Form callback: builds the form for adding a new shortcut link.
$form: An associative array containing the structure of the form.
$form_state: An associative array containing the current state of the form.
$shortcut_set: An object representing the shortcut set to which the link will be added.
An array representing the form definition.
function shortcut_link_add($form, &$form_state, $shortcut_set) {
drupal_set_title(t('Add new shortcut'));
$form['shortcut_set'] = array(
'#type' => 'value',
'#value' => $shortcut_set,
);
$form += _shortcut_link_form_elements();
return $form;
}