h5p_math.module

<?php


function h5p_math_form_alter(&$form, &$form_state, $form_id) {
  if ($form_id == 'h5p_content_node_form') {
    $form['#after_build'][] = 'h5p_math_node_form_process';
  }
}

// Add mathjax support
function h5p_math_node_form_process($form, &$form_state) {
  $module_path = drupal_get_path('module', 'h5p_math');
  drupal_add_js(array(
    'h5peditor' => array(
      'ckeditorPluginPath' => base_path() . $module_path . '/ckeditor',
      'assets' => array(
        'js' => array(
          base_path() . $module_path . '/js/h5p-math.js',
          base_path() . $module_path . '/js/h5peditor-html-addon.js',
        )
      )
    )
  ), 'setting');

  return $form;
}

function h5p_math_h5p_scripts_alter(&$scripts, $libraries, $mode) {
  if ($mode == 'div' || $mode == 'iframe') {
    $scripts[] = (object) array(
      'path' => 'http://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS_HTML'
    );
  }
}

function h5p_math_h5p_semantics_alter(&$semantics) {
  foreach ($semantics as $field) {
    // Lists specify the field inside the list.
    while ($field->type == 'list') {
      $field = $field->field;
    }

    if ($field->type == 'group') {
      // Recurse for group.
      h5p_math_h5p_semantics_alter($field->fields);
    }
    else if ($field->type == 'text' && isset($field->widget) && $field->widget == 'html') {
      // Add MathML tags
      if (!isset($field->tags)) {
        $field->tags = array();
      }
      $field->tags = array_merge($field->tags, array(
        'math'
      ));
    }
  }
}