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<!DOCTYPE html> <html> <head> <style> div { background: yellow; border: 1px solid #cccccc; padding: 10px; } </style> </head> <body> <p>Assign an "onshow" event to a menu element.</p> <div contextmenu="mymenu"> <p>Right-click inside this box to see the context menu! <menu type="context" id="mymenu" onshow="myFunction()"> <menuitem label="Refresh" onclick="window.location.reload();" icon="ico_reload.png"></menuitem> <menu label="Share on..."> <menuitem label="Twitter" icon="ico_twitter.png" onclick="window.open('//twitter.com/intent/tweet?text=' + window.location.href);"></menuitem> <menuitem label="Facebook" icon="ico_facebook.png" onclick="window.open('//facebook.com/sharer/sharer.php?u=' + window.location.href);"></menuitem> </menu> <menuitem label="Email This Page" onclick="window.location='mailto:?body='+window.location.href;"></menuitem> </menu> </div> <p><strong>Note:</strong> The onshow event is currently only supported in Firefox.</p> <script> function myFunction() { alert("The context menu is about to be shown"); } </script> </body> </html>
