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class LinkImageField in Link Image Field 8

Plugin implementation of the 'LinkImageField' field type.

Plugin annotation


@FieldType(
  id = "linkimagefield",
  label = @Translation("Link Image"),
  description = @Translation("An edit widget for image files that display as a link, including a preview of the image."),
  default_widget = "linkimagefield_widget",
  default_formatter = "linkimagefield"
)

Hierarchy

Expanded class hierarchy of LinkImageField

File

lib/Drupal/linkimagefield/Plugin/Field/FieldType/LinkImageField.php, line 20

Namespace

Drupal\linkimagefield\Plugin\Field\FieldType
View source 
class LinkImageField extends ImageItem {

  /**
   * {@inheritdoc}
   */
  public static function defaultInstanceSettings() {
    return array(
      'longdesc_field' => '0',
      'url_settings' => array(
        'url' => '',
        'rel_field' => '0',
        'class_field' => '0',
        'custom_target' => '0',
        'target' => '_self',
      ),
    ) + parent::defaultInstanceSettings();
  }

  /**
   * {@inheritdoc}
   */
  public static function schema(FieldDefinitionInterface $field_definition) {
    return array(
      'columns' => array(
        'target_id' => array(
          'description' => 'The ID of the file entity.',
          'type' => 'int',
          'not null' => FALSE,
          'unsigned' => TRUE,
        ),
        'alt' => array(
          'description' => "Alternative image text, for the image's 'alt' attribute.",
          'type' => 'varchar',
          'length' => 128,
          'not null' => FALSE,
        ),
        'longdesc' => array(
          'description' => "A link to a page with a long description of the image, for the image's 'londesc' attribute.",
          'type' => 'varchar',
          'length' => 128,
          'not null' => FALSE,
        ),
        'title' => array(
          'description' => "Image title text, for the image's 'title' attribute.",
          'type' => 'varchar',
          'length' => 128,
          'not null' => FALSE,
        ),
        'url' => array(
          'description' => "The URL used for the image link.",
          'type' => 'varchar',
          'length' => 128,
          'not null' => FALSE,
        ),
        'target' => array(
          'description' => "The target type of the image link.",
          'type' => 'varchar',
          'length' => 128,
          'not null' => FALSE,
        ),
        'class' => array(
          'description' => "For adding a class attribute to the anchor.",
          'type' => 'varchar',
          'length' => 128,
          'not null' => FALSE,
        ),
        'rel' => array(
          'description' => "A relation tag for bots or lightboxes.",
          'type' => 'varchar',
          'length' => 128,
          'not null' => FALSE,
        ),
        'width' => array(
          'description' => 'The width of the image in pixels.',
          'type' => 'int',
          'unsigned' => TRUE,
        ),
        'height' => array(
          'description' => 'The height of the image in pixels.',
          'type' => 'int',
          'unsigned' => TRUE,
        ),
      ),
      'indexes' => array(
        'target_id' => array(
          'target_id',
        ),
      ),
      'foreign keys' => array(
        'target_id' => array(
          'table' => 'file_managed',
          'columns' => array(
            'target_id' => 'fid',
          ),
        ),
      ),
    );
  }

  /**
   * {@inheritdoc}
   */
  public static function propertyDefinitions(FieldDefinitionInterface $field_definition) {
    $properties = parent::propertyDefinitions($field_definition);
    return $properties;
  }

  /**
   * {@inheritdoc}
   */
  public function instanceSettingsForm(array $form, array &$form_state) {
    $element = parent::instanceSettingsForm($form, $form_state);
    $settings = $this
      ->getSettings();
    $element['url_settings'] = array(
      '#type' => 'details',
      '#title' => t('URL Link settings'),
      '#open' => TRUE,
      '#weight' => 0,
    );
    $element['url_settings']['url'] = array(
      '#type' => 'textfield',
      '#title' => t('Default URL'),
      '#description' => t('Provide a well-formed URL.  This will be the default url linked to by provided images.'),
      '#default_value' => $settings['url_settings']['url'],
      '#maxlength' => '255',
    );
    $element['url_settings']['rel_field'] = array(
      '#type' => 'checkbox',
      '#title' => t('Enable link <em>rel</em> field'),
      '#default_value' => $settings['url_settings']['rel_field'],
      '#description' => t('Allow rel attributes to be added to links'),
    );
    $element['url_settings']['class_field'] = array(
      '#type' => 'checkbox',
      '#title' => t('Enable link <em>class</em> field'),
      '#default_value' => $settings['url_settings']['class_field'],
      '#description' => t('Allow classes to be added to links'),
    );
    $target_options = _linkimagefield_widget_url_target_options();
    $element['url_settings']['custom_target'] = array(
      '#type' => 'checkbox',
      '#title' => t('Enable custom target'),
      '#default_value' => $settings['url_settings']['custom_target'],
      '#description' => t('Enable user to provide alternate target frame for link.'),
    );
    $element['url_settings']['target'] = array(
      '#type' => 'select',
      '#title' => t('Default Target'),
      '#description' => t('Select a default target type.'),
      '#default_value' => $settings['url_settings']['target'],
      '#options' => $target_options,
      '#maxlength' => '255',
    );
    $element['longdesc_field'] = array(
      '#type' => 'checkbox',
      '#title' => t('Enable <em>Longdesc</em> field'),
      '#default_value' => $settings['longdesc_field'],
      '#description' => t('Allow the longdesc attribute to be added to images'),
      '#weight' => 10,
    );
    return $element;
  }

