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<?php
namespace WPForms\Frontend;
/**
* Modern render engine class.
*
* @since 1.8.1
*/
class Modern extends Classic {
/**
* Hooks.
*
* @since 1.8.1
*/
public function hooks() {
add_filter( 'wpforms_field_properties', [ $this, 'field_properties' ], 10, 3 );
add_filter( 'wpforms_get_field_required_label', [ $this, 'get_field_required_label' ], 10 );
add_filter( 'wpforms_frontend_strings', [ $this, 'frontend_strings' ], 10 );
}
/**
* Open form container.
*
* @since 1.8.1
*
* @param string $classes Form container classes.
* @param array $form_data Form data.
*/
public function form_container_open( $classes, $form_data ) {
$classes[] = 'wpforms-render-modern';
parent::form_container_open( $classes, $form_data );
}
/**
* Noscript message.
*
* @since 1.8.1
*
* @param string $msg Noscript message.
*/
public function noscript( $msg ) {
printf(
'<noscript class="wpforms-error-noscript">%1$s</noscript><div class="wpforms-hidden" id="wpforms-error-noscript">%1$s</div>',
esc_html( $msg )
);
}
/**
* Display form error.
*
* @since 1.8.1
*
* @param string $type Error type.
* @param string $error Error text.
*/
public function form_error( $type, $error ) {
switch ( $type ) {
case 'header':
case 'footer':
printf(
'<div id="wpforms-%1$s-%2$s-error" class="wpforms-error-container" role="alert">
<span class="wpforms-hidden" aria-hidden="false">%3$s</span>%4$s
</div>',
esc_attr( $this->form_data['id'] ?? 0 ),
esc_attr( $type ),
esc_html__( 'Form error message', 'wpforms-lite' ),
wpautop( wpforms_sanitize_error( $error ) ) // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
);
break;
case 'header_styled':
case 'footer_styled':
printf(
'<div id="wpforms-%1$s-%2$s-error" class="wpforms-error-container wpforms-error-styled-container" role="alert">
<div class="wpforms-error"><span class="wpforms-hidden" aria-hidden="false">%3$s</span>%4$s</div>
</div>',
esc_attr( $this->form_data['id'] ),
esc_attr( $type ),
esc_html__( 'Form error message', 'wpforms-lite' ),
wpautop( wpforms_sanitize_error( $error ) ) // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
);
break;
case 'header_styled':
case 'footer_styled':
printf(
'<div id="wpforms-%1$s-%2$s-error" class="wpforms-error-container wpforms-error-styled-container" role="alert">
<div class="wpforms-error"><span class="wpforms-hidden" aria-hidden="false">%3$s</span>%4$s</div>
</div>',
esc_attr( $this->form_data['id'] ),
esc_attr( $type ),
esc_html__( 'Form error message', 'wpforms-lite' ),
wpautop( wpforms_sanitize_error( $error ) ) // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
);
break;
case 'header_styled':
case 'footer_styled':
printf(
'<div id="wpforms-%1$s-%2$s-error" class="wpforms-error-container wpforms-error-styled-container" role="alert">
<div class="wpforms-error"><span class="wpforms-hidden" aria-hidden="false">%3$s</span>%4$s</div>
</div>',
esc_attr( $this->form_data['id'] ),
esc_attr( $type ),
esc_html__( 'Form error message', 'wpforms-lite' ),
wpautop( wpforms_sanitize_error( $error ) ) // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
);
break;
case 'recaptcha':
printf(
'<em id="wpforms-field_recaptcha-error" class="wpforms-error" role="alert">
<span class="wpforms-hidden" aria-hidden="false">%1$s</span>%2$s
</em>',
esc_attr__( 'Recaptcha error message', 'wpforms-lite' ),
wpforms_sanitize_error( $error ) // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
);
break;
}
}
/**
* Field label markup.
*
* @since 1.8.1
*
* @param array $field Field data and settings.
* @param array $form_data Form data and settings.
*/
public function field_label( $field, $form_data ) {
// Do not need to output label if the field requires fieldset.
if ( $this->is_field_requires_fieldset( $field ) ) {
return;
}
if ( ! empty( $field['label_hide'] ) ) {
$field['properties']['label']['attr']['aria-hidden'] = 'false';
}
parent::field_label( $field, $form_data );
}
/**
* Open fieldset markup.
*
* @since 1.8.1
*
* @param array $field Field data and settings.
