tinymce_codehighlight.module

<?php
/**
 * @file
 * Callbacks and hook implementations for the TinyMCE Code Highlight module.
 */

/**
 * Implements hook_library_info().
 */
function tinymce_codehighlight_library_info() {
  $module_path = backdrop_get_path('module', 'tinymce_codehighlight');
  $path = $module_path . '/libraries/prismjs';
  $js_options = array(
    'type' => 'file',
    'weight' => -1,// Make sure this loads before TinyMCE.
  );
  $libraries['Prism.js_local'] = array(
    'title' => 'Prism.js (local)',
    'website' => 'https://prismjs.com/',
    'version' => '1.30.0',
    'js' => array(
      $path . '/components/prism-core.min.js' => $js_options,
      $path . '/plugins/autoloader/prism-autoloader.min.js' => $js_options,
      $module_path . '/js/tinymce-codehighlight.js' => $js_options,
    ),
    'css' => array(
      $module_path . '/css/tinymce-codehighlight-common.css' => array(),
    ),
  );
  // @see js/tinymce-codehighlight.js
  $languages_path = base_path() . $module_path . '/libraries/prismjs/components/';
  $libraries['Prism.js_local']['js'][] = array(
    'type' => 'setting',
    'data' => array('prismjsAutoloaderLangPath' => $languages_path),
  );

  // Optional copy to clipboard button.
  if (config_get('tinymce_codehighlight.settings', 'copybutton')) {
    $libraries['Prism.js_local']['js'][$path . '/plugins/toolbar/prism-toolbar.min.js'] = $js_options;
    $libraries['Prism.js_local']['js'][$path . '/plugins/copy-to-clipboard/prism-copy-to-clipboard.min.js'] = $js_options;
  }

  $theme = _tinymce_codehighlight_get_active_theme();
  $stylesheet = $theme['stylesheet_path'];
  $libraries['Prism.js_local']['css'][$stylesheet] = array('type' => 'file');

  return $libraries;
}

/**
 * Callback to get the active theme.
 *
 * @return array
 */
function _tinymce_codehighlight_get_active_theme() {
  $themes = _tinymce_codehighlight_get_all_themes();
  $active_theme = config_get('tinymce_codehighlight.settings', 'theme');

  if ($active_theme && array_key_exists($active_theme, $themes)) {
    return $themes[$active_theme];
  }
  // Fallback if not found.
  return $themes['default'];
}

/**
 * Callback to collect theme info.
 *
 * @return array
 */
function _tinymce_codehighlight_get_all_themes() {
  $themes = &backdrop_static(__FUNCTION__, NULL);

  if (!isset($themes)) {
    $themes = module_invoke_all('tinymce_codehighlight_theme_info');
  }
  return $themes;
}

/**
 * Implements hook_tinymce_codehighlight_theme_info().
 */
function tinymce_codehighlight_tinymce_codehighlight_theme_info() {
  // Some custom default themes, as none of the Prism.js themes is fully
  // compatible with Backdrop, they usually conflict with theme's styles, and
  // don't play nicely with the markup inside CKEditor5 (half styled is worse
  // than not styled at all).
  $path = backdrop_get_path('module', 'tinymce_codehighlight');
  $themes = array();
  $themes['default'] = array(
    'name' => 'default',
    'label' => t('Default'),
    'stylesheet_path' => $path . '/themes/default/prismjs-styles.css',
    'screenshot_path' => $path . '/themes/default/screenshot-default.png',
  );
  $themes['dark'] = array(
    'name' => 'dark',
    'label' => t('Dark'),
    'stylesheet_path' => $path . '/themes/dark/prismjs-styles.css',
    'screenshot_path' => $path . '/themes/dark/screenshot-dark.png',
  );
  $themes['striped'] = array(
    'name' => 'striped',
    'label' => t('Striped'),
    'stylesheet_path' => $path . '/themes/striped/prismjs-styles.css',
    'screenshot_path' => $path . '/themes/striped/screenshot-striped.png',
  );

  return $themes;
}

/**
 * Implements hook_menu().
 */
function tinymce_codehighlight_menu() {
  $items['admin/config/content/tinymce-codehighlight'] = array(
    'title' => 'TinyMCE Code Highlight',
    'page callback' => 'backdrop_get_form',
    'page arguments' => array('tinymce_codehighlight_settings_form'),
    'access arguments' => array('administer filters'),
    'file' => 'tinymce_codehighlight.admin.inc',
  );
  return $items;
}

/**
 * Implements hook_preprocess_HOOK().
 */
function tinymce_codehighlight_preprocess_page(&$variables) {
  if (!backdrop_is_html()) {
    return;
  }
  backdrop_add_library('tinymce_codehighlight', 'Prism.js_local');

  if (config_get('tinymce_codehighlight.settings', 'copybutton')) {
    backdrop_add_icons(array(
      'copy',
      'check',
    ));
  }
}

/**
 * Implements hook_tinymce_options_alter().
 */
function tinymce_codehighlight_tinymce_options_alter(array &$options, $format) {
  $options['tiny_options']['codesample_global_prismjs'] = TRUE;

  $theme = _tinymce_codehighlight_get_active_theme();
  $stylesheet = $theme['stylesheet_path'];

  $options['tiny_options']['content_css'][] = base_path() . backdrop_get_path('module', 'tinymce_codehighlight') . '/css/tinymce-codehighlight-common.css';
  $options['tiny_options']['content_css'][] = base_path() . $stylesheet;

  $enabled = config_get('tinymce_codehighlight.settings', 'enabled_with_labels');
  $tiny_options = array();
  foreach ($enabled as $name => $label) {
    $tiny_options[] = array(
      'text' => $label,
      'value' => $name,
    );
  }
  $options['tiny_options']['codesample_languages'] = $tiny_options;
}

/**
 * Implements hook_config_info().
 */
function tinymce_codehighlight_config_info() {
  $prefixes['tinymce_codehighlight.settings'] = array(
    'label' => t('TinyMCE Code Highlight settings'),
    'group' => t('Configuration'),
  );
  return $prefixes;
}