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<?php
/**
* Translation class
*
* Automatic generation of inputs and textareas for i18n
*
* @author Jan-Hendrik Willms <tleilax+studip@gmail.com>
* @author Peter Thienel <pthienel@data-quest.de>
* @author Elmar Ludwig <elmar.ludwig@uos.de>
* @author Florian Bieringer
* @license GPL2 or any later version
*/
class I18N
{
/**
* Creates a set of HTML input elements for this form element in text form.
* One element will be generated for each configured content language.
*
* @param string $name HTML name of the Inputfild
* @param I18NString $value (Needs to be an i18n input string)
* @param array $attributes Additional attributes of the input
* @return I18N Crafted input
*/
public static function input($name, $value, array $attributes = [])
{
return new static('i18n/input.php', $name, $value, $attributes);
}
/**
* Create a set of HTML textarea elements for this form element in text form.
* One element will be generated for each configured content language.
*
* @param string $name HTML name of the Textarea
* @param I18NString $value (Needs to be an i18n input string)
* @param array $attributes Additional attributes of the input
* @return I18N Crafted textarea
*/
public static function textarea($name, $value, array $attributes = [])
{
return new static('i18n/textarea.php', $name, $value, $attributes);
}
/**
* Returns whether the i18n functionality is enabeld i.e. more than the
* default language is configured in config_defaults.inc.php.
*
* @return bool True if i18n is enabled.
*/
public static function isEnabled()
{
return is_array($GLOBALS['CONTENT_LANGUAGES']) &&
count($GLOBALS['CONTENT_LANGUAGES']) > 1;
}
protected $template;
protected $name;
protected $value;
protected $attributes;
/**
* Protected constructor in order to always force a specific input type.
*
* @param string|Flexi_Template $template Template to use
* @param string $name Name of the element
* @param string|I18NString $value Value of the element
* @param array $attributes Additional variables for the
* element
*/
final protected function __construct($template, $name, $value, array $attributes)
{
$this->template = $GLOBALS['template_factory']->open($template);
$this->name = $name;
$this->value = $value instanceof I18NString
? $value
: new I18NString($value);
$this->attributes = $attributes;
}
/**
* Sets the readonly state of the element.
*
* @param bool $state State of the readonly attribute (default true)
* @return I18N object to allow chaining
*/
public function setReadonly($state = true)
{
$this->attributes['readonly'] = (bool) $state;
return $this;
}
/**
* MVV: Check user's permissions for an object and set the readonly state
* accordingly.
*
* @param ModuleManagementModel $object Object to check permissions for
* @param string $perm Permission to check (default create)
* @return I18N object to allow chaining
*/
public function checkMvvPerms(ModuleManagementModel $object, $perm = MvvPerm::PERM_WRITE)
{
$may_edit = MvvPerm::get($object)->haveFieldPerm($this->name, $perm);
return $this->setReadOnly(!$may_edit);
}
/**
* Renders the element as html.
*
* @param array $attributes Additional attributes
* @return string
*/
public function render(array $attributes = [])
{
$template = $this->template;
if (self::isEnabled()) {
$template->set_layout('i18n/group.php');
}
// Merge initially set attributes with current attributes
$attributes = array_merge($this->attributes, $attributes);
return $template->render([
'languages' => $GLOBALS['CONTENT_LANGUAGES'],
'base_lang' => key($GLOBALS['CONTENT_LANGUAGES']),
'wysiwyg' => in_array('wysiwyg', words($attributes['class'] ?? '')),
'name' => $this->name,
'value' => $this->value,
'attributes' => $attributes,
]);
}
/**
* Converts the object to a string by rendering it.
*
* @return string
* @see I18N::render()
*/
public function __toString()
{
return $this->render();
}
}
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