PluginFormInterface.php

Same filename in other branches
  1. 8.9.x core/lib/Drupal/Core/Plugin/PluginFormInterface.php
  2. 10 core/lib/Drupal/Core/Plugin/PluginFormInterface.php
  3. 11.x core/lib/Drupal/Core/Plugin/PluginFormInterface.php

Namespace

Drupal\Core\Plugin

File

core/lib/Drupal/Core/Plugin/PluginFormInterface.php

View source
<?php

namespace Drupal\Core\Plugin;

use Drupal\Core\Form\FormStateInterface;

/**
 * Provides an interface for an embeddable plugin form.
 *
 * Plugins can implement this form directly, or a standalone class can be used.
 * Decoupled forms can implement \Drupal\Component\Plugin\PluginAwareInterface
 * in order to gain access to the plugin.
 *
 * @ingroup plugin_api
 */
interface PluginFormInterface {
    
    /**
     * Form constructor.
     *
     * Plugin forms are embedded in other forms. In order to know where the plugin
     * form is located in the parent form, #parents and #array_parents must be
     * known, but these are not available during the initial build phase. In order
     * to have these properties available when building the plugin form's
     * elements, let this method return a form element that has a #process
     * callback and build the rest of the form in the callback. By the time the
     * callback is executed, the element's #parents and #array_parents properties
     * will have been set by the form API. For more documentation on #parents and
     * #array_parents, see \Drupal\Core\Render\Element\FormElement.
     *
     * @param array $form
     *   An associative array containing the initial structure of the plugin form.
     * @param \Drupal\Core\Form\FormStateInterface $form_state
     *   The current state of the form. Calling code should pass on a subform
     *   state created through
     *   \Drupal\Core\Form\SubformState::createForSubform().
     *
     * @return array
     *   The form structure.
     */
    public function buildConfigurationForm(array $form, FormStateInterface $form_state);
    
    /**
     * Form validation handler.
     *
     * @param array $form
     *   An associative array containing the structure of the plugin form as built
     *   by static::buildConfigurationForm().
     * @param \Drupal\Core\Form\FormStateInterface $form_state
     *   The current state of the form. Calling code should pass on a subform
     *   state created through
     *   \Drupal\Core\Form\SubformState::createForSubform().
     */
    public function validateConfigurationForm(array &$form, FormStateInterface $form_state);
    
    /**
     * Form submission handler.
     *
     * @param array $form
     *   An associative array containing the structure of the plugin form as built
     *   by static::buildConfigurationForm().
     * @param \Drupal\Core\Form\FormStateInterface $form_state
     *   The current state of the form. Calling code should pass on a subform
     *   state created through
     *   \Drupal\Core\Form\SubformState::createForSubform().
     */
    public function submitConfigurationForm(array &$form, FormStateInterface $form_state);

}

Interfaces

Title Deprecated Summary
PluginFormInterface Provides an interface for an embeddable plugin form.

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.