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<?php
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/**
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* @file
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* Helper functions for menu administration.
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*/
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/**
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* Produces a menu translation form.
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*/
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function i18n_menu_translation_form($form, $form_state, $translation_set = NULL, $item = NULL) {
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$translation_set = $translation_set ? $translation_set : i18n_translation_set_build('menu_link');
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$form['translation_set'] = array('#type' => 'value', '#value' => $translation_set);
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$translations = $translation_set->get_translations();
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// What to do with title? Let's make it a hidden field for now, some tests relay on it
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$form['title'] = array('#type' => 'hidden', '#default_value' => $translation_set->title);
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if ($item && ($lang = i18n_object_langcode($item))) {
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$translations[$lang] = $item;
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}
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$item = $item ? $item : array('mlid' => 0, 'menu_name' => '', 'plid' => 0);
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$item_lang = i18n_object_langcode($item);
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$form['translations'] = array(
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'#type' => 'fieldset',
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'#title' => t('Translations'),
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'#tree' => TRUE,
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'#description' => t('Enter items that will be considered as translations of each other.'),
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);
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foreach (i18n_language_list() as $langcode => $language_name) {
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if ($langcode == $item_lang) {
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// We've got a predefined item for this language
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$form['translations'][$langcode] = array('#type' => 'value', '#value' => $item['menu_name'] . ':' . $item['mlid']);
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$form['translations']['display'] = array(
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'#type' => 'item',
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'#title' => $language_name,
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'#markup' => check_plain($item['link_title']),
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);
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}
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else {
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// Generate a list of possible parents (not including this link or descendants).
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$options = i18n_menu_parent_options(menu_get_menus(), $item, $langcode);
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$default = isset($translations[$langcode]) ? $translations[$langcode]['menu_name'] . ':' . $translations[$langcode]['mlid'] : 'navigation:0';
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if (!isset($options[$default])) {
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$default = 'navigation:0';
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}
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$form['translations'][$langcode] = array(
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'#type' => 'select',
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'#title' => $language_name,
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'#default_value' => $default,
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'#options' => $options,
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'#description' => t('The maximum depth for a link and all its children is fixed at !maxdepth. Some menu links may not be available as parents if selecting them would exceed this limit.', array('!maxdepth' => MENU_MAX_DEPTH)),
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'#attributes' => array('class' => array('menu-title-select')),
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);
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}
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}
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$form['actions'] = array('#type' => 'actions');
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$form['actions']['update'] = array('#type' => 'submit', '#value' => t('Save'));
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if (!empty($translation_set->tsid)) {
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$form['actions']['delete'] = array('#type' => 'submit', '#value' => t('Delete'));
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}
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return $form;
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}
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/**
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* Process form validation
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*/
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function i18n_menu_translation_form_validate($form, &$form_state) {
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if ($form_state['values']['op'] == t('Save')) {
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$selected = 0;
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// example array('en' => 'navigation:0')
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$mlids = array_filter($form_state['values']['translations']);
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foreach ($mlids as $lang => $item_name) {
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list($menu_name, $mlid) = explode(':', $item_name);
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if ($mlid && ($item = menu_link_load($mlid)) && i18n_object_langcode($item)) {
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$selected++;
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}
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else {
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unset($form_state['values']['translations'][$lang]);
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}
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}
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if ($selected < 1) {
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form_set_error('translations', t('There are no translations to save.'));
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}
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}
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}
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/**
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* Menu item translation form submission
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*/
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function i18n_menu_translation_form_submit($form, &$form_state) {
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$translation_set = $form_state['values']['translation_set'];
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switch ($form_state['values']['op']) {
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case t('Save'):
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$mlids = array_filter($form_state['values']['translations']);
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$translation_set->reset_translations();
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foreach ($mlids as $lang => $item_name) {
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list($menu_name, $mlid) = explode(':', $item_name);
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$item = menu_link_load($mlid);
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$translation_set->add_item($item, $lang);
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}
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$translation_set->title = !empty($form_state['values']['title']) ? $form_state['values']['title'] : '';
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$translation_set->save(TRUE);
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drupal_set_message(t('The item translation has been saved.'));
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break;
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case t('Delete'):
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$translation_set->delete(TRUE);
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drupal_set_message(t('The item translation has been deleted.'));
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break;
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}
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$form_state['redirect'] = 'admin/structure/menu';
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}
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/**
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* Return a list of menu items that are valid possible parents for the given menu item.
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*
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* @param $menus
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* An array of menu names and titles, such as from menu_get_menus().
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* @param $item
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* The menu item or the node type for which to generate a list of parents.
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* If $item['mlid'] == 0 then the complete tree is returned.
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* @return
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* An array of menu link titles keyed on the a string containing the menu name
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* and mlid. The list excludes the given item and its children.
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*
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* @todo This has to be turned into a #process form element callback. The
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* 'menu_override_parent_selector' variable is entirely superfluous.
