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<?php
require_once 'maxlength.inc';
function maxlength_perm() {
return array(
ADMINISTER_MAXLENGTH,
);
}
function maxlength_help($section) {
switch ($section) {
case 'admin/help#maxlength':
case 'admin/modules#description':
return t('Sets a maximum length for body fields and shows a counter that is updated as you type.');
break;
}
}
function maxlength_menu($may_cache) {
$items = array();
if ($may_cache) {
}
else {
$items[] = array(
'path' => 'admin/settings/maxlength',
'title' => t('Maxlength'),
'description' => t('Set maximum length for body fields.'),
'callback' => 'drupal_get_form',
'callback arguments' => '_maxlength_admin_settings',
'access' => user_access(ADMINISTER_MAXLENGTH),
'type' => MENU_NORMAL_ITEM,
);
}
return $items;
}
function _maxlength_admin_settings() {
$form = array();
foreach (node_get_types() as $type => $name) {
$code = MAXLENGTH_NODE_TYPE . $type;
$type_info = node_get_types('type', $type);
$form['nodetypes'][$type] = array(
'#type' => 'fieldset',
'#title' => $name->name,
'#collapsible' => TRUE,
'#collapsed' => strlen(variable_get($code . '_t', '') . variable_get($code . '_b', '')) == 0,
);
$form['nodetypes'][$type][$code . '_t'] = array(
'#type' => 'textfield',
'#title' => t('!label Maxlength', array(
'!label' => $type_info->title_label,
)),
'#field_suffix' => t('characters'),
'#return_value' => 1,
'#default_value' => variable_get($code . '_t', ''),
'#description' => t('Maximum number of characters allowed for the title field of this content type. Leave blank for an unlimited size.'),
);
$form['nodetypes'][$type][$code . '_b'] = array(
'#type' => 'textfield',
'#title' => t('!label Maxlength', array(
'!label' => $type_info->body_label,
)),
'#field_suffix' => t('characters'),
'#return_value' => 1,
'#default_value' => variable_get($code . '_b', ''),
'#description' => t('Maximum number of characters allowed for the body field of this content type. Leave blank for an unlimited size.'),
);
}
return system_settings_form($form);
}
function maxlength_elements() {
$type = array();
if (_maxlength_limit_body()) {
$type['textarea'] = array(
'#theme' => 'maxlength_textarea',
);
}
return $type;
}
function _maxlength_limit_body() {
if (arg(0) == 'node') {
if (arg(1) == 'add') {
$type = str_replace('-', '_', arg(2));
return strlen(variable_get(MAXLENGTH_NODE_TYPE . $type . '_b', '')) > 0;
}
if (arg(2) == 'edit') {
$nid = intval(arg(1));
return strlen(variable_get(MAXLENGTH_NODE_TYPE . _maxlength_node_type_from_id($nid) . '_b', '')) > 0;
}
}
return FALSE;
}
function theme_maxlength_textarea($element) {
$prefix = '';
if ($element['#name'] == 'body') {
$path = drupal_get_path('module', 'maxlength');
drupal_add_js($path . '/maxlength.js');
if (arg(1) == 'add') {
$type = str_replace('-', '_', arg(2));
}
else {
$type = _maxlength_node_type_from_id(intval(arg(1)));
}
$limit = intval(variable_get(MAXLENGTH_NODE_TYPE . $type . '_b', ''));
$remaining = $limit - drupal_strlen($element['#value']);
if ($remaining < 0) {
drupal_set_message(t('%body_field_label truncated to %limit characters!', array(
'%body_field_label' => $element['#title'],
'%limit' => $limit,
)), 'error');
$element['#value'] = drupal_substr($element['#value'], 0, $limit);
$remaining = 0;
}
$element['#attributes']['onchange'] = 'maxlength_limit(this, ' . $limit . ');';
$element['#attributes']['onkeyup'] = 'maxlength_limit(this, ' . $limit . ');';
$prefix = t('<div id="maxlength-counter">Content limited to !limit characters, remaining: <strong id="maxlength-counter-remaining">!remaining</strong></div>', array(
'!limit' => $limit,
'!remaining' => $remaining,
));
}
return theme_textarea($element) . $prefix;
}
function _maxlength_node_type_from_id($nid) {
$node = node_load($nid);
return $node->type;
}
function maxlength_form_alter($form_id, &$form) {
if (isset($form['type'])) {
$type = $form['type']['#value'];
if ($type . '_node_form' == $form_id) {
if (strlen(variable_get(MAXLENGTH_NODE_TYPE . $type . '_t', '')) > 0) {
$limit = intval(variable_get(MAXLENGTH_NODE_TYPE . $type . '_t', ''));
$form['title']['#maxlength'] = $limit;
if (drupal_strlen($form['title']['#default_value']) > $limit) {
$form['title']['#default_value'] = drupal_substr($form['title']['#default_value'], 0, $limit);
drupal_set_message(t('%title_field_label truncated to %limit characters!', array(
'%title_field_label' => $form['title']['#title'],
'%limit' => $limit,
)), 'error');
}
}
}
}
}
function maxlength_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
$code = MAXLENGTH_NODE_TYPE . $node->type;
if (strlen(variable_get($code . '_b', '')) > 0) {
switch ($op) {
case 'validate':
$form = $a3;
$limit = intval(variable_get($code . '_b', ''));
if (drupal_strlen($node->body) > $limit) {
form_set_error('body', t('The maximum number of characters has been exceeded!'));
}
break;
}
}
}
function maxlength_node_type($op, $info) {
switch ($op) {
case 'delete':
$code = MAXLENGTH_NODE_TYPE . $info->type;
variable_del($code . '_t');
variable_del($code . '_b');
break;
case 'update':
if (!empty($info->old_type) && $info->old_type != $info->type) {
$code_old = MAXLENGTH_NODE_TYPE . $info->old_type;
$code_new = MAXLENGTH_NODE_TYPE . $info->type;
$max_title = variable_get($code_old . '_t', '');
$max_body = variable_get($code_old . '_b', '');
variable_set($code_new . '_t', $max_title);
variable_set($code_new . '_b', $max_body);
variable_del($code_old . '_t');
variable_del($code_old . '_b');
}
break;
}
}
