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<?php
/**
** A base module for [quiz]
**/
/* Shortcode handler */
add_action( 'wpcf7_init', 'wpcf7_add_shortcode_quiz' );
function wpcf7_add_shortcode_quiz() {
wpcf7_add_shortcode( 'quiz', 'wpcf7_quiz_shortcode_handler', true );
}
function wpcf7_quiz_shortcode_handler( $tag ) {
$tag = new WPCF7_Shortcode( $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['class'] = $tag->get_class_option( $class );
$atts['id'] = $tag->get_id_option();
$atts['tabindex'] = $tag->get_option( 'tabindex', 'int', true );
$atts['aria-required'] = 'true';
$atts['aria-invalid'] = $validation_error ? 'true' : 'false';
$pipes = $tag->pipes;
if ( is_a( $pipes, '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 );
$html = sprintf(
'<span class="wpcf7-form-control-wrap %1$s"><span class="wpcf7-quiz-label">%2$s</span> <input %3$s /><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 ) {
$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['valid'] = false;
$result['reason'][$name] = wpcf7_get_message( 'quiz_answer_not_correct' );
}
if ( isset( $result['reason'][$name] ) && $id = $tag->get_id_option() ) {
$result['idref'][$name] = $id;
}
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 ( is_a( $pipes, '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' => __( 'Your answer is not correct.', 'contact-form-7' )
) ) );
}
/* Tag generator */
add_action( 'admin_init', 'wpcf7_add_tag_generator_quiz', 40 );
function wpcf7_add_tag_generator_quiz() {
if ( ! function_exists( 'wpcf7_add_tag_generator' ) )
return;
wpcf7_add_tag_generator( 'quiz', __( 'Quiz', 'contact-form-7' ),
'wpcf7-tg-pane-quiz', 'wpcf7_tg_pane_quiz' );
}
function wpcf7_tg_pane_quiz( $contact_form ) {
?>
<div id="wpcf7-tg-pane-quiz" class="hidden">
<form action="">
<table>
<tr><td><?php echo esc_html( __( 'Name', 'contact-form-7' ) ); ?><br /><input type="text" name="name" class="tg-name oneline" /></td><td></td></tr>
</table>
<table>
<tr>
<td><code>id</code> (<?php echo esc_html( __( 'optional', 'contact-form-7' ) ); ?>)<br />
<input type="text" name="id" class="idvalue oneline option" /></td>
<td><code>class</code> (<?php echo esc_html( __( 'optional', 'contact-form-7' ) ); ?>)<br />
<input type="text" name="class" class="classvalue oneline option" /></td>
</tr>
<tr>
<td><code>size</code> (<?php echo esc_html( __( 'optional', 'contact-form-7' ) ); ?>)<br />
<input type="number" name="size" class="numeric oneline option" min="1" /></td>
<td><code>maxlength</code> (<?php echo esc_html( __( 'optional', 'contact-form-7' ) ); ?>)<br />
<input type="number" name="maxlength" class="numeric oneline option" min="1" /></td>
</tr>
<tr>
<td><?php echo esc_html( __( 'Quizzes', 'contact-form-7' ) ); ?><br />
<textarea name="values"></textarea><br />
<span style="font-size: smaller"><?php echo esc_html( __( "* quiz|answer (e.g. 1+1=?|2)", 'contact-form-7' ) ); ?></span>
</td>
</tr>
</table>
<div class="tg-tag"><?php echo esc_html( __( "Copy this code and paste it into the form left.", 'contact-form-7' ) ); ?><br /><input type="text" name="quiz" class="tag wp-ui-text-highlight code" readonly="readonly" onfocus="this.select()" /></div>
</form>
</div>
<?php
}
?>
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