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*/
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function i18n_menu_parent_options($menus, $item, $langcode) {
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// The menu_links table can be practically any size and we need a way to
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// allow contrib modules to provide more scalable pattern choosers.
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// hook_form_alter is too late in itself because all the possible parents are
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// retrieved here, unless menu_override_parent_selector is set to TRUE.
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if (variable_get('i18n_menu_override_parent_selector', FALSE)) {
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return array();
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}
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// If no menu item, create a dummy one
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$item = $item ? $item : array('mlid' => 0);
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// Get menus that have a language or have language for terms
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$available_menus = array();
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foreach (menu_load_all() as $name => $menu) {
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if ($menu['i18n_mode'] & I18N_MODE_TRANSLATE) {
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$available_menus[$name] = $menu;
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}
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elseif ($menu['i18n_mode'] & I18N_MODE_LANGUAGE && $menu['language'] == $langcode) {
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$available_menus[$name] = $menu;
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}
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}
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// Disable i18n selection, enable after the query.
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$previous = i18n_select(FALSE);
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$options = _i18n_menu_get_options($menus, $available_menus, $item, $langcode);
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i18n_select($previous);
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return $options;
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}
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/**
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* Helper function to get the items of the given menu.
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*/
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function _i18n_menu_get_options($menus, $available_menus, $item, $langcode) {
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// If the item has children, there is an added limit to the depth of valid parents.
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if (isset($item['parent_depth_limit'])) {
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$limit = $item['parent_depth_limit'];
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}
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else {
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$limit = _menu_parent_depth_limit($item);
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}
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$options = array();
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foreach ($menus as $menu_name => $title) {
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if (isset($available_menus[$menu_name])) {
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if ($tree = i18n_menu_tree_all_data($menu_name, $langcode, NULL)) {
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$options[$menu_name . ':0'] = '<' . $title . '>';
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_menu_parents_recurse($tree, $menu_name, '--', $options, $item['mlid'], $limit);
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}
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}
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}
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return $options;
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}
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/**
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* Filter out menu items that have a different language
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*/
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function i18n_menu_tree_all_data($menu_name, $langcode, $link = NULL, $max_depth = NULL) {
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$tree = menu_tree_all_data($menu_name, $link, $max_depth);
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return _i18n_menu_tree_filter_items($tree, $langcode);
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}
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/**
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* Filter out menu items that have a different language
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*/
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function _i18n_menu_tree_filter_items($tree, $langcode) {
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$result = array();
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foreach ($tree as $key => $item) {
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$lang = i18n_object_langcode($item['link']);
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if (!empty($item['below'])) {
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$item['below'] = _i18n_menu_tree_filter_items($item['below'], $langcode);
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}
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if (!empty($item['link']['customized']) && $lang == $langcode) {
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$result[$key] = $item;
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}
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elseif (!empty($item['below'])) {
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// Keep for the tree but mark as unselectable.
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$item['link']['title'] = '(' . $item['link']['title'] . ')';
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$result[$key] = $item;
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}
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}
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return $result;
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}
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/**
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* Callback for menu translation tab.
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*/
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function i18n_menu_translation_item_overview($item, $translation_set = NULL) {
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if ($item['i18n_tsid']) {
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// Already part of a set, grab that set.
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$translation_set = i18n_translation_set_load($item['i18n_tsid']);
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$translations = $translation_set->get_translations();
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}
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else {
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// We have no translation source mlid, this could be a new set, emulate that.
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$translations = array($item['language'] => $item);
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}
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$type = variable_get('translation_language_type', LANGUAGE_TYPE_INTERFACE);
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$header = array(t('Language'), t('Title'), t('Operations'));
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$rows = array();
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foreach (i18n_language_list() as $langcode => $language_name) {
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$options = array();
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if (isset($translations[$langcode])) {
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// Existing translation in the translation set: display status.
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$translation_item = menu_link_load($translations[$langcode]['mlid']);
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$title = l($translation_item['link_title'], $translation_item['link_path']);
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$path = 'admin/structure/menu/item/' . $translation_item['mlid'];
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$options[] = l(t('edit'), $path);
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if ($translation_item['mlid'] == $item['mlid']) {
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$language_name = t('<strong>@language_name</strong> (source)', array('@language_name' => $language_name));
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}
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}
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else {
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// No such translation in the set yet: help user to create it.
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$title = t('n/a');
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$options[] = l(t('add translation'), 'admin/structure/menu/manage/' . $item['menu_name'] . '/add', array('query' => array('translation' => $item['mlid'], 'target' => $langcode) + drupal_get_destination()));
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}
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$rows[$langcode] = array(
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'language' => $language_name,
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'title' => $title,
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'operations' => implode(" | ", $options)
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);
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}
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drupal_set_title(t('Translations of menu item %title', array('%title' => $item['link_title'])), PASS_THROUGH);
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$build['translation_overview'] = array(
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'#theme' => 'table',
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'#header' => $header,
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'#rows' => $rows,
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);
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return $build;
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}
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