'.print_r(func_get_args(),true).'');
// return;
if ($form['#id'] == 'node-form') {
_maxlength_content_form_alter($form, $form_state, $form_id);
}
// Editing the content type
elseif ($form_id == 'node_type_form' && isset($form['identity']['type'])) {
_maxlength_content_type_form_alter($form, $form_state, $form_id);
}
// Editing a CCK text field.
elseif ($form_id == 'content_field_edit_form' AND isset($form['field']['max_length'])) {
_maxlength_cck_form_alter($form, $form_state, $form_id);
}
// Deleting a CCK text field.
elseif ($form_id == '_content_admin_field_remove') {
variable_del(MAXLENGTH_NODE_TYPE . $form['field_name']['#value']);
variable_del(MAXLENGTH_NODE_TYPE . $form['field_name']['#value'] .'_js');
variable_del(MAXLENGTH_NODE_TYPE . $form['field_name']['#value'] .'_text');
}
}
function _maxlength_content_form_alter(&$form, &$form_state, $form_id) {
$type = $form['type']['#value'];
// update the title as needed
_maxlength_format_element($form['title'], $form['title']['#default_value'], 'title', 'title', $type);
// $form['title']['#after_build'][] = 'maxlength_after_title';
// Update the body as needed
_maxlength_format_element($form['body_field']['body'], $form['body_field']['body']['#default_value'], 'body', 'body', $type);
if (module_exists('content')) {
// Get a list of all the CCK fields for this content type
$list = array_keys(content_fields(NULL, $type));
// Update CCK fields as needed
foreach ($list as $field) {
if (is_array($form[$field])) {
foreach (element_children($form[$field]) as $key) {
_maxlength_format_element($form[$field][$key], $form[$field][$key]['value'], $field, str_replace('_', '-', $field) .'-'. $key .'-value', $type);
}
}
}
}
}
function _maxlength_content_type_form_alter(&$form, &$form_state, $form_id) {
$type = $form['#node_type']->type;
$labels = array('-3' => 'title', '-1 ' => 'body');
foreach ($labels as $weight => $label) {
// bit of a hack to allow us to position the input fields correctly
$form['submission'][$label .'_label']['#weight'] = $weight - 1;
$form['submission'][MAXLENGTH_NODE_TYPE . $label] = array(
'#type' => 'fieldset',
'#weight' => $weight,
'#title' => t('Limit !type length', array('!type ' => $label)),
'#collapsible' => TRUE,
'#collapsed' => strlen(variable_get($type .'_'. $label, '')) == 0,
);
$form['submission'][MAXLENGTH_NODE_TYPE . $label][MAXLENGTH_NODE_TYPE . $label] = array(
'#type' => 'textfield',
'#title' => t('!label max length', array('!label' => ucwords($label))),
'#field_suffix' => t('characters'),
'#return_value' => 1,
'#size' => 4,
'#default_value' => variable_get(MAXLENGTH_NODE_TYPE . $label .'_'. $type, ''),
'#description' => t('Maximum number of characters allowed for the !type field of this content type. Leave blank for an unlimited size.', array('!type' => $label)) .'
'.
