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File Content: `checkbox.php`

<?php
/**
** A base module for [checkbox], [checkbox*], and [radio]
**/

/* form_tag handler */

add_action( 'wpcf7_init', 'wpcf7_add_form_tag_checkbox', 10, 0 );

function wpcf7_add_form_tag_checkbox() {
	wpcf7_add_form_tag( array( 'checkbox', 'checkbox*', 'radio' ),
		'wpcf7_checkbox_form_tag_handler',
		array(
			'name-attr' => true,
			'selectable-values' => true,
			'multiple-controls-container' => true,
		)
	);
}

function wpcf7_checkbox_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';
	}

	$label_first = $tag->has_option( 'label_first' );
	$use_label_element = $tag->has_option( 'use_label_element' );
	$exclusive = $tag->has_option( 'exclusive' );
	$free_text = $tag->has_option( 'free_text' );
	$multiple = false;

	if ( 'checkbox' === $tag->basetype ) {
		$multiple = ! $exclusive;
	} else { // radio
		$exclusive = false;
	}

	if ( $exclusive ) {
		$class .= ' wpcf7-exclusive-checkbox';
	}

	$atts = array();

	$atts['class'] = $tag->get_class_option( $class );
	$atts['id'] = $tag->get_id_option();

	if ( $validation_error ) {
		$atts['aria-describedby'] = wpcf7_get_validation_error_reference(
			$tag->name
		);
	}

	$tabindex = $tag->get_option( 'tabindex', 'signed_int', true );

	if ( false !== $tabindex ) {
		$tabindex = (int) $tabindex;
	}

	$html = '';
	$count = 0;

	if ( $data = (array) $tag->get_data_option() ) {
		if ( $free_text ) {
			$tag->values = array_merge(
				array_slice( $tag->values, 0, -1 ),
				array_values( $data ),
				array_slice( $tag->values, -1 )
			);

			$tag->labels = array_merge(
				array_slice( $tag->labels, 0, -1 ),
				array_values( $data ),
				array_slice( $tag->labels, -1 )
			);
		} else {
			$tag->values = array_merge( $tag->values, array_values( $data ) );
			$tag->labels = array_merge( $tag->labels, array_values( $data ) );
		}
	}

	$values = $tag->values;
	$labels = $tag->labels;

	$default_choice = $tag->get_default_option( null, array(
		'multiple' => $multiple,
	) );

	$hangover = wpcf7_get_hangover( $tag->name, $multiple ? array() : '' );

	foreach ( $values as $key => $value ) {
		if ( $hangover ) {
			$checked = in_array( $value, (array) $hangover, true );
		} else {
			$checked = in_array( $value, (array) $default_choice, true );
		}

		if ( isset( $labels[$key] ) ) {
			$label = $labels[$key];
		} else {
			$label = $value;
		}

		$item_atts = array(
			'type' => $tag->basetype,
			'name' => $tag->name . ( $multiple ? '[]' : '' ),
			'value' => $value,
			'checked' => $checked,
			'tabindex' => $tabindex,
		);

		$item_atts = wpcf7_format_atts( $item_atts );

		if ( $label_first ) { // put label first, input last
			$item = sprintf(
				'<span class="wpcf7-list-item-label">%1$s</span><input %2$s />',
				esc_html( $label ),
				$item_atts
			);
		} else {
			$item = sprintf(
				'<input %2$s /><span class="wpcf7-list-item-label">%1$s</span>',
				esc_html( $label ),
				$item_atts
			);
		}

		if ( $use_label_element ) {
			$item = '<label>' . $item . '</label>';
		}

		if ( false !== $tabindex and 0 < $tabindex ) {
			$tabindex += 1;
		}

		$class = 'wpcf7-list-item';
		$count += 1;

		if ( 1 === $count ) {
			$class .= ' first';
		}

		if ( count( $values ) === $count ) { // last round
			$class .= ' last';

			if ( $free_text ) {
				$free_text_name = sprintf( '_wpcf7_free_text_%s', $tag->name );

