View difference between Paste ID: DKi5aSyq and PzQFhykn

 // Answer for question on Drupal Stack Exchange:
 // http://drupal.stackexchange.com/questions/27907/enable-a-nodes-menu-item-when-on-that-node
 
 // this is the template.php file!!
 // ....
 
 
 /**
  * Should this link be hidden?
  *
  * @see http://drupal.stackexchange.com/questions/27907/enable-a-nodes-menu-item-when-on-that-node/27922
  *
  * @param string $link_path The path that should be inspected.
  * @return boolean
  */
 function YOURTHEMENAME_link_should_be_hidden($link_path) {
 
     // in this example, I let "contact" and "node/9" links only be visible
     // on their own path (so for example, I let "contact" path be visible
     // in the menu if the user opened "example.com/contact").
-    $your_paths_to_show_in_menu_only_on_their_own_path = array('contact', 'node/9'); // SUBSTITUTE IT with yours - empty cache every time you change that
+    $your_paths_to_show_in_menu_only_on_their_own_path = array('node/425'); // SUBSTITUTE IT with yours - empty cache every time you change that
     $is_link_to_hide = in_array($link_path, $your_paths_to_show_in_menu_only_on_their_own_path);
     if ($is_link_to_hide) {
         $is_current_page_self = ($link_path == $_GET['q']);
         // these links will be visible only on their own paths -
         // BUT here you can define other paths too where they can be visible at!
         // So for example, you want "example.com/node/9" to be visible when visiting its own path
         // AND when visiting "example.com/node/3" OR "example.com/any_other_path".
         // But if you do NOT want any other pages for these links to be visible at, then
         // just leave it empty (like this: array()).
-        $link_also_visible_at_paths = array('node/3', 'any_other_path'); // SUBSTITUTE IT with your paths! - empty cache every time you change that
+        $link_also_visible_at_paths = array(); // SUBSTITUTE IT with your paths! - empty cache every time you change that
         $element_can_be_visible = $is_current_page_self || (!empty($link_also_visible_at_paths) && in_array($_GET['q'], $link_also_visible_at_paths));
 
         if (!$element_can_be_visible) {
             return TRUE;
         }
     }
     return FALSE;
 }
 
 /**
  * Overriding theme_menu_link()
  *
  * @see http://api.drupal.org/api/drupal/includes%21menu.inc/function/theme_menu_link/7
  */
 function YOURTHEMENAME_menu_link(array $variables) {
     /**
      * @see http://drupal.stackexchange.com/questions/27907/enable-a-nodes-menu-item-when-on-that-node/27922
      */
     if (YOURTHEMENAME_link_should_be_hidden($variables['element']['#href'])) {
         return '';
     }
 
     $element = $variables['element'];
     $sub_menu = '';
 
     if ($element['#below']) {
         $sub_menu = drupal_render($element['#below']);
     }
     $output = l($element['#title'], $element['#href'], $element['#localized_options']);
     return '<li' . drupal_attributes($element['#attributes']) . '>' . $output . $sub_menu . "</li>\n";
 }
 
 /**
  * Helper function that builds the nested lists of a Superfish menu.
  * @see theme_superfish_build()
  */
 function YOURTHEMENAME_superfish_build($variables) {
 
     $output = array('content' => '');
     $id = $variables['id'];
     $menu = $variables['menu'];
     $depth = $variables['depth'];
     $trail = $variables['trail'];
     // Keep $sfsettings untouched as we need to pass it to the child menus.
     $settings = $sfsettings = $variables['sfsettings'];
     $megamenu = $settings['megamenu'];
     $total_children = $parent_children = $single_children = 0;
     $i = 1;
 
     // Reckon the total number of available menu items.
     foreach ($menu as $menu_item) {
         if (!isset($menu_item['link']['hidden']) || $menu_item['link']['hidden'] == 0) {
             $total_children++;
         }
     }
 
     foreach ($menu as $menu_item) {
 
         $show_children = $megamenu_wrapper = $megamenu_column = $megamenu_content = FALSE;
         $item_class = $link_options = $link_class = array();
         $mlid = $menu_item['link']['mlid'];
 
