Wysiwyg field in cf7

define( 'WYSIWYG_META_BOX_ID', 'wpcf7ev_popup_options' );
define( 'WYSIWYG_EDITOR_ID', 'myeditor' ); //Important for CSS that this is different
define( 'WYSIWYG_META_KEY', 'extra-content-form' );

add_action( 'wpcf7_add_meta_boxes', 'wysiwyg_register_meta_box' );

function wysiwyg_register_meta_box() {
    add_meta_box( WYSIWYG_META_BOX_ID, __( 'Popup text', 'wysiwyg' ), 'wysiwyg_render_meta_box', null, 'additional_settings', 'core' );
}

function wysiwyg_render_meta_box() {

    $post = wpcf7_get_current_contact_form();

    $meta_box_id = WYSIWYG_META_BOX_ID;
    $editor_id   = WYSIWYG_EDITOR_ID;

    //Add CSS & jQuery goodness to make this work like the original WYSIWYG
    echo "
                <style type='text/css'>
                        #$meta_box_id #edButtonHTML, #$meta_box_id #edButtonPreview {background-color: #F1F1F1; border-color: #DFDFDF #DFDFDF #CCC; color: #999;}
                        #$editor_id{width:100%;}
                        #$meta_box_id #editorcontainer{background:#fff !important;}
                        #$meta_box_id #$editor_id_fullscreen{display:none;}
                </style>

                <script type='text/javascript'>
                        jQuery(function($){
                                $('#$meta_box_id #editor-toolbar > a').click(function(){
                                        $('#$meta_box_id #editor-toolbar > a').removeClass('active');
                                        $(this).addClass('active');
                                });

                                if($('#$meta_box_id #edButtonPreview').hasClass('active')){
                                        $('#$meta_box_id #ed_toolbar').hide();
                                }

                                $('#$meta_box_id #edButtonPreview').click(function(){
                                        $('#$meta_box_id #ed_toolbar').hide();
                                });

                                $('#$meta_box_id #edButtonHTML').click(function(){
                                        $('#$meta_box_id #ed_toolbar').show();
                                });

                //Tell the uploader to insert content into the correct WYSIWYG editor
                $('#media-buttons a').bind('click', function(){
                    var customEditor = $(this).parents('#$meta_box_id');
                    if(customEditor.length > 0){
                        edCanvas = document.getElementById('$editor_id');
                    }
                    else{
                        edCanvas = document.getElementById('content');
                    }
                });
                        });
                </script>
        ";
    //Create The Editor
    $content = get_post_meta( $post->id, WYSIWYG_META_KEY, true );
    wp_editor( $content, $editor_id );

    //Clear The Room!
    echo "<div style='clear:both; display:block;'></div>";
}

add_action( 'wpcf7_save_contact_form', 'wysiwyg_save_meta' );

function wysiwyg_save_meta( $post ) {

    $editor_id   = WYSIWYG_EDITOR_ID;
    $meta_key    = WYSIWYG_META_KEY;
    if ( isset( $_REQUEST[ $editor_id ] ) ) {
        update_post_meta( $post->id, $meta_key, $_REQUEST[ $editor_id ] );
    }
}