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