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   1  <?php
   2  // $Id: node_language.inc,v 1.7.2.3 2010/07/14 01:30:19 merlinofchaos Exp $
   3  
   4  /**
   5   * @file
   6   * Plugin to provide access control based upon node type.
   7   */
   8  
   9  /**
  10   * Plugins are described by creating a $plugin array which will be used
  11   * by the system that includes this file.
  12   */
  13  if (module_exists('locale')) {
  14    $plugin = array(
  15      'title' => t("Node: language"),
  16      'description' => t('Control access by node language.'),
  17      'callback' => 'ctools_node_language_ctools_access_check',
  18      'default' => array('language' => array()),
  19      'settings form' => 'ctools_node_language_ctools_access_settings',
  20      'settings form submit' => 'ctools_node_language_ctools_access_settings_submit',
  21      'summary' => 'ctools_node_language_ctools_access_summary',
  22      'required context' => new ctools_context_required(t('Node'), 'node'),
  23    );
  24  }
  25  
  26  /**
  27   * Settings form for the 'by node_language' access plugin
  28   */
  29  function ctools_node_language_ctools_access_settings(&$form, &$form_state, $conf) {
  30    $options = array(
  31      'current' => t('Current site language'),
  32      'default' => t('Default site language'),
  33      'no_language' => t('No language'),
  34    );
  35    $options = array_merge($options, locale_language_list());
  36    $form['settings']['language'] = array(
  37      '#title' => t('Language'),
  38      '#type' => 'checkboxes',
  39      '#options' => $options,
  40      '#description' => t('Pass only if the node is in one of the selected languages.'),
  41      '#default_value' => $conf['language'],
  42    );
  43  }
  44  
  45  /**
  46   * Check for access.
  47   */
  48  function ctools_node_language_ctools_access_check($conf, $context) {
  49    // As far as I know there should always be a context at this point, but this
  50    // is safe.
  51    if (empty($context) || empty($context->data) || !isset($context->data->language)) {
  52      return FALSE;
  53    }
  54  
  55    global $language;
  56  
  57    // Specialcase: if 'no language' is checked, return TRUE if the language field is
  58    // empty.
  59    if (!empty($conf['language']['no_language'])) {
  60      if (empty($context->data->language)) {
  61        return TRUE;
  62      }
  63    }
  64  
  65    // Specialcase: if 'current' is checked, return TRUE if the current site language
  66    // matches the node language.
  67    if (!empty($conf['language']['current'])) {
  68      if ($context->data->language == $language->language) {
  69        return TRUE;
  70      }
  71    }
  72  
  73    // Specialcase: If 'default' is checked, return TRUE if the default site language
  74    // matches the node language.
  75    if (!empty($conf['language']['default'])) {
  76      if ($context->data->language == language_default('language')) {
  77        return TRUE;
  78      }
  79    }
  80  
  81    if (array_filter($conf['language']) && empty($conf['language'][$context->data->language])) {
  82      return FALSE;
  83    }
  84  
  85    return TRUE;
  86  }
  87  
  88  /**
  89   * Provide a summary description based upon the checked node_languages.
  90   */
  91  function ctools_node_language_ctools_access_summary($conf, $context) {
  92    $languages = array(
  93      'current' => t('Current site language'),
  94      'default' => t('Default site language'),
  95      'no_language' => t('No language'),
  96    );
  97    $languages = array_merge($languages, locale_language_list());
  98  
  99    if (!isset($conf['language'])) {
 100      $conf['language'] = array();
 101    }
 102  
 103    $names = array();
 104    foreach (array_filter($conf['language']) as $language) {
 105      $names[] = $languages[$language];
 106    }
 107  
 108    if (empty($names)) {
 109      return t('@identifier is in any language', array('@identifier' => $context->identifier));
 110    }
 111  
 112    return format_plural(count($names), '@identifier language is "@languages"', '@identifier language is one of "@languages"', array('@languages' => implode(', ', $names), '@identifier' => $context->identifier));
 113  }
 114