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<?php
/**
* Class helper_plugin_bureaucracy_fieldfieldset
*
* Creates a new set of fields, which optional can be shown/hidden depending on the value of another field above it.
*/
class helper_plugin_bureaucracy_fieldfieldset extends helper_plugin_bureaucracy_field {
protected $mandatory_args = 1;
/** @var array with zero, one entry (fieldname) or two entries (fieldname and match value) */
public $depends_on = array();
/**
* Arguments:
* - cmd
* - label (optional)
* - field name where switching depends on (optional)
* - match value (optional)
*
* @param array $args The tokenized definition, only split at spaces
*/
public function initialize($args) {
// get standard arguments
$this->opt = array('cmd' => array_shift($args));
if (count($args) > 0) {
$this->opt['label'] = array_shift($args);
$this->opt['display'] = $this->opt['label'];
$this->depends_on = $args;
}
}
/**
* Render the top of the fieldset as XHTML
*
* @param array $params Additional HTML specific parameters
* @param Doku_Form $form The target Doku_Form object
* @param int $formid unique identifier of the form which contains this field
*/
function renderfield($params, Doku_Form $form, $formid) {
$form->startFieldset(hsc($this->getParam('display')));
if (!empty($this->depends_on)) {
$dependencies = array_map('hsc',(array) $this->depends_on);
if (count($this->depends_on) > 1) {
$msg = 'Only edit this fieldset if ' .
'“<span class="bureaucracy_depends_fname">%s</span>” '.
'is set to “<span class="bureaucracy_depends_fvalue">%s</span>”.';
} else {
$msg = 'Only edit this fieldset if ' .
'“<span class="bureaucracy_depends_fname">%s</span>” is set.';
}
$form->addElement('<p class="bureaucracy_depends">' . vsprintf($msg, $dependencies) . '</p>');
}
}
/**
* Handle a post to the fieldset
*
* When fieldset is closed, set containing fields to hidden
*
* @param null $value field value of fieldset always empty
* @param helper_plugin_bureaucracy_field[] $fields (reference) form fields (POST handled upto $this field)
* @param int $index index number of field in form
* @param int $formid unique identifier of the form which contains this field
* @return bool Whether the passed value is valid
*/
public function handle_post($value, &$fields, $index, $formid) {
if(empty($this->depends_on)) {
return true;
}
// search the field where fieldset depends on in fields before fieldset
$hidden = false;
for ($n = 0 ; $n < $index; ++$n) {
$field = $fields[$n];
if ($field->getParam('label') != $this->depends_on[0]) {
continue;
}
if(count($this->depends_on) > 1) {
$hidden = $field->getParam('value') != $this->depends_on[1];
} else {
$hidden = !$field->isSet_();
}
break;
}
// mark fields after this fieldset as hidden
if ($hidden) {
$this->hidden = true;
for ($n = $index + 1 ; $n < count($fields) ; ++$n) {
$field = $fields[$n];
if ($field->getFieldType() === 'fieldset') {
break;
}
$field->hidden = true;
}
}
return true;
}
/**
* Get an arbitrary parameter
*
* @param string $name
* @return mixed|null
*/
function getParam($name) {
if($name === 'value') {
return null;
} else {
return parent::getParam($name);
}
}
}
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