class OptionsButtonsWidget

Same name in other branches
  1. 9 core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/OptionsButtonsWidget.php \Drupal\Core\Field\Plugin\Field\FieldWidget\OptionsButtonsWidget
  2. 10 core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/OptionsButtonsWidget.php \Drupal\Core\Field\Plugin\Field\FieldWidget\OptionsButtonsWidget
  3. 11.x core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/OptionsButtonsWidget.php \Drupal\Core\Field\Plugin\Field\FieldWidget\OptionsButtonsWidget

Plugin implementation of the 'options_buttons' widget.

Plugin annotation


@FieldWidget(
  id = "options_buttons",
  label = @Translation("Check boxes/radio buttons"),
  field_types = {
    "boolean",
    "entity_reference",
    "list_integer",
    "list_float",
    "list_string",
  },
  multiple_values = TRUE
)

Hierarchy

Expanded class hierarchy of OptionsButtonsWidget

File

core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/OptionsButtonsWidget.php, line 24

Namespace

Drupal\Core\Field\Plugin\Field\FieldWidget
View source
class OptionsButtonsWidget extends OptionsWidgetBase {
    
    /**
     * {@inheritdoc}
     */
    public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
        $element = parent::formElement($items, $delta, $element, $form, $form_state);
        $options = $this->getOptions($items->getEntity());
        $selected = $this->getSelectedOptions($items);
        // If required and there is one single option, preselect it.
        if ($this->required && count($options) == 1) {
            reset($options);
            $selected = [
                key($options),
            ];
        }
        if ($this->multiple) {
            $element += [
                '#type' => 'checkboxes',
                '#default_value' => $selected,
                '#options' => $options,
            ];
        }
        else {
            $element += [
                '#type' => 'radios',
                // Radio buttons need a scalar value. Take the first default value, or
                // default to NULL so that the form element is properly recognized as
                // not having a default value.
'#default_value' => $selected ? reset($selected) : NULL,
                '#options' => $options,
            ];
        }
        return $element;
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getEmptyLabel() {
        if (!$this->required && !$this->multiple) {
            return t('N/A');
        }
    }

