lib_editor.php

<?php
/*
 * Copyright (c) 2006-2012 Oliver Seidel (email : oliver.seidel @ deliciousdays.com)
 * Copyright (c) 2014      Bastian Germann
 *
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

### used to insert button in editor
function cforms2_mce_button($buttons) {
    array_push($buttons, "separator", "cforms");
    return $buttons;
}

### adding to TinyMCE
function cforms2_mce($plugins) {
	$plugins['cforms'] = plugin_dir_url( __FILE__ ).'js/cforms.tinymce.js';
	return $plugins;
}

function cforms2_mce_translation($mce_translation) {
	$mce_translation['Insert a form'] = __('Insert a form', 'cforms');
    return $mce_translation;
}

function cforms2_mce_script() {
	$cformsSettings = get_option('cforms_settings');
    $fns = array();
    $forms = $cformsSettings['global']['cforms_formcount'];
    for ($i=0;$i<$forms;$i++) {
        $no = ($i==0)?'':($i+1);
        $fns[] = $cformsSettings['form'.$no]['cforms'.$no.'_fname'];
    }
	echo '<script type="text/javascript">cforms2_formnames = ' . json_encode($fns) . ';</script>';
}

### only insert buttons if enabled!
if($cformsSettings['global']['cforms_show_quicktag'] == true) {

	add_filter('mce_external_plugins', 'cforms2_mce');
	add_filter('wp_mce_translation'  , 'cforms2_mce_translation');
	add_filter('mce_buttons'         , 'cforms2_mce_button');
	add_action('admin_print_scripts' , 'cforms2_mce_script' );

}