danielebarchiesi@0: <?php
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * @file
danielebarchiesi@0:  * Plugin to provide access control/visibility based on length of
danielebarchiesi@0:  * a string context.
danielebarchiesi@0:  */
danielebarchiesi@0: 
danielebarchiesi@0: $plugin = array(
danielebarchiesi@0:   'title' => t("String: length"),
danielebarchiesi@0:   'description' => t('Control access by length of string context.'),
danielebarchiesi@0:   'callback' => 'ctools_string_length_ctools_access_check',
danielebarchiesi@0:   'settings form' => 'ctools_string_length_ctools_access_settings',
danielebarchiesi@0:   'summary' => 'ctools_string_length_ctools_access_summary',
danielebarchiesi@0:   'required context' => new ctools_context_required(t('String'), 'string'),
danielebarchiesi@0:   'defaults' => array('operator' => '=', 'length' => 0),
danielebarchiesi@0: );
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Settings form for the 'by role' access plugin.
danielebarchiesi@0:  */
danielebarchiesi@0: function ctools_string_length_ctools_access_settings($form, &$form_state, $conf) {
danielebarchiesi@0:   $form['settings']['operator'] = array(
danielebarchiesi@0:     '#type' => 'radios',
danielebarchiesi@0:     '#title' => t('Operator'),
danielebarchiesi@0:     '#options' => array(
danielebarchiesi@0:       '>' => t('Greater than'),
danielebarchiesi@0:       '>=' => t('Greater than or equal to'),
danielebarchiesi@0:       '=' => t('Equal to'),
danielebarchiesi@0:       '!=' => t('Not equal to'),
danielebarchiesi@0:       '<' => t('Less than'),
danielebarchiesi@0:       '<=' => t('Less than or equal to'),
danielebarchiesi@0:     ),
danielebarchiesi@0:     '#default_value' => $conf['operator'],
danielebarchiesi@0:   );
danielebarchiesi@0:   $form['settings']['length'] = array(
danielebarchiesi@0:     '#type' => 'textfield',
danielebarchiesi@0:     '#title' => t('Length of string'),
danielebarchiesi@0:     '#size' => 3,
danielebarchiesi@0:     '#default_value' => $conf['length'],
danielebarchiesi@0:     '#description' => t('Access/visibility will be granted based on string context length.'),
danielebarchiesi@0:   );
danielebarchiesi@0:   return $form;
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Check for access.
danielebarchiesi@0:  */
danielebarchiesi@0: function ctools_string_length_ctools_access_check($conf, $context) {
danielebarchiesi@0:   if (empty($context) || empty($context->data)) {
danielebarchiesi@0:     $length = 0;
danielebarchiesi@0:   }
danielebarchiesi@0:   else {
danielebarchiesi@0:     $length = drupal_strlen($context->data);
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   switch ($conf['operator']) {
danielebarchiesi@0:     case '<':
danielebarchiesi@0:       return $length < $conf['length'];
danielebarchiesi@0:     case '<=':
danielebarchiesi@0:       return $length <= $conf['length'];
danielebarchiesi@0:     case '==':
danielebarchiesi@0:       return $length == $conf['length'];
danielebarchiesi@0:     case '!=':
danielebarchiesi@0:       return $length != $conf['length'];
danielebarchiesi@0:     case '>':
danielebarchiesi@0:       return $length > $conf['length'];
danielebarchiesi@0:     case '>=':
danielebarchiesi@0:       return $length >= $conf['length'];
danielebarchiesi@0:   }
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Provide a summary description based upon the checked roles.
danielebarchiesi@0:  */
danielebarchiesi@0: function ctools_string_length_ctools_access_summary($conf, $context) {
danielebarchiesi@0:   return t('@identifier must be @comp @length characters', array('@identifier' => $context->identifier, '@comp' => $conf['operator'], '@length' => $conf['length']));
danielebarchiesi@0: }