geshifilter.module in GeSHi Filter for syntax highlighting 8

An input filter for syntax highlighting using the GeSHi library.

File

geshifilter.module

<?php

/**
 * @file
 * An input filter for syntax highlighting using the GeSHi library.
 */

// Necessary for URL.
use Drupal\geshifilter\GeshiFilterCss;
use Drupal\geshifilter\GeshiFilter;
use Drupal\Core\Url;
use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function geshifilter_help($route_name, RouteMatchInterface $route_match) {
  $config = \Drupal::config('geshifilter.settings');
  switch ($route_name) {
    case 'geshifilter.settings':
    case 'help.page.geshifilter':
      $output = '<p>' . t('The GeSHi filter module provides a filter for syntax
        highlighting of inline source code or blocks of source code based on the
        PHP library <a href=":GeSHi">GeSHi (Generic Syntax Highlighter)</a>.</p>', [
        ':GeSHi' => URL::fromUri('http://qbnz.com/highlighter/')
          ->toString(),
      ]);
      if ($route_name == 'help.page.geshifilter') {
        $output .= '<p>' . t('The GeSHi filter module for Drupal requires the
          GeSHi library (version 1.0.x) to work. The GeSHi filter is actually
          just a Drupal wrapper module around the GeSHi library. Because of
          <a href=":!repositorypolicies">drupal.org repository policies</a>
          however, the GeSHi library is not included in the GeSHi filter
          package, so you should <a href=":geshi">download</a> and install the
          GeSHi library separately.', [
          ':repositorypolicies' => URL::fromUri('http://drupal.org/node/66113')
            ->toString(),
          ':geshi' => URL::fromUri('http://qbnz.com/highlighter/')
            ->toString(),
        ]) . '</p>';
        $output .= t('<p>Quick overview of how to set up and use the GeSHi filter:</p><ul><li>Install the GeSHi library and specify its path on the <a href=":geshifilter_settings">GeSHi filter administration page</a>.</li><li>Configure the <a href=":geshifilter_settings">general GeSHi filter settings</a>.</li><li><a href=":geshifilter_languages">Enable the relevant languages</a> for your site and set their language tags if needed.</li><li>Enable the GeSHi filter in the desired <a href=":inputformats">text formats</a>.</li><li>Use the text format during content submission as described in the <a href=":filtertips">filter tips</a>.</li></ul>', [
          ':geshifilter_settings' => URL::fromRoute('geshifilter.settings')
            ->toString(),
          ':geshifilter_languages' => URL::fromRoute('geshifilter.settings_languages_all')
            ->toString(),
          ':inputformats' => URL::fromRoute('filter.admin_overview')
            ->toString(),
          ':filtertips' => URL::fromRoute('filter.tips_all')
            ->toString(),
        ]);
      }
      return $output;
    case 'geshifilter.settings_languages':
    case 'geshifilter.settings_languages_all':
    case 'geshifilter.settings_languages_disabled':
      $output = '<p>' . t('Here you can enable/disable the desired languages to
        use. It is suggested to disable languages that are not relevant for you
        site not only to avoid unnecessary cluttering of the GeSHi filter
        configuration pages and the <a href=":filtertips">filter tips</a>, but also to make the GeSHi
        filter processing lighter.', [
        ':filtertips' => URL::fromRoute('filter.tips_all')
          ->toString(),
      ]) . '</p>';
      if (!$config
        ->get('use_format_specific_options', FALSE)) {
        $output .= '<p>' . t('You can also define the language specific tags here.') . '</p>';
      }
      return $output;
  }
}

/**
 * Implements hook_libraries_info().
 */
function geshifilter_libraries_info() {
  return [
    'geshi' => [
      'title' => 'GeSHi - Generic Syntax Highlighter for PHP',
      'vendor url' => 'http://sourceforge.net/projects/geshi',
      'download url' => 'http://sourceforge.net/projects/geshi/files/geshi',
      'version arguments' => [
        'file' => 'geshi.php',
        'pattern' => "/define\\('GESHI_VERSION', '(.*)'\\);/",
        'lines' => 50,
      ],
      'files' => [
        'php' => [
          'geshi.php',
        ],
      ],
    ],
  ];
}

/**
 * Implements hook_library_info_alter().
 */
function geshifilter_library_info_alter(&$libraries, $extension) {
  if ($extension == 'geshifilter') {
    $config = \Drupal::config('geshifilter.settings');

    // Add the language CSS file if CSS classes are used for code styling.
    if ($config
      ->get('css_mode') == GeshiFilter::CSS_CLASSES_AUTOMATIC) {
      $name = file_create_url(GeshiFilterCss::languageCssPath());
      $libraries['geshifilter']['css']['component'][$name] = [];
    }
  }
}

Functions

Name	Description
geshifilter_help	Implements hook_help().
geshifilter_libraries_info	Implements hook_libraries_info().
geshifilter_library_info_alter	Implements hook_library_info_alter().