danielebarchiesi@0: <?php
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * @file
danielebarchiesi@0:  *
danielebarchiesi@0:  * Plugin to provide a node context. A node context is a node wrapped in a
danielebarchiesi@0:  * context object that can be utilized by anything that accepts contexts.
danielebarchiesi@0:  */
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Plugins are described by creating a $plugin array which will be used
danielebarchiesi@0:  * by the system that includes this file.
danielebarchiesi@0:  */
danielebarchiesi@0: $plugin = array(
danielebarchiesi@0:   'title' => t("Node"),
danielebarchiesi@0:   'description' => t('A node object.'),
danielebarchiesi@0:   'context' => 'ctools_context_create_node',
danielebarchiesi@0:   'edit form' => 'ctools_context_node_settings_form',
danielebarchiesi@0:   'defaults' => array('nid' => ''),
danielebarchiesi@0:   'keyword' => 'node',
danielebarchiesi@0:   'context name' => 'node',
danielebarchiesi@0:   'convert list' => 'ctools_context_node_convert_list',
danielebarchiesi@0:   'convert' => 'ctools_context_node_convert',
danielebarchiesi@0:   'placeholder form' => array(
danielebarchiesi@0:     '#type' => 'textfield',
danielebarchiesi@0:     '#description' => t('Enter the node ID of a node for this context.'),
danielebarchiesi@0:   ),
danielebarchiesi@0:   // This context is deprecated and should not be usable in the UI.
danielebarchiesi@0:   'no ui' => TRUE,
danielebarchiesi@0:   'no required context ui' => TRUE,
danielebarchiesi@0:   'superceded by' => 'entity:node',
danielebarchiesi@0: );
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * It's important to remember that $conf is optional here, because contexts
danielebarchiesi@0:  * are not always created from the UI.
danielebarchiesi@0:  */
danielebarchiesi@0: function ctools_context_create_node($empty, $data = NULL, $conf = FALSE) {
danielebarchiesi@0:   $context = new ctools_context('node');
danielebarchiesi@0:   $context->plugin = 'node';
danielebarchiesi@0: 
danielebarchiesi@0:   if ($empty) {
danielebarchiesi@0:     return $context;
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   if ($conf) {
danielebarchiesi@0:     $nid = is_array($data) && isset($data['nid']) ? $data['nid'] : (is_object($data) ? $data->nid : 0);
danielebarchiesi@0: 
danielebarchiesi@0:     if (module_exists('translation')) {
danielebarchiesi@0:       if ($translation = module_invoke('translation', 'node_nid', $nid, $GLOBALS['language']->language)) {
danielebarchiesi@0:         $nid = $translation;
danielebarchiesi@0:         $reload = TRUE;
danielebarchiesi@0:       }
danielebarchiesi@0:     }
danielebarchiesi@0: 
danielebarchiesi@0:     if (is_array($data) || !empty($reload)) {
danielebarchiesi@0:       $data = node_load($nid);
danielebarchiesi@0:     }
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   if (!empty($data)) {
danielebarchiesi@0:     $context->data     = $data;
danielebarchiesi@0:     $context->title    = $data->title;
danielebarchiesi@0:     $context->argument = $data->nid;
danielebarchiesi@0: 
danielebarchiesi@0:     $context->restrictions['type'] = array($data->type);
danielebarchiesi@0:     return $context;
danielebarchiesi@0:   }
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: function ctools_context_node_settings_form($form, &$form_state) {
danielebarchiesi@0:   $conf = &$form_state['conf'];
danielebarchiesi@0: 
danielebarchiesi@0:   $form['node'] = array(
danielebarchiesi@0:     '#title' => t('Enter the title or NID of a node'),
danielebarchiesi@0:     '#type' => 'textfield',
danielebarchiesi@0:     '#maxlength' => 512,
danielebarchiesi@0:     '#autocomplete_path' => 'ctools/autocomplete/node',
danielebarchiesi@0:     '#weight' => -10,
danielebarchiesi@0:   );
danielebarchiesi@0: 
danielebarchiesi@0:   if (!empty($conf['nid'])) {
danielebarchiesi@0:     $info = db_query('SELECT * FROM {node} WHERE nid = :nid', array(':nid' => $conf['nid']))->fetchObject();
danielebarchiesi@0:     if ($info) {
danielebarchiesi@0:       $link = l(t("'%title' [node id %nid]", array('%title' => $info->title, '%nid' => $info->nid)), "node/$info->nid", array('attributes' => array('target' => '_blank', 'title' => t('Open in new window')), 'html' => TRUE));
danielebarchiesi@0:       $form['node']['#description'] = t('Currently set to !link', array('!link' => $link));
danielebarchiesi@0:     }
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   $form['nid'] = array(
danielebarchiesi@0:     '#type' => 'value',
danielebarchiesi@0:     '#value' => $conf['nid'],
danielebarchiesi@0:   );
danielebarchiesi@0: 
danielebarchiesi@0:   $form['set_identifier'] = array(
danielebarchiesi@0:     '#type' => 'checkbox',
danielebarchiesi@0:     '#default_value' => FALSE,
danielebarchiesi@0:     '#title' => t('Reset identifier to node title'),
danielebarchiesi@0:     '#description' => t('If checked, the identifier will be reset to the node title of the selected node.'),
danielebarchiesi@0:   );
danielebarchiesi@0: 
danielebarchiesi@0:   return $form;
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Validate a node.