				$free_text_atts = array(
					'name' => $free_text_name,
					'class' => 'wpcf7-free-text',
					'tabindex' => $tabindex,
				);

				if ( wpcf7_is_posted()
				and isset( $_POST[$free_text_name] ) ) {
					$free_text_atts['value'] = wp_unslash( $_POST[$free_text_name] );
				}

				$free_text_atts = wpcf7_format_atts( $free_text_atts );

				$item .= sprintf( ' <input type="text" %s />', $free_text_atts );

				$class .= ' has-free-text';
			}
		}

		$item = '<span class="' . esc_attr( $class ) . '">' . $item . '</span>';
		$html .= $item;
	}

	$html = sprintf(
		'<span class="wpcf7-form-control-wrap" data-name="%1$s"><span %2$s>%3$s</span>%4$s</span>',
		esc_attr( $tag->name ),
		wpcf7_format_atts( $atts ),
		$html,
		$validation_error
	);

	return $html;
}


add_action(
	'wpcf7_swv_create_schema',
	'wpcf7_swv_add_checkbox_rules',
	10, 2
);

function wpcf7_swv_add_checkbox_rules( $schema, $contact_form ) {
	$tags = $contact_form->scan_form_tags( array(
		'basetype' => array( 'checkbox', 'radio' ),
	) );

	foreach ( $tags as $tag ) {
		if ( $tag->is_required() or 'radio' === $tag->type ) {
			$schema->add_rule(
				wpcf7_swv_create_rule( 'required', array(
					'field' => $tag->name,
					'error' => wpcf7_get_message( 'invalid_required' ),
				) )
			);
		}

		if ( 'radio' === $tag->type or $tag->has_option( 'exclusive' ) ) {
			$schema->add_rule(
				wpcf7_swv_create_rule( 'maxitems', array(
					'field' => $tag->name,
					'threshold' => 1,
					'error' => $contact_form->filter_message(
						__( "Too many items are selected.", 'contact-form-7' )
					),
				) )
			);
		}
	}
}


add_action(
	'wpcf7_swv_create_schema',
	'wpcf7_swv_add_checkbox_enum_rules',
	20, 2
);

function wpcf7_swv_add_checkbox_enum_rules( $schema, $contact_form ) {
	$tags = $contact_form->scan_form_tags( array(
		'basetype' => array( 'checkbox', 'radio' ),
	) );

	$values = array_reduce(
		$tags,
		function ( $values, $tag ) {
			if ( $tag->has_option( 'free_text' ) ) {
				$values[$tag->name] = 'free_text';
			}

			if (
				isset( $values[$tag->name] ) and
				! is_array( $values[$tag->name] ) // Maybe 'free_text'
			) {
				return $values;
			}

			if ( ! isset( $values[$tag->name] ) ) {
				$values[$tag->name] = array();
			}

			$tag_values = array_merge(
				(array) $tag->values,
				(array) $tag->get_data_option()
			);

			$values[$tag->name] = array_merge(
				$values[$tag->name],
				$tag_values
			);

			return $values;
		},
		array()
	);

	foreach ( $values as $field => $field_values ) {
		if ( ! is_array( $field_values ) ) { // Maybe 'free_text'
			continue;
		}

		$field_values = array_map(
			static function ( $value ) {
				return html_entity_decode(
					(string) $value,
					ENT_QUOTES | ENT_HTML5,
					'UTF-8'
				);
			},
			$field_values
		);

		$field_values = array_filter(
			array_unique( $field_values ),
			static function ( $value ) {
				return '' !== $value;
			}
		);

		$schema->add_rule(
			wpcf7_swv_create_rule( 'enum', array(
				'field' => $field,
				'accept' => array_values( $field_values ),
				'error' => $contact_form->filter_message(
					__( "Undefined value was submitted through this field.", 'contact-form-7' )
				),
			) )
		);
	}
}


add_filter( 'wpcf7_posted_data_checkbox',
	'wpcf7_posted_data_checkbox',
	10, 3
);

add_filter( 'wpcf7_posted_data_checkbox*',
	'wpcf7_posted_data_checkbox',
	10, 3
);

add_filter( 'wpcf7_posted_data_radio',
	'wpcf7_posted_data_checkbox',
	10, 3
);

function wpcf7_posted_data_checkbox( $value, $value_orig, $form_tag ) {
	if ( $form_tag->has_option( 'free_text' ) ) {
		$value = (array) $value;