''. t('Please remember, it counts all characters, including HTML, so may not work as expected with rich text editors e.g. FCKeditor / tinyMCE.') .'',
);
$form['submission'][MAXLENGTH_NODE_TYPE . $label][MAXLENGTH_NODE_TYPE . $label .'_js'] = array(
'#type' => 'checkbox',
'#title' => t('Enable remaining characters countdown for the !label', array('!label' => ucwords($label))),
'#default_value' => variable_get(MAXLENGTH_NODE_TYPE . $label .'_js_'. $type, '0'),
'#description' => t('This will enable a Javascript based count down, as well as the client side validation for the !type field of this content type. If no limit set this is ignored.', array('!type' => $label)),
);
$form['submission'][MAXLENGTH_NODE_TYPE . $label][MAXLENGTH_NODE_TYPE . $label .'_text'] = array(
'#type' => 'textarea',
'#title' => t('!label count down message', array('!label' => ucwords($label))),
'#default_value' => variable_get(MAXLENGTH_NODE_TYPE . $label .'_text_'. $type, 'Content limited to !limit characters, remaining: !remaining'),
'#description' => t('The text used in the Javascript message under the !type input, where "!limit" and "!remaining" are replaced by the appropriate numbers.', array('!type' => $label)),
);
}
}
function _maxlength_cck_form_alter(&$form, &$form_state, $form_id) {
//if form is being loaded, add extra config fields
if (empty($form['#post'])) {
$new_fields = array();
foreach ($form['field'] as $key => $field) {
$new_fields[$key] = $field;
if ($key == 'max_length') {
$new_fields[MAXLENGTH_NODE_TYPE . $form['field_name']['#value'] .'_js'] = array(
'#type' => 'checkbox',
'#title' => t('Enable remaining characters countdown for this field'),
'#default_value' => variable_get(MAXLENGTH_NODE_TYPE . $form['field_name']['#value'] .'_js', '0'),
'#description' => t('This will enable a Javascript based count down, as well as the client side validation for this field. If no limit set this is ignored.'),
);
$new_fields[MAXLENGTH_NODE_TYPE . $form['field_name']['#value'] .'_text'] = array(
'#type' => 'textarea',
'#title' => t('Count down message'),
'#default_value' => variable_get(MAXLENGTH_NODE_TYPE . $form['field_name']['#value'] .'_text', 'Content limited to !limit characters, remaining: !remaining'),
'#description' => t('The text used in the Javascript message under the input, where "!limit" and "!remaining" are replaced by the appropriate numbers.'),
);
}
}
$form['field'] = $new_fields;
}
$form['#submit'][] = '_maxlength_cck_form_submit';
}
function _maxlength_cck_form_submit($form, &$form_state) {
//note, max lenght for the CCK field is stored in this way as for textareas, its not in $element var passed to theme functions.
variable_set(MAXLENGTH_NODE_TYPE . $form['field_name']['#value'], $form['#post']['max_length']);
variable_set(MAXLENGTH_NODE_TYPE . $form['field_name']['#value'] .'_js', $form['#post'][MAXLENGTH_NODE_TYPE . $form['field_name']['#value'] .'_js']);
variable_set(MAXLENGTH_NODE_TYPE . $form['field_name']['#value'] .'_text', $form['#post'][MAXLENGTH_NODE_TYPE . $form['field_name']['#value'] .'_text']);
}
/**
* Formats a form element to use maxlength value and use js.
*
* @arg array &$element
* The form element which should be maxlengthed.
* @arg string $value
* The current value of the field, for example the titletext.
* @arg string $field
* The name of the string.
* @arg string $id
* A CSS ID for js, does not need to be the same as the form field.
* @arg string $type
* What is the type of form element
*
* @TODO:
* Do we need all this parameters.
* Could this all be done without drupal_add_js and just theming of the form element.
* Can we use a theme function to let alter the placement of the maxlength text.
*/
function _maxlength_format_element(&$element, $value = '', $field, $id, $type = '') {
$values = _maxlength_get_values($field, $type);
if ($values !== FALSE AND isset($values['limit']) AND $values['limit'] AND $values['use_js']) {
$element['#after_build'][]='maxlength_elem_after';
return;
$path = drupal_get_path('module', 'maxlength');
drupal_add_js($path .'/maxlength.js');
// line breaks can be stored 2 or more chars, breaking the count.
