class Range
Same name and namespace in other branches
- 9 core/lib/Drupal/Core/Render/Element/Range.php \Drupal\Core\Render\Element\Range
- 8.9.x core/lib/Drupal/Core/Render/Element/Range.php \Drupal\Core\Render\Element\Range
- 11.x core/lib/Drupal/Core/Render/Element/Range.php \Drupal\Core\Render\Element\Range
Provides a slider for input of a number within a specific range.
Provides an HTML5 input element with type of "range".
Properties:
- #min: Minimum value (defaults to 0).
- #max: Maximum value (defaults to 100).
Refer to \Drupal\Core\Render\Element\Number for additional properties.
Usage example:
$form['quantity'] = [
'#type' => 'range',
'#title' => $this->t('Quantity'),
];Hierarchy
- class \Drupal\Component\Plugin\PluginBase extends \Drupal\Component\Plugin\PluginInspectionInterface, \Drupal\Component\Plugin\DerivativeInspectionInterface
- class \Drupal\Core\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait implements \Drupal\Component\Plugin\PluginBase
- class \Drupal\Core\Render\Element\RenderElementBase extends \Drupal\Core\Render\Element\ElementInterface implements \Drupal\Core\Plugin\PluginBase
- class \Drupal\Core\Render\Element\FormElementBase extends \Drupal\Core\Render\Element\FormElementInterface implements \Drupal\Core\Render\Element\RenderElementBase
- class \Drupal\Core\Render\Element\Number implements \Drupal\Core\Render\Element\FormElementBase
- class \Drupal\Core\Render\Element\Range implements \Drupal\Core\Render\Element\Number
- class \Drupal\Core\Render\Element\Number implements \Drupal\Core\Render\Element\FormElementBase
- class \Drupal\Core\Render\Element\FormElementBase extends \Drupal\Core\Render\Element\FormElementInterface implements \Drupal\Core\Render\Element\RenderElementBase
- class \Drupal\Core\Render\Element\RenderElementBase extends \Drupal\Core\Render\Element\ElementInterface implements \Drupal\Core\Plugin\PluginBase
- class \Drupal\Core\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait implements \Drupal\Component\Plugin\PluginBase
Expanded class hierarchy of Range
See also
\Drupal\Core\Render\Element\Number
5 string references to 'Range'
- ContextDefinitionIsSatisfiedTest::providerTestIsSatisfiedBy in core/
tests/ Drupal/ Tests/ Core/ Plugin/ Context/ ContextDefinitionIsSatisfiedTest.php - Provides test data for ::testIsSatisfiedBy().
- FormTestDisabledElementsForm::buildForm in core/
modules/ system/ tests/ modules/ form_test/ src/ Form/ FormTestDisabledElementsForm.php - Form constructor.
- form_test.routing.yml in core/
modules/ system/ tests/ modules/ form_test/ form_test.routing.yml - core/modules/system/tests/modules/form_test/form_test.routing.yml
- form_test.routing.yml in core/
modules/ system/ tests/ modules/ form_test/ form_test.routing.yml - core/modules/system/tests/modules/form_test/form_test.routing.yml
- Range::preRenderRange in core/
lib/ Drupal/ Core/ Render/ Element/ Range.php - Prepares a #type 'range' render element for input.html.twig.
File
-
core/
lib/ Drupal/ Core/ Render/ Element/ Range.php, line 29
Namespace
Drupal\Core\Render\ElementView source
class Range extends Number {
/**
* {@inheritdoc}
*/
public function getInfo() {
$info = parent::getInfo();
$class = static::class;
return [
'#min' => 0,
'#max' => 100,
'#pre_render' => [
[
$class,
'preRenderRange',
],
],
'#theme' => 'input__range',
] + $info;
}
/**
* Prepares a #type 'range' render element for input.html.twig.
*
* @param array $element
* An associative array containing the properties of the element.
* Properties used: #title, #value, #description, #min, #max, #attributes,
* #step.
*
* @return array
* The $element with prepared variables ready for input.html.twig.
*/
public static function preRenderRange($element) {
$element['#attributes']['type'] = 'range';
Element::setAttributes($element, [
'id',
'name',
'value',
'step',
'min',
'max',
]);
static::setAttributes($element, [
'form-range',
]);
return $element;
}
/**
* {@inheritdoc}
*/
public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
if ($input === '') {
$offset = ($element['#max'] - $element['#min']) / 2;
// Round to the step.
if (strtolower($element['#step']) != 'any') {
$steps = round($offset / $element['#step']);
$offset = $element['#step'] * $steps;
}
return $element['#min'] + $offset;
}
}
}Members
| Title Sort descending | Modifiers | Object type | Summary | Overriden Title | Overrides |
|---|---|---|---|---|---|
| FormElementBase::processAutocomplete | public static | function | Adds autocomplete functionality to elements. | 1 | |
| FormElementBase::processPattern | public static | function | #process callback for #pattern form element property. | 1 | |
| FormElementBase::validatePattern | public static | function | #element_validate callback for #pattern form element property. | 1 | |
| Number::preRenderNumber | public static | function | Prepares a #type 'number' render element for input.html.twig. | ||
| Number::validateNumber | public static | function | Form element validation handler for #type 'number'. | ||
| PluginInspectionInterface::getPluginDefinition | public | function | Gets the definition of the plugin implementation. | 6 | |
| PluginInspectionInterface::getPluginId | public | function | Gets the plugin ID of the plugin instance. | 2 | |
| Range::getInfo | public | function | Returns the element properties for this element. | Overrides Number::getInfo | |
| Range::preRenderRange | public static | function | Prepares a #type 'range' render element for input.html.twig. | ||
| Range::valueCallback | public static | function | Determines how user input is mapped to an element's #value property. | Overrides FormElementBase::valueCallback | |
| RenderElementBase::preRenderAjaxForm | public static | function | Adds Ajax information about an element to communicate with JavaScript. | 2 | |
| RenderElementBase::preRenderGroup | public static | function | Adds members of this group as actual elements for rendering. | 2 | |
| RenderElementBase::processAjaxForm | public static | function | Form element processing handler for the #ajax form property. | 3 | |
| RenderElementBase::processGroup | public static | function | Arranges elements into groups. | 2 | |
| RenderElementBase::setAttributes | public static | function | Sets a form element's class attribute. | Overrides ElementInterface::setAttributes | 2 |
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