social_editor.module in Open Social 8

The Social editor module.

File

modules/social_features/social_editor/social_editor.module

<?php

/**
 * @file
 * The Social editor module.
 */
use Drupal\Core\Form\FormStateInterface;

/**
 * Implements hook_element_info_alter().
 */
function social_editor_element_info_alter(array &$types) {

  // Our process callback must run directly after TextFormat::processFormat().
  if (isset($types['text_format']) && isset($types['text_format']['#process'])) {
    $search_value = [
      'Drupal\\filter\\Element\\TextFormat',
      'processFormat',
    ];
    $key = array_search($search_value, $types['text_format']['#process']);
    if ($key !== FALSE) {
      $key++;
      array_splice($types['text_format']['#process'], $key, 0, 'social_editor_filter_process_format');
    }
    else {
      $types['text_format']['#process'][] = 'social_editor_filter_process_format';
    }
  }
}

/**
 * Process callback for form elements that have a text format selector attached.
 *
 * This callback runs after filter_process_format() and performs additional
 * modifications to the form element.
 *
 * @see \Drupal\filter\Element\TextFormat::processFormat()
 */
function social_editor_filter_process_format(array &$element, FormStateInterface $form_state, array $complete_form) {

  // Init.
  $disable_fields = FALSE;

  // Forms.
  $forms = [
    "social_post_entity_form",
    "comment_post_comment_form",
    "comment_comment_form",
  ];

  // Allowed formats.
  $allowed_format = 'simple_text';

  // Check if it needs to be done here.
  if (in_array($complete_form['#form_id'], $forms)) {

    // Remove user formats except simple_text.
    foreach ($element['format']['format']['#options'] as $key => $value) {
      if ($key !== $allowed_format) {
        unset($element['format']['format']['#options'][$key]);
      }
    }

    // No changes can be made in text formats, so remove the fields.
    $disable_fields = TRUE;
  }
  else {

    // Remove simple_text.
    foreach ($element['format']['format']['#options'] as $key => $value) {
      if ($key === $allowed_format) {
        unset($element['format']['format']['#options'][$key]);
      }
    }
  }

  // No changes can be made in text formats, so deny access to the fields.
  if ($disable_fields == TRUE || count($element['format']['format']['#options']) == 1) {

    // Deny access to format fields.
    $element['format']['format']['#access'] = FALSE;
    $element['format']['guidelines']['#access'] = FALSE;
    $element['format']['help']['#access'] = FALSE;
  }
  return $element;
}

Functions

Name	Description
social_editor_element_info_alter	Implements hook_element_info_alter().
social_editor_filter_process_format	Process callback for form elements that have a text format selector attached.