Ticket #27159: wp-test-tinymce-toolbars.php

<?php
/*
Plugin Name: Test TinyMCE Toolbars
Plugin URI: https://wordpress.org
Description: Small plugin for testing different configurations for the TinyMCE toolbars.
Version: 1.0
Author: Andrew Ozz
Author URI: http://www.laptoptips.ca/
License: GPL2
License URI: https://www.gnu.org/licenses/gpl-2.0.html

        Test TinyMCE Toolbars is free software: you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
        the Free Software Foundation, either version 2 of the License, or
        any later version.

        Test TinyMCE Toolbars is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
        GNU General Public License for more details.

        You should have received a copy of the GNU General Public License along
        with WordPress. If not, see https://www.gnu.org/licenses/gpl-2.0.html.

        Copyright (c) Andrew Ozz. All rights reserved.
*/

if ( ! class_exists( 'WP_Test_Tinymce_Toolbars' ) ) :
class WP_Test_Tinymce_Toolbars {
        /**
         * Available TinyMCE buttons:
         * bold                         Applies the bold format to the current selection.
         * italic                       Applies the italic format to the current selection.
         * underline            Applies the underline format to the current selection.
         * strikethrough        Applies strike though format to the current selection.
         * alignleft            Left aligns the current block or image.
         * aligncenter          Left aligns the current block or image.
         * alignright           Right aligns the current block or image.
         * alignjustify         Full aligns the current block or image.
         * alignnone            Removes the alignment of the current block or image.
         * styleselect          Dropdown list with styles to apply to selection.
         * formatselect         Dropdown list with block formats to apply to selection.
         * fontselect           Dropdown list with font families to apply to selection.
         * fontsizeselect       Dropdown list with font sizes to apply to selection.
         * bullist                      Formats the current selection as a bullet list.
         * numlist                      Formats the current selection as a numbered list.
         * outdent                      Outdents the current list item or block element.
         * indent                       Indents the current list item or block element.
         * blockquote           Applies block quote format to the current block level element.
         * undo                         Undoes the last operation.
         * redo                         Redoes the last undoed operation.
         * removeformat         Removes the formatting from the current selection.
         * subscript            Applies subscript format to the current selection.
         * superscript          Applies superscript format to the current selection.
         * visualaid            Toggles the visual aids for invisible elements.
         * hr                           Inserts a horizontal rule into the editor.
         * link                         Creates/Edits links within the editor.
         * unlink                       Removes links from the current selection.
         * charmap                      Inserts custom characters into the editor.
         * pastetext            Toggles plain text pasting mode on/off.
         * ltr                          Sets the directionality of contents to ltr.
         * rtl                          Sets the directionality of contents to rtl.
         * forecolor            Applies foreground/text color to selection.
         * backcolor            Applies background color to selection.
         *
         * WordPress specific:
         * wp_more                      Inserts the <!-- more --> tag.
         * wp_help                      Opens the help.
         * wp_adv                       Toggles the second toolbar on/off.
         * dfw                          Distraction-free mode on/off.
         *
         */                                                                                                     

        // Add buttons (once) from the above list.                      
        private $toolbar_1 = array(
                'bold',
                'italic',
                'strikethrough',
                'link',
                'bullist',
                'numlist',
                'aligncenter',
                'blockquote',
                'hr',
                'wp_more',
                'formatselect',
                'wp_adv',
                'dfw', // Used only on the "Add/Edit Post" screens. Do not remove.
        );

        private $toolbar_2 = array(
                'undo',
                'redo',
                'removeformat',
                'unlink',
                'indent',
                'outdent',
                'alignleft',
                'alignright',
                'alignjustify',
                'underline',
                'forecolor',
                'pastetext',
                'charmap',
                'wp_help',
        );

        public function __construct() {
                if ( ! defined( 'ABSPATH' ) ) {
                        return;
                }

                add_filter( 'the_editor_content', array( $this, 'add_filters' ) );
        }

        public function add_filters( $content ) {
                if ( get_current_screen()->base === 'post' ) {
                        add_filter( 'mce_buttons', array( $this, 'mce_buttons_1' ) );
                        add_filter( 'mce_buttons_2', array( $this, 'mce_buttons_2' ) );
                        add_filter( 'tiny_mce_before_init', array( $this, 'mce_options' ) );
                }

                return $content;
        }

        public function mce_buttons_1( $buttons_array ) {
                return $this->toolbar_1;
        }

        public function mce_buttons_2( $buttons_array ) {
                return array_diff( $this->toolbar_2, $this->toolbar_1 );
        }

        public function mce_options( $init_array ) {
                
                $init_array['block_formats'] =
                        'Paragraph=p;' .
        //              'Heading 1=h1;' . // Disable H1
                        'Heading 2=h2;' .
                        'Heading 3=h3;' .
                        'Heading 4=h4;' .
                        'Heading 5=h5;' .
                        'Heading 6=h6;' .
                        'Preformatted=pre';

                return $init_array;
        }
}

new WP_Test_Tinymce_Toolbars;
endif;