CKEDITOR.editorConfig = function(config) {
   CKEDITOR.tools.extend(config,
      {
         toolbar: 'editor',
         'entities_additional': '',
         'autoGrow_maxHeight': 500,
         'autoGrow_onStartup': false,
         'autoGrow_minHeight': 150,
         'autoGrow_bottomSpace': 10,
         'entities': false,
         'language': 'cs',
         'startupOutlineBlocks': true,
         'extraPlugins': 'mediaembed,',
         'allowedContent': {
            $1: {
               // https://ckeditor.com/docs/ckeditor4/latest/guide/dev_disallowed_content.html#how-to-allow-everything-except
               elements: CKEDITOR.dtd,
               attributes: true,
               styles: true,
               classes: true,
            },
         },
         'disallowedContent': 'script; style; b; font; input;',
         'basicEntities': false,
         'height': 150,
         'entities_processNumerical': false,
         'entities_greek': false,
         'toolbarCanCollapse': true,
         'entities_latin': false,
         templates_files: ['launch.php?s=products.templates.php'],
         templates_replaceContent: false,
         disableNativeSpellChecker: false,
         browserContextMenuOnCtrl: true,
         contentsCss: [CKEDITOR.getUrl('contents.css'), 'static/css/ckeditor.css'],
         format_tags: 'p;h1;h2;h3;h4;h5;div',
         toolbar_editor: [
            ['Copy', 'Paste', 'PasteText', 'PasteFromWord'],
            ['MediaEmbed'],
            ['Undo', 'Redo', '-', 'Find', '-', 'SelectAll', 'RemoveFormat'],
            ['Format', 'FontSize'],
            ['TextColor', 'BGColor'], '/', ['Bold', 'Italic', 'Underline', 'Strike', '-', 'Subscript', 'Superscript'],
            ['NumberedList', 'BulletedList', '-', 'Outdent', 'Indent', 'Blockquote'],
            ['JustifyLeft', 'JustifyCenter', 'JustifyRight', 'JustifyBlock'],
            ['Link', 'Unlink', 'Anchor'],
            ['Image', 'Table', 'SpecialChar'],
            ['HorizontalRule'],
            ['Maximize', 'ShowBlocks', 'Source'],
         ],
         toolbar_BasicHTML: [
            ['Undo', 'Redo'],
            ['Format', 'TextColor'],
            ['PasteText', 'PasteFromWord'],
            ['JustifyLeft', 'JustifyCenter', 'JustifyRight', 'JustifyBlock'],
            //'/',
            [
               'Bold',
               'Italic',
               'Underline',
               '-',
               'NumberedList',
               'BulletedList',
               '-',
               'Link',
               'Image',
               'Table',
               '-',
               'RemoveFormat',
               'Templates',
               'Source',
               'ShowBlocks'],
         ],
         // default:
         toolbar_BasicTable: [
            [
               'Undo',
               'Redo',
               '-',
               'PasteFromWord',
               '-',
               'Bold',
               'Italic',
               '-',
               'NumberedList',
               'BulletedList',
               '-',
               '-',
               'JustifyLeft',
               'JustifyCenter',
               'JustifyRight',
               'JustifyBlock',
               '-',
               'TextColor',
               'RemoveFormat',
               '-',
               'Link',
               'Unlink',
               'Image',
               '-',
               'Table',
               '-',
               'Format',
               '-',
               'Templates',
               'MediaEmbed',
               'Source',
               'ShowBlocks'],
         ],
         toolbar_ProductDescription: [
            [
               'Undo',
               'Redo',
               '-',
               'PasteFromWord',
               '-',
               'JustifyLeft',
               'JustifyCenter',
               'JustifyRight',
               'JustifyBlock',
               '-',
               'Bold',
               'Italic',
               '-',
               'NumberedList',
               'BulletedList',
               '-',
               'RemoveFormat',
               '-',
               'Link',
               'Unlink',
               'Image',
               '-',
               'Table',
               '-',
               'Format',
               '-',
               'Source',
               '-',
               'Templates',
               'MediaEmbed',
               'ShowBlocks'],
         ],
         toolbar_BasicTextAndImage: [
            [
               'Undo',
               'Redo',
               '-',
               'PasteFromWord',
               '-',
               'JustifyLeft',
               'JustifyCenter',
               'JustifyRight',
               'Bold',
               'Italic',
               'Underline',
               'FontSize',
               'Font',
               'Image'],
         ],
         toolbar_email: [
            [
               'Undo',
               'Redo',
               '-',
               'Bold',
               'Italic',
               '-',
               'NumberedList',
               'BulletedList',
               '-',
               'JustifyLeft',
               'JustifyCenter',
               'JustifyRight',
               '-',
               'RemoveFormat',
               '-',
               'Link',
               'Unlink',
               'Image',
               '-',
               'Table',
               '-',
               'Format',
               '-',
               'Source',
               'ShowBlocks',
            ],
         ],
      }, true);
};