array( 'title' => t('Administer menu attributes'), 'description' => t('Administer menu attributes.'), ), ); } /** * Implements hook_menu_link_alter(). */ function menu_attributes_menu_link_alter(&$item, $menu) { if (isset($item['options']['attributes']) && is_array($item['options']['attributes'])) { // Filter out blank attributes. foreach ($item['options']['attributes'] as $key => $value) { if ((is_array($value) && empty($value)) || is_string($value) && !drupal_strlen($value)) { unset($item['options']['attributes'][$key]); } } // Convert classes to an array. if (isset($item['options']['attributes']['class']) && is_string($item['options']['attributes']['class'])) { $item['options']['attributes']['class'] = array_filter(explode(' ', $item['options']['attributes']['class'])); } } } /** * Implements hook_menu_attribute_info(). */ function menu_attributes_menu_attribute_info() { $info['title'] = array( 'label' => t('Title'), 'description' => t('The description displayed when hovering over the link.'), 'form' => array( '#type' => 'textarea', '#rows' => 2, ), 'scope' => array(MENU_ATTRIBUTES_LINK), ); $info['id'] = array( 'label' => t('ID'), 'description' => t('Specifies a unique ID for the link.'), 'scope' => array(MENU_ATTRIBUTES_LINK, MENU_ATTRIBUTES_ITEM), ); $info['name'] = array( 'label' => t('Name'), 'scope' => array(MENU_ATTRIBUTES_LINK), ); $info['rel'] = array( 'label' => t('Relationship'), 'description' => t("Specifies the relationship between the current page and the link. Enter 'nofollow' here to nofollow this link."), 'scope' => array(MENU_ATTRIBUTES_LINK), ); $info['class'] = array( 'label' => t('Classes'), 'description' => t('Enter additional classes to be added to the link.'), 'scope' => array(MENU_ATTRIBUTES_LINK, MENU_ATTRIBUTES_ITEM), ); $info['style'] = array( 'label' => t('Style'), 'description' => t('Enter additional styles to be applied to the link.'), 'scope' => array(MENU_ATTRIBUTES_LINK, MENU_ATTRIBUTES_ITEM), ); $info['target'] = array( 'label' => t('Target'), 'description' => t('Specifies where to open the link. Using this attribute breaks XHTML validation.'), 'form' => array( '#type' => 'select', '#options' => array( '' => t('None (i.e. same window)'), '_blank' => t('New window (_blank)'), '_top' => t('Top window (_top)'), '_self' => t('Same window (_self)'), '_parent' => t('Parent window (_parent)'), ), ), 'scope' => array(MENU_ATTRIBUTES_LINK), ); $info['accesskey'] = array( 'label' => t('Access Key'), 'description' => t('Specifies a keyboard shortcut to access this link.', array('@accesskey' => url('http://en.wikipedia.org/wiki/Access_keys'))), 'form' => array( '#maxlength' => 1, '#size' => 1, ), 'scope' => array(MENU_ATTRIBUTES_LINK), ); return $info; } /** * Fetch an array of menu attributes. */ function menu_attributes_get_menu_attribute_info() { $attributes = module_invoke_all('menu_attribute_info'); // Merge in default values. foreach ($attributes as $attribute => &$info) { $info += array( 'form' => array(), 'enabled' => variable_get("menu_attributes_{$attribute}_enable", 1), 'default' => '', ); $info['form'] += array( '#type' => 'textfield', '#title' => $info['label'], '#description' => isset($info['description']) ? $info['description'] : '', '#default_value' => variable_get("menu_attributes_{$attribute}_default", $info['default']), ); } drupal_alter('menu_attribute_info', $attributes); return $attributes; } /** * Implements hook_form_FORM_ID_alter(). * * Adds menu attribute options to the edit menu item form. * * @see menu_edit_item() * @see _menu_attributes_form_alter() * @see menu_attributes_form_menu_edit_item_submit() */ function menu_attributes_form_menu_edit_item_alter(&$form, $form_state) { $item = $form['original_item']['#value']; _menu_attributes_form_alter($form, $item, $form); } /** * Implements hook_form_FORM_ID_alter(). * * Adds menu attribute options to the node's edit menu item form. * * @see _menu_attributes_form_alter() */ function menu_attributes_form_node_form_alter(&$form, $form_state) { if (isset($form['menu']['link']) && isset($form['#node']->menu)) { $item = $form['#node']->menu; _menu_attributes_form_alter($form['menu']['link'], $item, $form); } } /** * Add the menu attributes to a menu item edit form. * * @param $form * The menu item edit form passed by reference. * @param $item * The optional existing menu item for context. */ function _menu_attributes_form_alter(array &$form, array $item = array(), array &$complete_form) { $form['options']['#tree'] = TRUE; $form['options']['#weight'] = 50; // Unset the previous value so that the new values get saved. unset($form['options']['#value']['attributes']); unset($form['options']['#value']['item_attributes']); $form['options'][MENU_ATTRIBUTES_LINK] = array( '#type' => 'fieldset', '#title' => t('Menu link attributes'), '#collapsible' => TRUE, '#collapsed' => TRUE, '#tree' => TRUE, ); $form['options'][MENU_ATTRIBUTES_ITEM] = array( '#type' => 'fieldset', '#title' => t('Menu item attributes'), '#collapsible' => TRUE, '#collapsed' => TRUE, '#tree' => TRUE, ); $attributes = menu_attributes_get_menu_attribute_info(); foreach ($attributes as $attribute => $info) { // If no scope is set, this attribute should be available to both link // and item. if (!isset($info['scope'])) { $info['scope'] = array(MENU_ATTRIBUTES_LINK, MENU_ATTRIBUTES_ITEM); } // Define fields for each scope. foreach ($info['scope'] as $group) { // Merge in the proper default value. if (isset($item['options'][$group][$attribute])) { // If the menu link already has this attribute, use it. $info['form']['#default_value'] = $item['options'][$group][$attribute]; // Convert the classes array to a string for the form. if ($attribute == 'class' && is_array($info['form']['#default_value'])) { $info['form']['#default_value'] = implode(' ', $info['form']['#default_value']); } } elseif ($item['mlid']) { // If this is an existing link, use the raw default (usually empty). $info['form']['#default_value'] = $info['default']; } $form['options'][$group][$attribute] = $info['form'] + array( '#access' => $info['enabled'], ); } } // Add form values for the reset of $item['options'] and // $item['options']['attributes'] so the values will carry over during save. foreach ($item['options'] as $key => $value) { if ($key !== 'attributes' && !isset($form['options'][$key])) { $form['options'][$key] = array( '#type' => 'value', '#value' => $value, ); } } foreach (array(MENU_ATTRIBUTES_LINK, MENU_ATTRIBUTES_ITEM) as $group) { if (isset($item['options'][$group])) { foreach ($item['options'][$group] as $key => $value) { if (!isset($form['options'][$group][$key])) { $form['options'][$group][$key] = array( '#type' => 'value', '#value' => $value, ); } } } } // Hide the 'description' field since we will be using our own 'title' field. if (isset($form['description'])) { $form['description']['#access'] = FALSE; // Because this form uses a special $form['description'] field which is // really the 'title' attribute, we need to add special pre-submit handling // to ensure our field gets saved as the title attribute. array_unshift($complete_form['#submit'], '_menu_attributes_form_submit'); } // Restrict access to the new form elements. $has_visible_children = (bool) element_get_visible_children($form['options']['attributes']); $user_has_access = user_access('administer menu attributes'); $form['options']['attributes']['#access'] = ($has_visible_children && $user_has_access); } /** * Form submit handler for menu item links. * * Move the title attributes value into the 'description' value so that it * will get properly saved. */ function _menu_attributes_form_submit($form, &$form_state) { if (isset($form_state['values']['menu']['options']['attributes']['title'])) { $form_state['values']['menu']['description'] = $form_state['values']['menu']['options']['attributes']['title']; } elseif (isset($form_state['values']['options']['attributes']['title'])) { $form_state['values']['description'] = $form_state['values']['options']['attributes']['title']; } } /** * Implements hook_form_FORM_ID_alter(). * * Alters the menu settings form with our menu attribute settings. * * @see menu_configure_form() */ function menu_attributes_form_menu_configure_alter(&$form, $form_state) { if (!user_access('administer menu attributes')) { return; } $form['attributes_title'] = array( '#type' => 'item', '#title' => t('Menu item attribute options'), ); $form['attributes_vertical_tabs'] = array( '#type' => 'vertical_tabs', '#attached' => array( 'js' => array(drupal_get_path('module', 'menu_attributes') . '/menu_attributes.js'), ), ); $attributes = menu_attributes_get_menu_attribute_info(); foreach ($attributes as $attribute => $info) { $form['attributes'][$attribute] = array( '#type' => 'fieldset', '#title' => $info['label'], '#group' => 'attributes_vertical_tabs', '#description' => $info['form']['#description'], ); $form['attributes'][$attribute]["menu_attributes_{$attribute}_enable"] = array( '#type' => 'checkbox', '#title' => t('Enable the @attribute attribute.', array('@attribute' => drupal_strtolower($info['label']))), '#default_value' => $info['enabled'], ); $form['attributes'][$attribute]["menu_attributes_{$attribute}_default"] = array( '#title' => t('Default'), '#description' => '', '#states' => array( 'invisible' => array( 'input[name="menu_attributes_' . $attribute . '_enable"]' => array('checked' => FALSE), ), ), ) + $info['form']; } } /** * Implements MODULE_preprocess_HOOK(). * * Adds appropriate attributes to the list item. * * @see theme_menu_link() */ function menu_attributes_preprocess_menu_link(&$variables) { $options = &$variables['element']['#localized_options']; $attributes = &$variables['element']['#attributes']; if (isset($options['item_attributes'])) { foreach ($options['item_attributes'] as $attribute => $value) { if (!empty($value)) { // Class get's special treatment, as it's an array and it should not // replace existing values. if ($attribute == 'class') { $value = explode(' ', $value); if (isset($attributes[$attribute])) { $value = array_merge($attributes[$attribute], $value); } } // Override the attribute. $attributes[$attribute] = $value; } } // Clean up, so we're not passing this to l(). unset($options['item_attributes']); } }