Add settings to a widget settings form.
Invoked from field_ui_field_edit_form() to allow the module defining the widget to add settings for a widget instance.
$field: The field structure being configured.
$instance: The instance structure being configured.
The form definition for the widget settings.
Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.
function hook_field_widget_settings_form($field, $instance) {
$widget = $instance['widget'];
$settings = $widget['settings'];
if ($widget['type'] == 'text_textfield') {
$form['size'] = array(
'#type' => 'textfield',
'#title' => t('Size of textfield'),
'#default_value' => $settings['size'],
'#element_validate' => array(
'element_validate_integer_positive',
),
'#required' => TRUE,
);
}
else {
$form['rows'] = array(
'#type' => 'textfield',
'#title' => t('Rows'),
'#default_value' => $settings['rows'],
'#element_validate' => array(
'element_validate_integer_positive',
),
'#required' => TRUE,
);
}
return $form;
}