $(e.target);
                        
                        settings.menuSelected.call(this, $invokedOn, $selectedMenu);
                    });
                
                return false;
            });

            //make sure menu closes on any click
            $(document).click(function () {
                $(settings.menuSelector).hide();
            });
        });
        
        function getMenuPosition(mouse, direction, scrollDir) {
            var win = $(window)[direction](),
                scroll = $(window)[scrollDir](),
                menu = $(settings.menuSelector)[direction](),
                position = mouse + scroll;
                        
            // opening menu would pass the side of the page
            if (mouse + menu > win && menu < mouse) 
                position -= menu;
            
            return position;
        }    

    };
})(jQuery, window);

$("#myTable td").contextMenu({
    menuSelector: "#contextMenu",
    menuSelected: function (invokedOn,...