		$free_text_name = sprintf( '_wpcf7_free_text_%s', $form_tag->name );
		$free_text = wp_unslash( $_POST[$free_text_name] ?? '' );

		$last_val = array_pop( $value );

		if ( isset( $last_val ) ) {
			$last_val = sprintf( '%s %s', $last_val, $free_text );
			$value[] = trim( $last_val );
		}
	}

	return $value;
}


/* Tag generator */

add_action( 'wpcf7_admin_init',
	'wpcf7_add_tag_generator_checkbox_and_radio', 30, 0 );

function wpcf7_add_tag_generator_checkbox_and_radio() {
	$tag_generator = WPCF7_TagGenerator::get_instance();

	$basetypes = array(
		'checkbox' => __( 'checkboxes', 'contact-form-7' ),
		'radio' => __( 'radio buttons', 'contact-form-7' ),
	);

	foreach ( $basetypes as $id => $title ) {
		$tag_generator->add( $id, $title,
			'wpcf7_tag_generator_checkbox',
			array( 'version' => '2' )
		);
	}
}

function wpcf7_tag_generator_checkbox( $contact_form, $options ) {
	$field_types = array(
		'checkbox' => array(
			'display_name' => __( 'Checkboxes', 'contact-form-7' ),
			'heading' => __( 'Checkboxes form-tag generator', 'contact-form-7' ),
			'description' => __( 'Generates a form-tag for a group of <a href="https://contactform7.com/checkboxes-radio-buttons-and-menus/">checkboxes</a>.', 'contact-form-7' ),
		),
		'radio' => array(
			'display_name' => __( 'Radio buttons', 'contact-form-7' ),
			'heading' => __( 'Radio buttons form-tag generator', 'contact-form-7' ),
			'description' => __( 'Generates a form-tag for a group of <a href="https://contactform7.com/checkboxes-radio-buttons-and-menus/">radio buttons</a>.', 'contact-form-7' ),
		),
	);

	$basetype = $options['id'];

	if ( ! in_array( $basetype, array_keys( $field_types ), true ) ) {
		$basetype = 'checkbox';
	}

	$tgg = new WPCF7_TagGeneratorGenerator( $options['content'] );

?>
<header class="description-box">
	<h3><?php
		echo esc_html( $field_types[$basetype]['heading'] );
	?></h3>

	<p><?php
		$description = wp_kses(
			$field_types[$basetype]['description'],
			array(
				'a' => array( 'href' => true ),
				'strong' => array(),
			),
			array( 'http', 'https' )
		);

		echo $description;
	?></p>
</header>

<div class="control-box">
	<?php
		$tgg->print( 'field_type', array(
			'with_required' => 'checkbox' === $basetype,
			'select_options' => array(
				$basetype => $field_types[$basetype]['display_name'],
			),
		) );

		$tgg->print( 'field_name' );

		$tgg->print( 'class_attr' );

		$tgg->print( 'selectable_values', array(
			'use_label_element' => 'checked',
		) );
	?>
</div>

<footer class="insert-box">
	<?php
		$tgg->print( 'insert_box_content' );

		$tgg->print( 'mail_tag_tip' );
	?>
</footer>
<?php
}
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akismet	---	0755
constant-contact	---	0755
recaptcha	---	0755
sendinblue	---	0755
stripe	---	0755
acceptance.php	7564 bytes	0644
checkbox.php	9759 bytes	0644
count.php	1484 bytes	0644
date.php	5854 bytes	0644
disallowed-list.php	1879 bytes	0644
doi-helper.php	730 bytes	0644
file.php	6357 bytes	0644
flamingo.php	8552 bytes	0644
hidden.php	776 bytes	0644
listo.php	755 bytes	0644
number.php	6432 bytes	0644
quiz.php	6439 bytes	0644
reflection.php	2320 bytes	0644
response.php	460 bytes	0644
select.php	6409 bytes	0644
submit.php	2367 bytes	0644
text.php	8205 bytes	0644
textarea.php	5002 bytes	0644
File Content: checkbox.php

File Content: `checkbox.php`
