class RedirectSourceWidget in Redirect 8

Plugin implementation of the 'link' widget for the redirect module.

Note that this field is meant only for the source field of the redirect entity as it drops validation for non existing paths.

Plugin annotation


@FieldWidget(
  id = "redirect_source",
  label = @Translation("Redirect source"),
  field_types = {
    "link"
  },
  settings = {
    "placeholder_url" = "",
    "placeholder_title" = ""
  }
)

Hierarchy

class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
- class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
  - class \Drupal\Core\Field\PluginSettingsBase implements DependentPluginInterface, PluginSettingsInterface
    class \Drupal\Core\Field\WidgetBase implements WidgetInterface, ContainerFactoryPluginInterface uses AllowedTagsXssTrait
    class \Drupal\redirect\Plugin\Field\FieldWidget\RedirectSourceWidget

Expanded class hierarchy of RedirectSourceWidget

File

src/Plugin/Field/FieldWidget/RedirectSourceWidget.php, line 32

Namespace

Drupal\redirect\Plugin\Field\FieldWidget

View source

class RedirectSourceWidget extends WidgetBase {

  /**
   * {@inheritdoc}
   */
  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    $default_url_value = $items[$delta]->path;
    if ($items[$delta]->query) {
      $default_url_value .= '?' . http_build_query($items[$delta]->query);
    }
    $element['path'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('Path'),
      '#placeholder' => $this
        ->getSetting('placeholder_url'),
      '#default_value' => $default_url_value,
      '#maxlength' => 2048,
      '#required' => $element['#required'],
      '#field_prefix' => Url::fromRoute('<front>', [], [
        'absolute' => TRUE,
      ])
        ->toString(),
      '#attributes' => [
        'data-disable-refocus' => 'true',
      ],
    ];

    // If creating new URL add checks.
    if ($items
      ->getEntity()
      ->isNew()) {
      $element['status_box'] = [
        '#prefix' => '<div id="redirect-link-status">',
        '#suffix' => '</div>',
      ];
      $source_path = $form_state
        ->getValue([
        'redirect_source',
        0,
        'path',
      ]);
      if ($source_path) {
        $source_path = trim($source_path);

        // Warning about creating a redirect from a valid path.
        // @todo - Hmm... exception driven logic. Find a better way how to
        //   determine if we have a valid path.
        try {
          \Drupal::service('router')
            ->match('/' . $form_state
            ->getValue([
            'redirect_source',
            0,
            'path',
          ]));
          $element['status_box'][]['#markup'] = '<div class="messages messages--warning">' . $this
            ->t('The source path %path is likely a valid path. It is preferred to <a href="@url-alias">create URL aliases</a> for existing paths rather than redirects.', [
            '%path' => $source_path,
            '@url-alias' => Url::fromRoute('entity.path_alias.add_form')
              ->toString(),
          ]) . '</div>';
        } catch (ResourceNotFoundException $e) {

          // Do nothing, expected behaviour.
        } catch (AccessDeniedHttpException $e) {

          // @todo Source lookup results in an access denied, deny access?
        }

        // Warning about the path being already redirected.
        $parsed_url = UrlHelper::parse($source_path);
        $path = isset($parsed_url['path']) ? $parsed_url['path'] : NULL;
        if (!empty($path)) {

          /** @var \Drupal\redirect\RedirectRepository $repository */
          $repository = \Drupal::service('redirect.repository');
          $redirects = $repository
            ->findBySourcePath($path);
          if (!empty($redirects)) {
            $redirect = array_shift($redirects);
            $element['status_box'][]['#markup'] = '<div class="messages messages--warning">' . $this
              ->t('The base source path %source is already being redirected. Do you want to <a href="@edit-page">edit the existing redirect</a>?', [
              '%source' => $source_path,
              '@edit-page' => $redirect
                ->toUrl('edit-form')
                ->toString(),
            ]) . '</div>';
          }
        }
      }
      $element['path']['#ajax'] = [
        'callback' => 'redirect_source_link_get_status_messages',
        'wrapper' => 'redirect-link-status',
      ];
    }
    return $element;
  }

  /**
   * {@inheritdoc}
   */
  public function massageFormValues(array $values, array $form, FormStateInterface $form_state) {
    $values = parent::massageFormValues($values, $form, $form_state);

    // It is likely that the url provided for this field is not existing and
    // so the logic in the parent method did not set any defaults. Just run
    // through all url values and add defaults.
    foreach ($values as &$value) {
      if (!empty($value['path'])) {

        // In case we have query process the url.
        if (strpos($value['path'], '?') !== FALSE) {
          $url = UrlHelper::parse($value['path']);
          $value['path'] = $url['path'];
          $value['query'] = $url['query'];
        }
      }
    }
    return $values;
  }

}

Members

Name	Modifiers	Type	Description	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.
DependencySerializationTrait::$_entityStorages	protected	property	An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
MessengerTrait::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	1
PluginBase::$pluginDefinition	protected	property	The plugin implementation definition.	1
PluginBase::$pluginId	protected	property	The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR		constant	A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId	public	function	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition	3
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable	public	function	Determines if the plugin is configurable.
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 $settings.
PluginSettingsBase::onDependencyRemoval	public	function	Informs the plugin that some configuration it depends on will be deleted. Overrides PluginSettingsInterface::onDependencyRemoval	3
PluginSettingsBase::setSetting	public	function	Sets the value of a setting for the plugin. Overrides PluginSettingsInterface::setSetting
PluginSettingsBase::setSettings	public	function	Sets the settings for the plugin. Overrides PluginSettingsInterface::setSettings
PluginSettingsBase::setThirdPartySetting	public	function	Sets the value of a third-party setting. Overrides ThirdPartySettingsInterface::setThirdPartySetting
PluginSettingsBase::unsetThirdPartySetting	public	function	Unsets a third-party setting. Overrides ThirdPartySettingsInterface::unsetThirdPartySetting
RedirectSourceWidget::formElement	public	function	Returns the form for a single field widget. Overrides WidgetInterface::formElement
RedirectSourceWidget::massageFormValues	public	function	Massages the form values into the format expected for field values. Overrides WidgetBase::massageFormValues
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
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::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
WidgetBase::__construct	public	function	Constructs a WidgetBase object. Overrides PluginBase::__construct	5

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