ckeditor_indent.module

<?php

/**
 * @file
 * Registering CKEditor plugin.
 */

/**
 * Implements hook_ckeditor_plugins().
 */
function ckeditor_indent_ckeditor_plugins() {
  $path = backdrop_get_path('module', 'ckeditor_indent') . '/plugins';
  $plugins['indent'] = array(
    'file' => 'plugin.js',
    'path' => $path . '/indent',
    'css' => array(backdrop_get_path('module', 'ckeditor_indent') . '/css/ckeditor-indent.css'),
    'enabled callback' => 'ckeditor_indent_plugin_check',
    'buttons' => array(
      'Indent' => array(
        'label' => 'Indent',
        'image' => $path . '/indent/icons/indent.png',
      ),
      'Outdent' => array(
        'label' => 'Outdent',
        'image' => $path . '/indent/icons/outdent.png',
      ),
    ),
  );
  $plugins['indentblock'] = array(
    'file' => 'plugin.js',
    'path' => $path . '/indentblock',
    'enabled callback' => 'ckeditor_indent_plugin_check',
  );
  $plugins['indentlist'] = array(
    'file' => 'plugin.js',
    'path' => $path . '/indentlist',
    'enabled callback' => 'ckeditor_indent_plugin_check',
  );
  return $plugins;
}

function ckeditor_indent_plugin_check($format, $plugin_name) {
  return TRUE;
}
function ckeditor_indent_ckeditor_settings_alter(&$settings, $format) {
  $settings['indentClasses'] = array('indent1', 'indent2', 'indent3', 'indent4', 'indent5', 'indent6', 'indent7', 'indent8', 'indent9', 'indent10');
  $settings['indentOffset'] = 20;
  $settings['indentUnit'] = 'px';
}