name ) ) {
return '';
}
$validation_error = wpcf7_get_validation_error( $tag->name );
$class = wpcf7_form_controls_class( $tag->type );
if ( $validation_error ) {
$class .= ' wpcf7-not-valid';
}
$atts = array();
$atts['size'] = $tag->get_size_option( '40' );
$atts['maxlength'] = $tag->get_maxlength_option();
$atts['minlength'] = $tag->get_minlength_option();
if ( $atts['maxlength'] && $atts['minlength'] && $atts['maxlength'] < $atts['minlength'] ) {
unset( $atts['maxlength'], $atts['minlength'] );
}
$atts['class'] = $tag->get_class_option( $class );
$atts['id'] = $tag->get_id_option();
$atts['tabindex'] = $tag->get_option( 'tabindex', 'int', true );
$atts['autocomplete'] = 'off';
$atts['aria-required'] = 'true';
$atts['aria-invalid'] = $validation_error ? 'true' : 'false';
$pipes = $tag->pipes;
if ( $pipes instanceof WPCF7_Pipes && ! $pipes->zero() ) {
$pipe = $pipes->random_pipe();
$question = $pipe->before;
$answer = $pipe->after;
} else {
// default quiz
$question = '1+1=?';
$answer = '2';
}
$answer = wpcf7_canonicalize( $answer );
$atts['type'] = 'text';
$atts['name'] = $tag->name;
$atts = wpcf7_format_atts( $atts );
$html = sprintf(
'%6$s',
sanitize_html_class( $tag->name ),
esc_html( $question ), $atts, $tag->name,
wp_hash( $answer, 'wpcf7_quiz' ), $validation_error );
return $html;
}
/* Validation filter */
add_filter( 'wpcf7_validate_quiz', 'wpcf7_quiz_validation_filter', 10, 2 );
function wpcf7_quiz_validation_filter( $result, $tag ) {
$tag = new WPCF7_Shortcode( $tag );
$name = $tag->name;
$answer = isset( $_POST[$name] ) ? wpcf7_canonicalize( $_POST[$name] ) : '';
$answer = wp_unslash( $answer );
$answer_hash = wp_hash( $answer, 'wpcf7_quiz' );
$expected_hash = isset( $_POST['_wpcf7_quiz_answer_' . $name] )
? (string) $_POST['_wpcf7_quiz_answer_' . $name]
: '';
if ( $answer_hash != $expected_hash ) {
$result->invalidate( $tag, wpcf7_get_message( 'quiz_answer_not_correct' ) );
}
return $result;
}
/* Ajax echo filter */
add_filter( 'wpcf7_ajax_onload', 'wpcf7_quiz_ajax_refill' );
add_filter( 'wpcf7_ajax_json_echo', 'wpcf7_quiz_ajax_refill' );
function wpcf7_quiz_ajax_refill( $items ) {
if ( ! is_array( $items ) )
return $items;
$fes = wpcf7_scan_shortcode( array( 'type' => 'quiz' ) );
if ( empty( $fes ) )
return $items;
$refill = array();
foreach ( $fes as $fe ) {
$name = $fe['name'];
$pipes = $fe['pipes'];
if ( empty( $name ) )
continue;
if ( $pipes instanceof WPCF7_Pipes && ! $pipes->zero() ) {
$pipe = $pipes->random_pipe();
$question = $pipe->before;
$answer = $pipe->after;
} else {
// default quiz
$question = '1+1=?';
$answer = '2';
}
$answer = wpcf7_canonicalize( $answer );
$refill[$name] = array( $question, wp_hash( $answer, 'wpcf7_quiz' ) );
}
if ( ! empty( $refill ) )
$items['quiz'] = $refill;
return $items;
}
/* Messages */
add_filter( 'wpcf7_messages', 'wpcf7_quiz_messages' );
function wpcf7_quiz_messages( $messages ) {
return array_merge( $messages, array( 'quiz_answer_not_correct' => array(
'description' => __( "Sender doesn't enter the correct answer to the quiz", 'contact-form-7' ),
'default' => __( "The answer to the quiz is incorrect.", 'contact-form-7' )
) ) );
}
/* Tag generator */
add_action( 'wpcf7_admin_init', 'wpcf7_add_tag_generator_quiz', 40 );
function wpcf7_add_tag_generator_quiz() {
$tag_generator = WPCF7_TagGenerator::get_instance();
$tag_generator->add( 'quiz', __( 'quiz', 'contact-form-7' ),
'wpcf7_tag_generator_quiz' );
}
function wpcf7_tag_generator_quiz( $contact_form, $args = '' ) {
$args = wp_parse_args( $args, array() );
$type = 'quiz';
$description = __( "Generate a form-tag for a question-answer pair. For more details, see %s.", 'contact-form-7' );
$desc_link = wpcf7_link( __( 'http://contactform7.com/quiz/', 'contact-form-7' ), __( 'Quiz', 'contact-form-7' ) );
?>