         /**
          * @see http://drupal.stackexchange.com/questions/27907/enable-a-nodes-menu-item-when-on-that-node/27922
          */
         if (YOURTHEMENAME_link_should_be_hidden($menu_item['link']['link_path'])) {
             continue;
         }
 
         if (!isset($menu_item['link']['hidden']) || $menu_item['link']['hidden'] == 0) {
             $item_class[] = ($trail && in_array($mlid, $trail)) ? 'active-trail' : '';
 
             // Add helper classes to the menu items and hyperlinks.
             $settings['firstlast'] = ($settings['dfirstlast'] == 1 && $total_children == 1) ? 0 : $settings['firstlast'];
             $item_class[] = ($settings['firstlast'] == 1) ? (($i == 1) ? 'first' : (($i == $total_children) ? 'last' : 'middle')) : '';
             $settings['zebra'] = ($settings['dzebra'] == 1 && $total_children == 1) ? 0 : $settings['zebra'];
             $item_class[] = ($settings['zebra'] == 1) ? (($i % 2) ? 'odd' : 'even') : '';
             $item_class[] = ($settings['itemcount'] == 1) ? 'sf-item-' . $i : '';
             $item_class[] = ($settings['itemdepth'] == 1) ? 'sf-depth-' . $menu_item['link']['depth'] : '';
             $link_class[] = ($settings['itemdepth'] == 1) ? 'sf-depth-' . $menu_item['link']['depth'] : '';
             $item_class[] = ($settings['liclass']) ? $settings['liclass'] : '';
             if (strpos($settings['hlclass'], ' ')) {
                 $l = explode(' ', $settings['hlclass']);
                 foreach ($l as $c) {
                     $link_class[] = $c;
                 }
             }
             else {
                 $link_class[] = $settings['hlclass'];
             }
             $i++;
 
             // Add hyperlinks description (title) to their text.
             $show_linkdescription = ($settings['linkdescription'] == 1 && !empty($menu_item['link']['localized_options']['attributes']['title'])) ? TRUE : FALSE;
             if ($show_linkdescription) {
                 if (!empty($settings['hldmenus'])) {
                     $show_linkdescription = (is_array($settings['hldmenus'])) ? ((in_array($mlid, $settings['hldmenus'])) ? TRUE : FALSE) : (($mlid == $settings['hldmenus']) ? TRUE : FALSE);
                 }
                 if (!empty($settings['hldexclude'])) {
                     $show_linkdescription = (is_array($settings['hldexclude'])) ? ((in_array($mlid, $settings['hldexclude'])) ? FALSE : $show_linkdescription) : (($settings['hldexclude'] == $mlid) ? FALSE : $show_linkdescription);
                 }
                 if ($show_linkdescription) {
                     $menu_item['link']['title'] .= '<span class="sf-description">';
                     $menu_item['link']['title'] .= (!empty($menu_item['link']['localized_options']['attributes']['title'])) ? $menu_item['link']['localized_options']['attributes']['title'] : array();
                     $menu_item['link']['title'] .= '</span>';
                     $link_options['html'] = TRUE;
                 }
             }
 
             // Add custom HTML codes around the menu items.
             if ($sfsettings['wrapul'] && strpos($sfsettings['wrapul'], ',') !== FALSE) {
                 $wul = explode(',', $sfsettings['wrapul']);
                 // In case you just wanted to add something after the element.
                 if (drupal_substr($sfsettings['wrapul'], 0) == ',') {
                     array_unshift($wul, '');
                 }
             }
             else {
                 $wul = array();
             }
 
             // Add custom HTML codes around the hyperlinks.
             if ($settings['wraphl'] && strpos($settings['wraphl'], ',') !== FALSE) {
                 $whl = explode(',', $settings['wraphl']);
                 // The same as above
                 if (drupal_substr($settings['wraphl'], 0) == ',') {
                     array_unshift($whl, '');
                 }
             }
             else {
                 $whl = array();
             }
 