$text = $value;
$text = str_replace("\r\n", '#', $text);
$text = str_replace("\n", '#', $text);
$text = str_replace("\r", '#', $text);
$remaining = $values['limit'] - drupal_strlen($text);
if ($remaining < 0) {
drupal_set_message(
t('%body_field_label truncated to %limit characters!',
array(
'%body_field_label' => $element['#title'],
'%limit' => $values['limit'])
),
'error'
);
$element['#default_value'] = drupal_substr($element['#default_value'], 0, $values['limit']);
$remaining = 0;
}
$js_settings = array(
'maxlength' => array(
'edit-'. $id => $values['limit'],
),
);
drupal_add_js($js_settings, 'setting');
$element['#suffix'] = ''. t($values['text'], array('!limit' => $values['limit'], '!remaining' => ''. $remaining .'')) .'
';
}
}
function maxlength_elem_after() {
$args = func_get_args();
$values = _maxlength_get_values($args[0]['#name'], $args[1]['values']['type']);
$path = drupal_get_path('module', 'maxlength');
drupal_add_js($path .'/maxlength.js');
$args[0]['#default_value'] = drupal_substr($args[0]['#default_value'], 0, $values['limit']);
$remaining = $values['limit'] - drupal_strlen($args[0]['#value']);
$js_settings = array(
'maxlength' => array(
'edit-'. $args[0]['#name'] => $values['limit'],
),
);
drupal_add_js($js_settings, 'setting');
$args[0]['#suffix'] = ''. t($values['text'], array('!limit' => $values['limit'], '!remaining' => ''. $remaining.'')) .'
';
return $args[0];
}
function _maxlength_get_values($field = 'body', $type = '') {
$values = '';
$values['limit'] = FALSE;
//CCK
if (strpos($field, 'field_') === 0) {
$values['limit'] = variable_get(MAXLENGTH_NODE_TYPE . $field, FALSE);
$values['use_js'] = variable_get(MAXLENGTH_NODE_TYPE . $field .'_js', FALSE);
$values['text'] = variable_get(MAXLENGTH_NODE_TYPE . $field .'_text', FALSE);
} //body and title
elseif ($type != '') {
$values['limit'] = variable_get(MAXLENGTH_NODE_TYPE . $field .'_'. $type, FALSE);
$values['use_js'] = variable_get(MAXLENGTH_NODE_TYPE . $field .'_js_'. $type, FALSE);
$values['text'] = variable_get(MAXLENGTH_NODE_TYPE . $field .'_text_'. $type, FALSE);
}
if ($values['limit']) {
return $values;
}
else {
return FALSE;
}
}
/**
* Implementation of hook_nodeapi().
*
* @TODO: Don't do the stuff on every nodeapi hook. First check for validate.
* @TODO: Validation for cck fields.
*/
function maxlength_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
$fields = array('title', 'body');
foreach ($fields as $field) {
$limit = intval(variable_get(MAXLENGTH_NODE_TYPE . $field .'_'. $node->type, ''));
if ($limit > 0) {
switch ($op) {
case 'validate':
$form = $a3;
$text = $node->$field;
$text = str_replace("\r\n", '#', $text);
$text = str_replace("\n", '#', $text);
$text = str_replace("\r", '#', $text);
// Editing the content
if ($form['#id'] == 'node-form') {
_maxlength_content_form_alter($a3 );
}
if (drupal_strlen($text) > $limit) {
form_set_error($field, t('The !field field has exceeded its maximum number of characters (!limit).', array('!limit' => $limit, '!field' => $field)));
}
break;
}
}
}
}
/**
* Implementation of hook_node_type().
*/
function maxlength_node_type($op, $info) {
$labels = array(
'title', 'js_title', 'text_title',
'body', 'js_body', 'text_body');
switch ($op) {
case 'delete':
foreach ($labels as $label) {
variable_del(MAXLENGTH_NODE_TYPE . $label . $info->type);
}
break;
case 'update':
if (!empty($info->old_type) && $info->old_type != $info->type) {
foreach ($labels as $label) {
$old_var = variable_get(MAXLENGTH_NODE_TYPE . $label . $info->old_type, '');
variable_set(MAXLENGTH_NODE_TYPE . $label . $info->type, $old_var);
variable_del(MAXLENGTH_NODE_TYPE . $label . $info->old_type);
}
}
break;
}
}