danielebarchiesi@0:  */
danielebarchiesi@0: function ctools_context_node_settings_form_validate($form, &$form_state) {
danielebarchiesi@0:   // Validate the autocomplete
danielebarchiesi@0:   if (empty($form_state['values']['nid']) && empty($form_state['values']['node'])) {
danielebarchiesi@0:     form_error($form['node'], t('You must select a node.'));
danielebarchiesi@0:     return;
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   if (empty($form_state['values']['node'])) {
danielebarchiesi@0:     return;
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   $nid          = $form_state['values']['node'];
danielebarchiesi@0:   $preg_matches = array();
danielebarchiesi@0:   $match        = preg_match('/\[id: (\d+)\]/', $nid, $preg_matches);
danielebarchiesi@0:   if (!$match) {
danielebarchiesi@0:     $match = preg_match('/^id: (\d+)/', $nid, $preg_matches);
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   if ($match) {
danielebarchiesi@0:     $nid = $preg_matches[1];
danielebarchiesi@0:   }
danielebarchiesi@0:   if (is_numeric($nid)) {
danielebarchiesi@0:     $node = db_query('SELECT nid, status FROM {node} WHERE nid = :nid', array(':nid' => $nid))->fetchObject();
danielebarchiesi@0:   }
danielebarchiesi@0:   else {
danielebarchiesi@0:     $node = db_query('SELECT nid, status FROM {node} WHERE LOWER(title) = LOWER(:title)', array(':title' => $nid))->fetchObject();
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   // Do not allow unpublished nodes to be selected by unprivileged users
danielebarchiesi@0:   if (!$node || (empty($node->status) && !(user_access('administer nodes')))) {
danielebarchiesi@0:     form_error($form['node'], t('Invalid node selected.'));
danielebarchiesi@0:   }
danielebarchiesi@0:   else {
danielebarchiesi@0:     form_set_value($form['nid'], $node->nid, $form_state);
danielebarchiesi@0:   }
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: function ctools_context_node_settings_form_submit($form, &$form_state) {
danielebarchiesi@0:   if ($form_state['values']['set_identifier']) {
danielebarchiesi@0:     $node = node_load($form_state['values']['nid']);
danielebarchiesi@0:     $form_state['values']['identifier'] = $node->title;
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   // This will either be the value set previously or a value set by the
danielebarchiesi@0:   // validator.
danielebarchiesi@0:   $form_state['conf']['nid'] = $form_state['values']['nid'];
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Provide a list of ways that this context can be converted to a string.
danielebarchiesi@0:  */
danielebarchiesi@0: function ctools_context_node_convert_list() {
danielebarchiesi@0:   $tokens = token_info();
danielebarchiesi@0:   foreach ($tokens['tokens']['node'] as $id => $info) {
danielebarchiesi@0:     if (!isset($list[$id])) {
danielebarchiesi@0:       $list[$id] = $info['name'];
danielebarchiesi@0:     }
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   return $list;
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Convert a context into a string.
danielebarchiesi@0:  */
danielebarchiesi@0: function ctools_context_node_convert($context, $type) {
danielebarchiesi@0:   $tokens = token_info();
danielebarchiesi@0:   if (isset($tokens['tokens']['node'][$type])) {
danielebarchiesi@0:     $values = token_generate('node', array($type => $type), array('node' => $context->data));
danielebarchiesi@0:     if (isset($values[$type])) {
danielebarchiesi@0:       return $values[$type];
danielebarchiesi@0:     }
danielebarchiesi@0:   }
danielebarchiesi@0: }