capture onclick event handler to CKEditor textarea

I guess you could use :

var element = CKEDITOR.document.getById( 'myElement' );
element.on( 'click', function( ev ) {
        someFunction();
    });

Instead of :

var element = CKEDITOR.document.getById( 'myElement' );
element.on( 'click', function( ev )
    {
        // Prevent the click to chave any effect in the element.
        ev.data.preventDefault();
    });

If you want the click event to happen and your function to run as well, instead of preventing what would normally happen when the click is made and only your function is run.

Use :

var element = CKEDITOR.document.getById( 'myElement' );
element.on( 'click', function( ev ) {
        ev.removeListener();
        someFunction();
    });

If you only want to listen to the event the very first time the element is clicked on, instead of every time the element is clicked.

Thanks,
Zanpakutō