             // Add custom HTML codes around the hyperlinks text.
             if ($settings['wraphlt'] && strpos($settings['wraphlt'], ',') !== FALSE) {
                 $whlt = explode(',', $settings['wraphlt']);
                 // The same as above
                 if (drupal_substr($settings['wraphlt'], 0) == ',') {
                     array_unshift($whlt, '');
                 }
                 $menu_item['link']['title'] = $whlt[0] . check_plain($menu_item['link']['title']) . $whlt[1];
                 $link_options['html'] = TRUE;
             }
 
 
             if (!empty($menu_item['link']['has_children']) && !empty($menu_item['below']) && $depth != 0) {
                 // Megamenu is still beta, there is a good chance much of this will be changed.
                 if (!empty($settings['megamenu_exclude'])) {
                     if (is_array($settings['megamenu_exclude'])) {
                         $megamenu = (in_array($mlid, $settings['megamenu_exclude'])) ? 0 : $megamenu;
                     }
                     else {
                         $megamenu = ($settings['megamenu_exclude'] == $mlid) ? 0 : $megamenu;
                     }
                     // Send the result to the sub-menu.
                     $sfsettings['megamenu'] = $megamenu;
                 }
                 if ($megamenu == 1) {
                     $megamenu_wrapper = ($menu_item['link']['depth'] == $settings['megamenu_depth']) ? TRUE : FALSE;
                     $megamenu_column = ($menu_item['link']['depth'] == $settings['megamenu_depth'] + 1) ? TRUE : FALSE;
                     $megamenu_content = ($menu_item['link']['depth'] >= $settings['megamenu_depth'] && $menu_item['link']['depth'] <= $settings['megamenu_levels']) ? TRUE : FALSE;
                 }
                 // Render the sub-menu.
                 $var = array(
                   'id' => $id,
                   'menu' => $menu_item['below'],
                   'depth' => $depth, 'trail' => $trail,
                   'sfsettings' => $sfsettings
                 );
                 $children = theme('superfish_build', $var);
                 // Check to see whether it should be displayed.
                 $show_children = (($menu_item['link']['depth'] <= $depth || $depth == -1) && $children['content']) ? TRUE : FALSE;
                 if ($show_children) {
                     // Add item counter classes.
                     if ($settings['itemcounter']) {
                         $item_class[] = 'sf-total-children-' . $children['total_children'];
                         $item_class[] = 'sf-parent-children-' . $children['parent_children'];
                         $item_class[] = 'sf-single-children-' . $children['single_children'];
                     }
                     // More helper classes.
                     $item_class[] = ($megamenu_column) ? 'sf-megamenu-column' : '';
                     $item_class[] = $link_class[] = 'menuparent';
                 }
                 $parent_children++;
             }
             else {
                 $item_class[] = 'sf-no-children';
                 $single_children++;
             }
 
             $item_class = implode(' ', array_filter($item_class));
 
             if (isset($menu_item['link']['localized_options']['attributes']['class'])) {
                 $link_class_current = $menu_item['link']['localized_options']['attributes']['class'];
                 $link_class = array_merge($link_class_current, array_filter($link_class));
             }
             $menu_item['link']['localized_options']['attributes']['class'] = $link_class;
 
             $link_options['attributes'] = $menu_item['link']['localized_options']['attributes'];
 
             // Render the menu item.
             $output['content'] .= '<li id="menu-' . $mlid . '-' . $id . '"';
             $output['content'] .= ($item_class) ? ' class="' . trim($item_class) . '">' : '>';
             $output['content'] .= ($megamenu_column) ? '<div class="sf-megamenu-column">' : '';
             $output['content'] .= isset($whl[0]) ? $whl[0] : '';
             $output['content'] .= l($menu_item['link']['title'], $menu_item['link']['link_path'], $link_options);
             $output['content'] .= isset($whl[1]) ? $whl[1] : '';
             $output['content'] .= ($megamenu_wrapper) ? '<ul class="sf-megamenu"><li class="sf-megamenu-wrapper ' . $item_class . '">' : '';
             $output['content'] .= ($show_children) ? (isset($wul[0]) ? $wul[0] : '') : '';
             $output['content'] .= ($show_children) ? (($megamenu_content) ? '<ol>' : '<ul>') : '';
             $output['content'] .= ($show_children) ? $children['content'] : '';
             $output['content'] .= ($show_children) ? (($megamenu_content) ? '</ol>' : '</ul>') : '';
             $output['content'] .= ($show_children) ? (isset($wul[1]) ? $wul[1] : '') : '';
             $output['content'] .= ($megamenu_wrapper) ? '</li></ul>' : '';
             $output['content'] .= ($megamenu_column) ? '</div>' : '';
             $output['content'] .= '</li>';
         }
     }
     $output['total_children'] = $total_children;
     $output['parent_children'] = $parent_children;
     $output['single_children'] = $single_children;
     return $output;
 }
 
