<?php

/**
 * @file
 * Primarily Drupal hooks.
 */

/**
 * Implements hook_element_info_alter().
 */
function media_ckeditor_element_info_alter(&$types) {
  $types['text_format']['#pre_render'][] = 'media_ckeditor_pre_render_text_format';
}

/**
 * Adds CKEditor-specific JavaScript.
 */
function media_ckeditor_pre_render_text_format($element) {
  // filter_process_format() copies properties to the expanded 'value' child
  // element.
  if (!isset($element['format'])) {
    return $element;
  }

  $field = &$element['value'];
  $settings = array(
    'field' => $field['#id'],
  );

  if (!isset($field['#value'])) {
    return $element;
  }

  // Add CKEditor-specific JS.
  $element['#attached']['js'][] = array(
    'data' => drupal_get_path('module', 'media_ckeditor') . '/js/plugins/media/library.js',
    'type' => 'file',
    'scope' => 'footer',
    'weight' => -20,
  );

  return $element;
}