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<?php
/**
** A base module for [quiz]
**/
/* form_tag handler */
add_action( 'wpcf7_init', 'wpcf7_add_form_tag_quiz', 10, 0 );
function wpcf7_add_form_tag_quiz() {
wpcf7_add_form_tag( 'quiz',
'wpcf7_quiz_form_tag_handler',
array(
'name-attr' => true,
'do-not-store' => true,
'not-for-mail' => true,
)
);
}
function wpcf7_quiz_form_tag_handler( $tag ) {
if ( empty( $tag->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'] and $atts['minlength']
and $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', 'signed_int', true );
$atts['autocomplete'] = 'off';
$atts['aria-required'] = 'true';
$atts['aria-invalid'] = $validation_error ? 'true' : 'false';
$pipes = $tag->pipes;
if ( $pipes instanceof WPCF7_Pipes
and ! $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 );
$html = sprintf(
'<span class="wpcf7-form-control-wrap %1$s"><label><span class="wpcf7-quiz-label">%2$s</span> <input %3$s /></label><input type="hidden" name="_wpcf7_quiz_answer_%4$s" value="%5$s" />%6$s</span>',
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 ) {
$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', 10, 1 );
add_filter( 'wpcf7_ajax_json_echo', 'wpcf7_quiz_ajax_refill', 10, 1 );
function wpcf7_quiz_ajax_refill( $items ) {
if ( ! is_array( $items ) ) {
return $items;
}
$fes = wpcf7_scan_form_tags( 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
and ! $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', 10, 1 );
function wpcf7_quiz_messages( $messages ) {
$messages = 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' ),
),
) );
return $messages;
}
/* Tag generator */
add_action( 'wpcf7_admin_init', 'wpcf7_add_tag_generator_quiz', 40, 0 );
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( __( 'https://contactform7.com/quiz/', 'contact-form-7' ), __( 'Quiz', 'contact-form-7' ) );
?>
<div class="control-box">
<fieldset>
<legend><?php echo sprintf( esc_html( $description ), $desc_link ); ?></legend>
<table class="form-table">
<tbody>
<tr>
<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-name' ); ?>"><?php echo esc_html( __( 'Name', 'contact-form-7' ) ); ?></label></th>
<td><input type="text" name="name" class="tg-name oneline" id="<?php echo esc_attr( $args['content'] . '-name' ); ?>" /></td>
</tr>
<tr>
<th scope="row"><?php echo esc_html( __( 'Questions and answers', 'contact-form-7' ) ); ?></th>
<td>
<fieldset>
<legend class="screen-reader-text"><?php echo esc_html( __( 'Questions and answers', 'contact-form-7' ) ); ?></legend>
<textarea name="values" class="values" id="<?php echo esc_attr( $args['content'] . '-values' ); ?>"></textarea><br />
<label for="<?php echo esc_attr( $args['content'] . '-values' ); ?>"><span class="description"><?php echo esc_html( __( "One pipe-separated question-answer pair (e.g. The capital of Brazil?|Rio) per line.", 'contact-form-7' ) ); ?></span></label>
</fieldset>
</td>
</tr>
<tr>
<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-id' ); ?>"><?php echo esc_html( __( 'Id attribute', 'contact-form-7' ) ); ?></label></th>
<td><input type="text" name="id" class="idvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-id' ); ?>" /></td>
</tr>
<tr>
<th scope="row"><label for="<?php echo esc_attr( $args['content'] . '-class' ); ?>"><?php echo esc_html( __( 'Class attribute', 'contact-form-7' ) ); ?></label></th>
<td><input type="text" name="class" class="classvalue oneline option" id="<?php echo esc_attr( $args['content'] . '-class' ); ?>" /></td>
</tr>
</tbody>
</table>
</fieldset>
</div>
<div class="insert-box">
<input type="text" name="<?php echo $type; ?>" class="tag code" readonly="readonly" onfocus="this.select()" />
<div class="submitbox">
<input type="button" class="button button-primary insert-tag" value="<?php echo esc_attr( __( 'Insert Tag', 'contact-form-7' ) ); ?>" />
</div>
</div>
<?php
}
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