}

Members

Namesort descending Modifiers Type Description Overrides
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
EntityReferenceItem::calculateDependencies public static function Calculates dependencies for field items. Overrides FieldItemBase::calculateDependencies
EntityReferenceItem::calculateStorageDependencies public static function Calculates dependencies for field items on the storage level. Overrides FieldItemBase::calculateStorageDependencies
EntityReferenceItem::fieldSettingsAjaxProcess public static function Render API callback: Processes the field settings form and allows access to the form state.
EntityReferenceItem::fieldSettingsAjaxProcessElement public static function Adds entity_reference specific properties to AJAX form elements from the field settings form.
EntityReferenceItem::fieldSettingsFormValidate public static function Form element validation handler; Invokes selection plugin's validation.
EntityReferenceItem::formProcessMergeParent public static function Render API callback: Moves entity_reference specific Form API elements (i.e. 'handler_settings') up a level for easier processing by the validation and submission handlers.
EntityReferenceItem::getConstraints public function Gets a list of validation constraints. Overrides TypedData::getConstraints
EntityReferenceItem::getPossibleOptions public function Returns an array of possible values with labels for display. Overrides OptionsProviderInterface::getPossibleOptions
EntityReferenceItem::getPossibleValues public function Returns an array of possible values. Overrides OptionsProviderInterface::getPossibleValues
EntityReferenceItem::getRandomBundle protected static function Gets a bundle for a given entity type and selection options.
EntityReferenceItem::getSettableOptions public function Returns an array of settable values with labels for display. Overrides OptionsProviderInterface::getSettableOptions
EntityReferenceItem::getSettableValues public function Returns an array of settable values. Overrides OptionsProviderInterface::getSettableValues
EntityReferenceItem::getValue public function Gets the data value. Overrides Map::getValue
EntityReferenceItem::hasNewEntity public function Determines whether the item holds an unsaved entity.
EntityReferenceItem::isEmpty public function Determines whether the data structure is empty. Overrides Map::isEmpty
EntityReferenceItem::mainPropertyName public static function Returns the name of the main property, if any. Overrides FieldItemBase::mainPropertyName
EntityReferenceItem::onChange public function React to changes to a child property or item. Overrides Map::onChange
EntityReferenceItem::onDependencyRemoval public static function Informs the plugin that a dependency of the field will be deleted. Overrides FieldItemBase::onDependencyRemoval
EntityReferenceItem::settingsAjax public static function Ajax callback for the handler settings form.
EntityReferenceItem::settingsAjaxSubmit public static function Submit handler for the non-JS case.
EntityReferenceItem::setValue public function Sets the data value. Overrides FieldItemBase::setValue
FieldItemBase::delete public function Defines custom delete behavior for field values. Overrides FieldItemInterface::delete 2
FieldItemBase::deleteRevision public function Defines custom revision delete behavior for field values. Overrides FieldItemInterface::deleteRevision
FieldItemBase::fieldSettingsFromConfigData public static function Returns a settings array in the field type's canonical representation. Overrides FieldItemInterface::fieldSettingsFromConfigData 1
FieldItemBase::fieldSettingsToConfigData public static function Returns a settings array that can be stored as a configuration value. Overrides FieldItemInterface::fieldSettingsToConfigData 1
FieldItemBase::getEntity public function Gets the entity that field belongs to. Overrides FieldItemInterface::getEntity
FieldItemBase::getFieldDefinition public function Gets the field definition. Overrides FieldItemInterface::getFieldDefinition
FieldItemBase::getLangcode public function Gets the langcode of the field values held in the object. Overrides FieldItemInterface::getLangcode
FieldItemBase::getSetting protected function Returns the value of a field setting.
FieldItemBase::getSettings protected function Returns the array of field settings.
FieldItemBase::postSave public function Defines custom post-save behavior for field values. Overrides FieldItemInterface::postSave 2
FieldItemBase::storageSettingsFromConfigData public static function Returns a settings array in the field type's canonical representation. Overrides FieldItemInterface::storageSettingsFromConfigData 2
FieldItemBase::storageSettingsToConfigData public static function Returns a settings array that can be stored as a configuration value. Overrides FieldItemInterface::storageSettingsToConfigData 2
FieldItemBase::view public function Returns a renderable array for a single field item. Overrides FieldItemInterface::view
FieldItemBase::writePropertyValue protected function Different to the parent Map class, we avoid creating property objects as far as possible in order to optimize performance. Thus we just update $this->values if no property object has been created yet. Overrides Map::writePropertyValue
FieldItemBase::__construct public function Constructs a TypedData object given its definition and context. Overrides TypedData::__construct 1
FieldItemBase::__get public function Magic method: Gets a property value. Overrides FieldItemInterface::__get 2