}

Members

Title Sort descending Modifiers Object type Summary Overriden Title Overrides
AllowedTagsXssTrait::allowedTags public function Returns a list of tags allowed by AllowedTagsXssTrait::fieldFilterXss().
AllowedTagsXssTrait::displayAllowedTags public function Returns a human-readable list of allowed tags for display in help texts.
AllowedTagsXssTrait::fieldFilterXss public function Filters an HTML string to prevent XSS vulnerabilities.
OptionsButtonsWidget::formElement public function Returns the form for a single field widget. Overrides OptionsWidgetBase::formElement
OptionsButtonsWidget::getEmptyLabel protected function Returns the empty option label to add to the list of options, if any. Overrides OptionsWidgetBase::getEmptyLabel
OptionsWidgetBase::$column protected property Abstract over the actual field columns, to allow different field types to
reuse those widgets.
OptionsWidgetBase::getOptions protected function Returns the array of options for the widget.
OptionsWidgetBase::getSelectedOptions protected function Determines selected options from the incoming field values.
OptionsWidgetBase::sanitizeLabel protected function Sanitizes a string label to display as an option. 1
OptionsWidgetBase::supportsGroups protected function Indicates whether the widgets support optgroups. 1
OptionsWidgetBase::validateElement public static function Form validation handler for widget elements. 1
OptionsWidgetBase::__construct public function Constructs a WidgetBase object. Overrides WidgetBase::__construct 1
PluginInspectionInterface::getPluginDefinition public function Gets the definition of the plugin implementation. 6
PluginInspectionInterface::getPluginId public function Gets the plugin_id of the plugin instance. 2
PluginSettingsBase::$defaultSettingsMerged protected property Whether default settings have been merged into the current $settings.
PluginSettingsBase::$thirdPartySettings protected property The plugin settings injected by third party modules.
PluginSettingsBase::calculateDependencies public function Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies 6
PluginSettingsBase::defaultSettings public static function Defines the default settings for this plugin. Overrides PluginSettingsInterface::defaultSettings 42
PluginSettingsBase::getSetting public function Returns the value of a setting, or its default value if absent. Overrides PluginSettingsInterface::getSetting
PluginSettingsBase::getSettings public function Returns the array of settings, including defaults for missing settings. Overrides PluginSettingsInterface::getSettings
PluginSettingsBase::getThirdPartyProviders public function Gets the list of third parties that store information. Overrides ThirdPartySettingsInterface::getThirdPartyProviders
PluginSettingsBase::getThirdPartySetting public function Gets the value of a third-party setting. Overrides ThirdPartySettingsInterface::getThirdPartySetting
PluginSettingsBase::getThirdPartySettings public function Gets all third-party settings of a given module. Overrides ThirdPartySettingsInterface::getThirdPartySettings
PluginSettingsBase::mergeDefaults protected function Merges default settings values into $settings.
PluginSettingsBase::onDependencyRemoval public function Informs the plugin that some configuration it depends on will be deleted. Overrides PluginSettingsInterface::onDependencyRemoval 3
PluginSettingsBase::setSetting public function Sets the value of a setting for the plugin. Overrides PluginSettingsInterface::setSetting
PluginSettingsBase::setSettings public function Sets the settings for the plugin. Overrides PluginSettingsInterface::setSettings
PluginSettingsBase::setThirdPartySetting public function Sets the value of a third-party setting. Overrides ThirdPartySettingsInterface::setThirdPartySetting
PluginSettingsBase::unsetThirdPartySetting public function Unsets a third-party setting. Overrides ThirdPartySettingsInterface::unsetThirdPartySetting
WidgetBase::$fieldDefinition protected property The field definition.
WidgetBase::$settings protected property The widget settings. Overrides PluginSettingsBase::$settings
WidgetBase::addMoreAjax public static function Ajax callback for the "Add another item" button.
WidgetBase::addMoreSubmit public static function Submission handler for the "Add another item" button.
WidgetBase::afterBuild public static function After-build handler for field elements in a form.
WidgetBase::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create 5
WidgetBase::errorElement public function Assigns a field-level validation error to the right widget sub-element. Overrides WidgetInterface::errorElement 8
WidgetBase::extractFormValues public function Extracts field values from submitted form values. Overrides WidgetBaseInterface::extractFormValues 2
WidgetBase::flagErrors public function Reports field-level validation errors against actual form elements. Overrides WidgetBaseInterface::flagErrors 2
WidgetBase::form public function Creates a form element for a field. Overrides WidgetBaseInterface::form 3
WidgetBase::formMultipleElements protected function Special handling to create form elements for multiple values. 1
WidgetBase::formSingleElement protected function Generates the form element for a single copy of the widget.
WidgetBase::getFieldSetting protected function Returns the value of a field setting.
WidgetBase::getFieldSettings protected function Returns the array of field settings.
WidgetBase::getFilteredDescription protected function Returns the filtered field description.
WidgetBase::getWidgetState public static function Retrieves processing information about the widget from $form_state. Overrides WidgetBaseInterface::getWidgetState
WidgetBase::getWidgetStateParents protected static function Returns the location of processing information within $form_state.
WidgetBase::handlesMultipleValues protected function Returns whether the widget handles multiple values.
WidgetBase::isApplicable public static function Returns if the widget can be used for the provided field. Overrides WidgetInterface::isApplicable 4
WidgetBase::isDefaultValueWidget protected function Returns whether the widget used for default value form.
WidgetBase::massageFormValues public function Massages the form values into the format expected for field values. Overrides WidgetInterface::massageFormValues 7
WidgetBase::settingsForm public function Returns a form to configure settings for the widget. Overrides WidgetInterface::settingsForm 16
WidgetBase::settingsSummary public function Returns a short summary for the current widget settings. Overrides WidgetInterface::settingsSummary 15
WidgetBase::setWidgetState public static function Stores processing information about the widget in $form_state. Overrides WidgetBaseInterface::setWidgetState

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