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

/* Shortcode handler */

add_action( 'init', 'wpcf7_add_shortcode_textarea', 5 );

function wpcf7_add_shortcode_textarea() {
	wpcf7_add_shortcode( array( 'textarea', 'textarea*' ),
		'wpcf7_textarea_shortcode_handler', true );
}

function wpcf7_textarea_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['maxlength'] = $tag->get_maxlength_option();
	$atts['class'] = $tag->get_class_option( $class );
	$atts['id'] = $tag->get_option( 'id', 'id', true );
	$atts['tabindex'] = $tag->get_option( 'tabindex', 'int', true );

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

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

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

if ( '' !== $tag->content )
		$value = $tag->content;

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

if ( wpcf7_is_posted() && isset( $_POST[$tag->name] ) )
		$value = stripslashes_deep( $_POST[$tag->name] );

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

$atts = wpcf7_format_atts( $atts );

$html = sprintf(
		'<textarea %2$s>%3$s</textarea>%4$s',
		$tag->name, $atts, esc_textarea( $value ), $validation_error );

return $html;
}

/* Validation filter */

add_filter( 'wpcf7_validate_textarea', 'wpcf7_textarea_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_textarea*', 'wpcf7_textarea_validation_filter', 10, 2 );

function wpcf7_textarea_validation_filter( $result, $tag ) {
	$tag = new WPCF7_Shortcode( $tag );

$type = $tag->type;
	$name = $tag->name;

$value = isset( $_POST[$name] ) ? (string) $_POST[$name] : '';

if ( 'textarea*' == $type ) {
		if ( '' == $value ) {
			$result['valid'] = false;
			$result['reason'][$name] = wpcf7_get_message( 'invalid_required' );
		}
	}

return $result;
}

/* Tag generator */

add_action( 'admin_init', 'wpcf7_add_tag_generator_textarea', 20 );

function wpcf7_add_tag_generator_textarea() {
	if ( ! function_exists( 'wpcf7_add_tag_generator' ) )
		return;

wpcf7_add_tag_generator( 'textarea', __( 'Text area', 'wpcf7' ),
		'wpcf7-tg-pane-textarea', 'wpcf7_tg_pane_textarea' );
}

function wpcf7_tg_pane_textarea( &$contact_form ) {
?>
<div id="wpcf7-tg-pane-textarea" class="hidden">
<form action="">
<table>
<tr><td><input type="checkbox" name="required" />&nbsp;<?php echo esc_html( __( 'Required field?', 'wpcf7' ) ); ?></td></tr>
<tr><td><?php echo esc_html( __( 'Name', 'wpcf7' ) ); ?><br /><input type="text" name="name" class="tg-name oneline" /></td><td></td></tr>
</table>

<td><code>class</code> (<?php echo esc_html( __( 'optional', 'wpcf7' ) ); ?>)<br />
<input type="text" name="class" class="classvalue oneline option" /></td>
</tr>

<tr>
<td><code>maxlength</code> (<?php echo esc_html( __( 'optional', 'wpcf7' ) ); ?>)<br />
<input type="number" name="maxlength" class="numeric oneline option" min="1" /></td>
</tr>

<div class="tg-mail-tag"><?php echo esc_html( __( "And, put this code into the Mail fields below.", 'wpcf7' ) ); ?><br /><span class="arrow">&#11015;</span>&nbsp;<input type="text" class="mail-tag" readonly="readonly" onfocus="this.select()" /></div>
</form>
</div>
<?php
}