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EDITING: number.php

<?php
/**
** A base module for the following types of tags:
** 	[number] and [number*]		# Number
** 	[range] and [range*]		# Range
**/

/* form_tag handler */

add_action( 'wpcf7_init', 'wpcf7_add_form_tag_number' );

function wpcf7_add_form_tag_number() {
	wpcf7_add_form_tag( array( 'number', 'number*', 'range', 'range*' ),
		'wpcf7_number_form_tag_handler', array( 'name-attr' => true ) );
}

function wpcf7_number_form_tag_handler( $tag ) {
	$tag = new WPCF7_FormTag( $tag );

if ( empty( $tag->name ) ) {
		return '';
	}

$validation_error = wpcf7_get_validation_error( $tag->name );

$class = wpcf7_form_controls_class( $tag->type );

$class .= ' wpcf7-validates-as-number';

if ( $validation_error ) {
		$class .= ' wpcf7-not-valid';
	}

$atts = array();

$atts['class'] = $tag->get_class_option( $class );
	$atts['id'] = $tag->get_id_option();
	$atts['tabindex'] = $tag->get_option( 'tabindex', 'int', true );
	$atts['min'] = $tag->get_option( 'min', 'signed_int', true );
	$atts['max'] = $tag->get_option( 'max', 'signed_int', true );
	$atts['step'] = $tag->get_option( 'step', 'int', true );

if ( $tag->has_option( 'readonly' ) ) {
		$atts['readonly'] = 'readonly';
	}

if ( $tag->is_required() ) {
		$atts['aria-required'] = 'true';
	}

$atts['aria-invalid'] = $validation_error ? 'true' : 'false';

$value = (string) reset( $tag->values );

if ( $tag->has_option( 'placeholder' ) || $tag->has_option( 'watermark' ) ) {
		$atts['placeholder'] = $value;
		$value = '';
	}

$value = $tag->get_default_option( $value );

$value = wpcf7_get_hangover( $tag->name, $value );

$atts['value'] = $value;

if ( wpcf7_support_html5() ) {
		$atts['type'] = $tag->basetype;
	} else {
		$atts['type'] = 'text';
	}

$atts['name'] = $tag->name;

$atts = wpcf7_format_atts( $atts );

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

return $html;
}

/* Validation filter */

add_filter( 'wpcf7_validate_number', 'wpcf7_number_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_number*', 'wpcf7_number_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_range', 'wpcf7_number_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_range*', 'wpcf7_number_validation_filter', 10, 2 );

function wpcf7_number_validation_filter( $result, $tag ) {
	$tag = new WPCF7_FormTag( $tag );

$name = $tag->name;

$value = isset( $_POST[$name] )
		? trim( strtr( (string) $_POST[$name], "\n", " " ) )
		: '';

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

if ( $tag->is_required() && '' == $value ) {
		$result->invalidate( $tag, wpcf7_get_message( 'invalid_required' ) );
	} elseif ( '' != $value && ! wpcf7_is_number( $value ) ) {
		$result->invalidate( $tag, wpcf7_get_message( 'invalid_number' ) );
	} elseif ( '' != $value && '' != $min && (float) $value < (float) $min ) {
		$result->invalidate( $tag, wpcf7_get_message( 'number_too_small' ) );
	} elseif ( '' != $value && '' != $max && (float) $max < (float) $value ) {
		$result->invalidate( $tag, wpcf7_get_message( 'number_too_large' ) );
	}

return $result;
}

/* Messages */

add_filter( 'wpcf7_messages', 'wpcf7_number_messages' );

function wpcf7_number_messages( $messages ) {
	return array_merge( $messages, array(
		'invalid_number' => array(
			'description' => __( "Number format that the sender entered is invalid", 'contact-form-7' ),
			'default' => __( "The number format is invalid.", 'contact-form-7' )
		),

'number_too_small' => array(
			'description' => __( "Number is smaller than minimum limit", 'contact-form-7' ),
			'default' => __( "The number is smaller than the minimum allowed.", 'contact-form-7' )
		),

'number_too_large' => array(
			'description' => __( "Number is larger than maximum limit", 'contact-form-7' ),
			'default' => __( "The number is larger than the maximum allowed.", 'contact-form-7' )
		) ) );
}

/* Tag generator */

add_action( 'wpcf7_admin_init', 'wpcf7_add_tag_generator_number', 18 );

function wpcf7_add_tag_generator_number() {
	$tag_generator = WPCF7_TagGenerator::get_instance();
	$tag_generator->add( 'number', __( 'number', 'contact-form-7' ),
		'wpcf7_tag_generator_number' );
}

function wpcf7_tag_generator_number( $contact_form, $args = '' ) {
	$args = wp_parse_args( $args, array() );
	$type = 'number';

$description = __( "Generate a form-tag for a field for numeric value input. For more details, see %s.", 'contact-form-7' );

$desc_link = wpcf7_link( __( 'https://contactform7.com/number-fields/', 'contact-form-7' ), __( 'Number Fields', 'contact-form-7' ) );

?>
<div class="control-box">
<fieldset>
<legend><?php echo sprintf( esc_html( $description ), $desc_link ); ?></legend>

<tr>
	<th scope="row"><?php echo esc_html( __( 'Range', 'contact-form-7' ) ); ?></th>
	<td>
		<fieldset>
		<legend class="screen-reader-text"><?php echo esc_html( __( 'Range', 'contact-form-7' ) ); ?></legend>
		<label>
		<?php echo esc_html( __( 'Min', 'contact-form-7' ) ); ?>
		<input type="number" name="min" class="numeric option" />
		</label>
		&ndash;
		<label>
		<?php echo esc_html( __( 'Max', 'contact-form-7' ) ); ?>
		<input type="number" name="max" class="numeric option" />
		</label>
		</fieldset>
	</td>
	</tr>

<div class="insert-box">
	<input type="text" name="<?php echo $type; ?>" class="tag code" readonly="readonly" onfocus="this.select()" />

<p class="description mail-tag"><label for="<?php echo esc_attr( $args['content'] . '-mailtag' ); ?>"><?php echo sprintf( esc_html( __( "To use the value input through this field in a mail field, you need to insert the corresponding mail-tag (%s) into the field on the Mail tab.", 'contact-form-7' ) ), '<strong><span class="mail-tag"></span></strong>' ); ?><input type="text" class="mail-tag code hidden" readonly="readonly" id="<?php echo esc_attr( $args['content'] . '-mailtag' ); ?>" /></label></p>
</div>
<?php
}

CANCEL

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