View source
<?php
namespace Drupal\webform\Element;
use Drupal\Core\Render\Element;
use Drupal\Core\Render\Element\FormElement;
use Drupal\Core\Form\FormStateInterface;
use Drupal\webform\Utility\WebformElementHelper;
class WebformHeight extends FormElement {
use WebformCompositeFormElementTrait;
const HEIGHT_SYMBOL = 'symbol';
const HEIGHT_ABBREVIATE = 'abbreviate';
public function getInfo() {
$class = get_class($this);
return [
'#input' => TRUE,
'#process' => [
[
$class,
'processWebformHeight',
],
],
'#pre_render' => [
[
$class,
'preRenderWebformCompositeFormElement',
],
],
'#required' => FALSE,
'#height_type' => 'number',
'#height_format' => '',
'#feet__min' => 0,
'#feet__max' => 8,
'#inches__step' => 1,
];
}
public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
if ($input === FALSE) {
if (!isset($element['#default_value']) || $element['#default_value'] === '') {
$element['#default_value'] = [
'feet' => NULL,
'inches' => NULL,
];
}
else {
$value = (double) $element['#default_value'];
$feet = floor($value / 12);
$inches = $value - $feet * 12;
$element['#default_value'] = [
'feet' => $feet,
'inches' => $inches,
];
}
return $element['#default_value'];
}
else {
$element['#default_value'] = $input;
return $input;
}
}
public static function processWebformHeight(&$element, FormStateInterface $form_state, &$complete_form) {
switch ($element['#height_format']) {
case static::HEIGHT_SYMBOL:
$feet_plural = '″';
$feet_singular = '″';
$inches_plural = '′';
$inches_singular = '′';
break;
case static::HEIGHT_ABBREVIATE:
$feet_plural = t('ft', [], [
'context' => 'Imperial height unit abbreviate',
]);
$feet_singular = t('ft', [], [
'context' => 'Imperial height unit abbreviate',
]);
$inches_plural = t('in', [], [
'context' => 'Imperial height unit abbreviate',
]);
$inches_singular = t('in', [], [
'context' => 'Imperial height unit abbreviate',
]);
break;
default:
$feet_plural = t('feet', [], [
'context' => 'Imperial height unit',
]);
$feet_singular = t('foot', [], [
'context' => 'Imperial height unit',
]);
$inches_plural = t('inches', [], [
'context' => 'Imperial height unit',
]);
$inches_singular = t('inch', [], [
'context' => 'Imperial height unit',
]);
break;
}
$select_element_defaults = [
'#type' => 'select',
'#empty_option' => '',
];
$element['#tree'] = TRUE;
$feet_range = range($element['#feet__min'], $element['#feet__max']);
$feet_options = array_combine($feet_range, $feet_range);
$inches_step = $element['#inches__step'];
$inches_range = range(0, 11, $inches_step);
if ($inches_step !== 1 && floor($inches_step) !== $inches_step) {
$decimals = strlen(substr(strrchr($inches_step, '.'), 1));
$inches_range = array_map(function ($number) use ($decimals) {
return number_format($number, $decimals);
}, $inches_range);
}
$inches_options = array_combine($inches_range, $inches_range);
$element['container'] = [
'#type' => 'container',
'#attributes' => [
'class' => [
'form--inline',
],
],
];
$t_args = [
'@title' => $element['#title'],
'@unit' => t('Feet', [], [
'context' => 'Imperial height unit',
]),
];
$element['container']['feet'] = [
'#title' => t('@title: @unit', $t_args),
'#title_display' => 'invisible',
'#required' => $element['#required'],
'#error_no_message' => TRUE,
'#default_value' => $element['#default_value']['feet'],
'#parents' => array_merge($element['#parents'], [
'feet',
]),
];
$t_args = [
'@title' => $element['#title'],
'@unit' => t('Inches', [], [
'context' => 'Imperial height unit',
]),
];
$element['container']['inches'] = [
'#title' => t('@title: @unit', $t_args),
'#title_display' => 'invisible',
'#field_prefix' => ' ',
'#required' => $element['#required'],
'#error_no_message' => TRUE,
'#default_value' => $element['#default_value']['inches'],
'#parents' => array_merge($element['#parents'], [
'inches',
]),
];
switch ($element['#height_type']) {
case 'select':
$element['container']['feet'] += $select_element_defaults + [
'#field_suffix' => $feet_plural,
'#options' => $feet_options,
];
$element['container']['inches'] += $select_element_defaults + [
'#field_suffix' => $inches_plural,
'#options' => $inches_options,
];
break;
case 'select_suffix':
foreach ($feet_options as $option_value => $option_text) {
$feet_options[$option_value] .= ' ' . ($option_value === 1 ? $feet_singular : $feet_plural);
}
foreach ($inches_options as $option_value => $option_text) {
$inches_options[$option_value] .= ' ' . ($option_value === 1 ? $inches_singular : $inches_plural);
}
$element['container']['feet'] += $select_element_defaults + [
'#options' => $feet_options,
];
$element['container']['inches'] += $select_element_defaults + [
'#options' => $inches_options,
];
break;
default:
$element['container']['feet'] += [
'#type' => 'number',
'#field_suffix' => $feet_plural,
'#min' => $element['#feet__min'],
'#max' => $element['#feet__max'],
'#step' => 1,
];
$element['container']['inches'] += [
'#type' => 'number',
'#field_suffix' => $inches_plural,
'#min' => 0,
'#max' => 11,
'#step' => $inches_step,
];
break;
}
foreach ($element as $key => $value) {
if (strpos($key, '__') !== FALSE) {
list($element_key, $property_key) = explode('__', ltrim($key, '#'));
if (isset($element['container'][$element_key])) {
$element['container'][$element_key]["#{$property_key}"] = $value;
}
}
}
$element_manager = \Drupal::service('plugin.manager.webform.element');
$element_manager
->buildElement($element['container']['feet'], $complete_form, $form_state);
$element_manager
->buildElement($element['container']['inches'], $complete_form, $form_state);
$element += [
'#element_validate' => [],
];
array_unshift($element['#element_validate'], [
get_called_class(),
'validateWebformHeight',
]);
return $element;
}
public static function validateWebformHeight(&$element, FormStateInterface $form_state, &$complete_form) {
$height_element =& $element['container'];
if ($height_element['feet']['#value'] === '' && $height_element['inches']['#value'] === '') {
$value = '';
}
else {
$feet = (double) $height_element['feet']['#value'];
$inches = (double) $height_element['inches']['#value'];
$value = $feet * 12 + $inches;
}
if (Element::isVisibleElement($element) && $element['#required'] && empty($value)) {
WebformElementHelper::setRequiredError($element, $form_state);
}
$form_state
->setValueForElement($height_element['feet'], NULL);
$form_state
->setValueForElement($height_element['inches'], NULL);
$value = (string) $value;
$element['#value'] = $value;
$form_state
->setValueForElement($element, $value);
}
}