* @param array $form_data Form data and settings.
*/
public function field_fieldset_open( $field, $form_data ) {
if ( ! $this->is_field_requires_fieldset( $field ) ) {
return;
}
if ( ! empty( $field['label_hide'] ) ) {
$field['properties']['label']['attr']['aria-hidden'] = 'false';
}
$label = $field['properties']['label'];
$required = $label['required'] ? wpforms_get_field_required_label() : '';
unset( $label['attr']['for'] );
printf(
'<fieldset><legend %s>%s%s</legend>',
wpforms_html_attributes( $label['id'], $label['class'], $label['data'], $label['attr'] ),
esc_html( $label['value'] ),
// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
$required
);
}
/**
* Close fieldset markup.
*
* @since 1.8.1
*
* @param array $field Field data and settings.
* @param array $form_data Form data and settings.
*/
public function field_fieldset_close( $field, $form_data ) {
if ( ! $this->is_field_requires_fieldset( $field ) ) {
return;
}
echo '</fieldset>';
}
/**
* Whether the field requires fieldset markup.
*
* @since 1.8.1
*
* @param array $field Field data and settings.
*/
private function is_field_requires_fieldset( $field ) {
if ( empty( $field['type'] ) ) {
return false;
}
/**
* Determine whether the field is requires fieldset+legend markup on the frontend.
*
* @since 1.8.1
*
* @param bool $requires_fieldset True if requires. Defaults to false.
* @param array $field Field data.
*/
return (bool) apply_filters( "wpforms_frontend_modern_is_field_requires_fieldset_{$field['type']}", false, $field );
}
/**
* Field error.
*
* @since 1.8.1
*
* @param array $field Field data and settings.
* @param array $form_data Form data and settings.
*
* @noinspection HtmlUnknownAttribute
*/
public function field_error( $field, $form_data ) {
if ( empty( $field['properties']['error'] ) ) {
return;
}
$error = $field['properties']['error'];
printf(
'<em %1$s>%2$s</em>',
wpforms_html_attributes( $error['id'], $error['class'], $error['data'], $error['attr'] ),
esc_html( $error['value'] )
);
}
/**
* Define additional field properties.
*
* @since 1.8.1
*
* @param array $properties Field properties.
* @param array $field Field settings.
* @param array $form_data Form data and settings.
*
* @return array
*/
public function field_properties( $properties, $field, $form_data ) {
$field_id = "wpforms-{$form_data['id']}-field_{$field['id']}";
$desc_id = "{$field_id}-description";
// Add `id` to field description.
$properties['description']['id'] = $desc_id;
// Add attributes to error message.
$properties['error']['attr']['role'] = 'alert';
$properties['error']['attr']['aria-label'] = esc_html__( 'Error message', 'wpforms-lite' );
$properties['error']['attr']['id'] = $properties['error']['attr']['for'] . '-error';
$properties['error']['attr']['for'] = '';
foreach ( $properties['inputs'] as $input => $input_data ) {
// Add `aria-errormessage` to inputs (except hidden according to W3C requirements).
if ( ! empty( $input_data['id'] ) && $field['type'] !== 'hidden' ) {
$properties['inputs'][ $input ]['attr']['aria-errormessage'] = "{$input_data['id']}-error";
}
// Add `aria-describedby` to inputs.
if ( ! empty( $field['description'] ) ) {
$properties['inputs'][ $input ]['attr']['aria-describedby'] = $desc_id;
}
}
return $properties;
}
/**
* Required label (asterisk) markup.
*
* @since 1.8.1
*
* @param string $label_html Required label markup.
*
* @return string
*/
public function get_field_required_label( $label_html ) {
return ' <span class="wpforms-required-label" aria-hidden="true">*</span>';
}
/**
* Modify javascript `wpforms_settings` properties on the front end.
*
* @since 1.8.1
*
* @param array $strings Array `wpforms_settings` properties.
*
* @return array
*/
public function frontend_strings( $strings ) {
$strings['isModernMarkupEnabled'] = wpforms_get_render_engine() === 'modern';
$strings['formErrorMessagePrefix'] = esc_html__( 'Form error message', 'wpforms-lite' );
$strings['errorMessagePrefix'] = esc_html__( 'Error message', 'wpforms-lite' );
$strings['submitBtnDisabled'] = esc_html__( 'Submit button is disabled during form submission.', 'wpforms-lite' );
return $strings;
}
}