FieldItemBase::__isset public function Magic method: Determines whether a property is set. Overrides FieldItemInterface::__isset
FieldItemBase::__set public function Magic method: Sets a property value. Overrides FieldItemInterface::__set 1
FieldItemBase::__unset public function Magic method: Unsets a property. Overrides FieldItemInterface::__unset
FileItem::doGetUploadLocation protected static function Determines the URI for a file field.
FileItem::getPreconfiguredOptions public static function Returns preconfigured field options for a field type. Overrides EntityReferenceItem::getPreconfiguredOptions
FileItem::getUploadLocation public function Determines the URI for a file field.
FileItem::getUploadValidators public function Retrieves the upload validators for a file field.
FileItem::validateDirectory public static function Form API callback
FileItem::validateExtensions public static function Form API callback.
FileItem::validateMaxFilesize public static function Form API callback.
ImageItem::$entityManager protected property The entity manager.
ImageItem::defaultFieldSettings public static function Defines the field-level settings for this plugin. Overrides FileItem::defaultFieldSettings
ImageItem::defaultImageForm protected function Builds the default_image details element.
ImageItem::defaultStorageSettings public static function Defines the storage-level settings for this plugin. Overrides FileItem::defaultStorageSettings
ImageItem::fieldSettingsForm public function Returns a form for the field-level settings. Overrides FileItem::fieldSettingsForm
ImageItem::generateSampleValue public static function Generates placeholder field values. Overrides FileItem::generateSampleValue
ImageItem::getEntityManager Deprecated protected function Gets the entity manager.
ImageItem::isDisplayed public function Determines whether an item should be displayed when rendering the field. Overrides FileItem::isDisplayed
ImageItem::preSave public function Defines custom presave behavior for field values. Overrides EntityReferenceItem::preSave
ImageItem::storageSettingsForm public function Returns a form for the storage-level settings. Overrides FileItem::storageSettingsForm
ImageItem::validateDefaultImageForm public static function Validates the managed_file element for the default Image form.
ImageItem::validateResolution public static function Element validate function for resolution fields.
LinkImageField::defaultInstanceSettings public static function
LinkImageField::instanceSettingsForm public function
LinkImageField::propertyDefinitions public static function Defines field item properties. Overrides ImageItem::propertyDefinitions
LinkImageField::schema public static function Returns the schema for the field. Overrides ImageItem::schema
Map::$definition protected property The data definition. Overrides TypedData::$definition
Map::$properties protected property The array of properties.
Map::$values protected property An array of values for the contained properties.
Map::applyDefaultValue public function Applies the default value. Overrides TypedData::applyDefaultValue 4
Map::get public function Gets a property object. Overrides ComplexDataInterface::get
Map::getIterator public function
Map::getProperties public function Gets an array of property objects. Overrides ComplexDataInterface::getProperties
Map::getString public function Returns a string representation of the data. Overrides TypedData::getString
Map::set public function Sets a property value. Overrides ComplexDataInterface::set
Map::toArray public function Returns an array of all property values. Overrides ComplexDataInterface::toArray 1
Map::__clone public function Magic method: Implements a deep clone.
StringTranslationTrait::$stringTranslation protected property The string translation service. 1
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 2
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.
TypedData::$name protected property The property name.
TypedData::$parent protected property The parent typed data object.
TypedData::createInstance public static function Constructs a TypedData object given its definition and context. Overrides TypedDataInterface::createInstance
TypedData::getDataDefinition public function Gets the data definition. Overrides TypedDataInterface::getDataDefinition
TypedData::getName public function Returns the name of a property or item. Overrides TypedDataInterface::getName
TypedData::getParent public function Returns the parent data structure; i.e. either complex data or a list. Overrides TypedDataInterface::getParent
TypedData::getPluginDefinition public function Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition
TypedData::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
TypedData::getPropertyPath public function Returns the property path of the data. Overrides TypedDataInterface::getPropertyPath
TypedData::getRoot public function Returns the root of the typed data tree. Overrides TypedDataInterface::getRoot
TypedData::setContext public function Sets the context of a property or item via a context aware parent. Overrides TypedDataInterface::setContext
TypedData::validate public function Validates the currently set data value. Overrides TypedDataInterface::validate
TypedDataTrait::$typedDataManager protected property The typed data manager used for creating the data types.
TypedDataTrait::getTypedDataManager public function Gets the typed data manager. 2
TypedDataTrait::setTypedDataManager public function Sets the typed data manager. 2