 /**
  * Overriding theme_site_map_menu_link()
  *
  * @param array $variables
  * @return string
  */
 function YOURTHEMENAME_site_map_menu_link($variables) {
 
     $element = $variables['element'];
     $sub_menu = '';
 
     /**
      * @see http://drupal.stackexchange.com/questions/27907/enable-a-nodes-menu-item-when-on-that-node/27922
      */
     if (YOURTHEMENAME_link_should_be_hidden($element['#href'])) {
         return '';
     }
 
     if ($element['#below']) {
         $sub_menu = drupal_render($element['#below']);
     }
     $output = l($element['#title'], $element['#href'], $element['#localized_options']);
     return '<li' . drupal_attributes($element['#attributes']) . '>' . $output . $sub_menu . "</li>\n";
 }
 
 /**
  * Returns HTML for a set of links.
  * @see theme_links()
  */
 function YOURTHEMENAME_links($variables) {
     $links = $variables['links'];
     $attributes = $variables['attributes'];
     $heading = $variables['heading'];
     global $language_url;
     $output = '';
 
     if (count($links) > 0) {
         $output = '';
 
         // Treat the heading first if it is present to prepend it to the
         // list of links.
         if (!empty($heading)) {
             if (is_string($heading)) {
                 // Prepare the array that will be used when the passed heading
                 // is a string.
                 $heading = array(
                   'text' => $heading,
                   // Set the default level of the heading.
                   'level' => 'h2',
                 );
             }
             $output .= '<' . $heading['level'];
             if (!empty($heading['class'])) {
                 $output .= drupal_attributes(array('class' => $heading['class']));
             }
             $output .= '>' . check_plain($heading['text']) . '</' . $heading['level'] . '>';
         }
 
         $output .= '<ul' . drupal_attributes($attributes) . '>';
 
         $num_links = count($links);
         $i = 1;
 
         foreach ($links as $key => $link) {
 
             /**
              * @see http://drupal.stackexchange.com/questions/27907/enable-a-nodes-menu-item-when-on-that-node/27922
              */
             if (YOURTHEMENAME_link_should_be_hidden($link['href'])) {
                 continue;
             }
 
 
             $class = array($key);
 
             // Add first, last and active classes to the list of links to help out themers.
             if ($i == 1) {
                 $class[] = 'first';
             }
             if ($i == $num_links) {
                 $class[] = 'last';
             }
             if (isset($link['href']) && ($link['href'] == $_GET['q'] || ($link['href'] == '<front>' && drupal_is_front_page()))
                 && (empty($link['language']) || $link['language']->language == $language_url->language)) {
                 $class[] = 'active';
             }
             $output .= '<li' . drupal_attributes(array('class' => $class)) . '>';
 
             if (isset($link['href'])) {
                 // Pass in $link as $options, they share the same keys.
                 $output .= l($link['title'], $link['href'], $link);
             }
             elseif (!empty($link['title'])) {
                 // Some links are actually not links, but we wrap these in <span> for adding title and class attributes.
                 if (empty($link['html'])) {
                     $link['title'] = check_plain($link['title']);
                 }
                 $span_attributes = '';
                 if (isset($link['attributes'])) {
                     $span_attributes = drupal_attributes($link['attributes']);
                 }
                 $output .= '<span' . $span_attributes . '>' . $link['title'] . '</span>';
             }
 
             $i++;
             $output .= "</li>\n";
         }
 
         $output .= '</ul>';
     }
 
     return $output;
 }
 
 /**
  * Theming links (theme_link())
  * @see http://api.drupal.org/api/drupal/includes!theme.inc/function/theme_link/7
  *
  */
 function YOURTHEMENAME_link($variables) {
     /**
      * @see http://drupal.stackexchange.com/questions/27907/enable-a-nodes-menu-item-when-on-that-node/27922
      */
     if (YOURTHEMENAME_link_should_be_hidden($variables['path'])) {
         return '';
     }
 
     return '<a href="' . check_plain(url($variables['path'], $variables['options'])) . '"' . drupal_attributes($variables['options']['attributes']) . '>' . ($variables['options']['html'] ? $variables['text'] : check_plain($variables['text'])) . '</a>';
 }
 
 // ....