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