firepot

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<?php
/**
** A base module for [textarea] and [textarea*]
**/

/* form_tag handler */

add_action( 'wpcf7_init', 'wpcf7_add_form_tag_textarea', 10, 0 );

function wpcf7_add_form_tag_textarea() {
	wpcf7_add_form_tag( array( 'textarea', 'textarea*' ),
		'wpcf7_textarea_form_tag_handler', array( 'name-attr' => true )
	);
}

function wpcf7_textarea_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['cols'] = $tag->get_cols_option( '40' );
	$atts['rows'] = $tag->get_rows_option( '10' );
	$atts['maxlength'] = $tag->get_maxlength_option( '400' );
	$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['readonly'] = $tag->has_option( 'readonly' );

$atts['autocomplete'] = $tag->get_option(
		'autocomplete', '[-0-9a-zA-Z]+', true
	);

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

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

$value = empty( $tag->content )
		? (string) reset( $tag->values )
		: $tag->content;

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

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

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

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

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

return $html;
}

add_action(
	'wpcf7_swv_create_schema',
	'wpcf7_swv_add_textarea_rules',
	10, 2
);

function wpcf7_swv_add_textarea_rules( $schema, $contact_form ) {
	$tags = $contact_form->scan_form_tags( array(
		'basetype' => array( 'textarea' ),
	) );

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

if ( $minlength = $tag->get_minlength_option() ) {
			$schema->add_rule(
				wpcf7_swv_create_rule( 'minlength', array(
					'field' => $tag->name,
					'threshold' => absint( $minlength ),
					'error' => wpcf7_get_message( 'invalid_too_short' ),
				) )
			);
		}

if ( $maxlength = $tag->get_maxlength_option( '400' ) ) {
			$schema->add_rule(
				wpcf7_swv_create_rule( 'maxlength', array(
					'field' => $tag->name,
					'threshold' => absint( $maxlength ),
					'error' => wpcf7_get_message( 'invalid_too_long' ),
				) )
			);
		}
	}
}

/* Tag generator */

add_action( 'wpcf7_admin_init', 'wpcf7_add_tag_generator_textarea', 20, 0 );

function wpcf7_add_tag_generator_textarea() {
	$tag_generator = WPCF7_TagGenerator::get_instance();
	$tag_generator->add( 'textarea', __( 'text area', 'contact-form-7' ),
		'wpcf7_tag_generator_textarea' );
}

function wpcf7_tag_generator_textarea( $contact_form, $args = '' ) {
	$args = wp_parse_args( $args, array() );
	$type = 'textarea';

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

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

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

</tbody>
</table>
</fieldset>
</div>

<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
}