<?php
/**
** A base module for the following types of tags:
** 	[text] and [text*]		# Single-line text
** 	[email] and [email*]	# Email address
** 	[url] and [url*]		# URL
** 	[tel] and [tel*]		# Telephone number
**/

/* Shortcode handler */

add_action( 'wpcf7_init', 'wpcf7_add_shortcode_text' );

function wpcf7_add_shortcode_text() {
	wpcf7_add_shortcode(
		array( 'text', 'text*', 'email', 'email*', 'url', 'url*', 'tel', 'tel*' ),
		'wpcf7_text_shortcode_handler', true );
}

function wpcf7_text_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, 'wpcf7-text' );

	if ( in_array( $tag->basetype, array( 'email', 'url', 'tel' ) ) )
		$class .= ' wpcf7-validates-as-' . $tag->basetype;

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

	$atts = array();

	$atts['size'] = $tag->get_size_option( '40' );
	$atts['maxlength'] = $tag->get_maxlength_option();
	$atts['minlength'] = $tag->get_minlength_option();

	if ( $atts['maxlength'] && $atts['minlength'] && $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', '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_text', 'wpcf7_text_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_text*', 'wpcf7_text_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_email', 'wpcf7_text_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_email*', 'wpcf7_text_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_url', 'wpcf7_text_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_url*', 'wpcf7_text_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_tel', 'wpcf7_text_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_tel*', 'wpcf7_text_validation_filter', 10, 2 );

function wpcf7_text_validation_filter( $result, $tag ) {
	$tag = new WPCF7_Shortcode( $tag );

	$name = $tag->name;

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

	if ( 'text' == $tag->basetype ) {
		if ( $tag->is_required() && '' == $value ) {
			$result->invalidate( $tag, wpcf7_get_message( 'invalid_required' ) );
		}
	}

	if ( 'email' == $tag->basetype ) {
		if ( $tag->is_required() && '' == $value ) {
			$result->invalidate( $tag, wpcf7_get_message( 'invalid_required' ) );
		} elseif ( '' != $value && ! wpcf7_is_email( $value ) ) {
			$result->invalidate( $tag, wpcf7_get_message( 'invalid_email' ) );
		}
	}

	if ( 'url' == $tag->basetype ) {
		if ( $tag->is_required() && '' == $value ) {
			$result->invalidate( $tag, wpcf7_get_message( 'invalid_required' ) );
		} elseif ( '' != $value && ! wpcf7_is_url( $value ) ) {
			$result->invalidate( $tag, wpcf7_get_message( 'invalid_url' ) );
		}
	}

	if ( 'tel' == $tag->basetype ) {
		if ( $tag->is_required() && '' == $value ) {
			$result->invalidate( $tag, wpcf7_get_message( 'invalid_required' ) );
		} elseif ( '' != $value && ! wpcf7_is_tel( $value ) ) {
			$result->invalidate( $tag, wpcf7_get_message( 'invalid_tel' ) );
		}
	}

	if ( ! empty( $value ) ) {
		$maxlength = $tag->get_maxlength_option();
		$minlength = $tag->get_minlength_option();

		if ( $maxlength && $minlength && $maxlength < $minlength ) {
			$maxlength = $minlength = null;
		}

		$code_units = wpcf7_count_code_units( $value );

		if ( false !== $code_units ) {
			if ( $maxlength && $maxlength < $code_units ) {
				$result->invalidate( $tag, wpcf7_get_message( 'invalid_too_long' ) );
			} elseif ( $minlength && $code_units < $minlength ) {
				$result->invalidate( $tag, wpcf7_get_message( 'invalid_too_short' ) );
			}
		}
	}

	return $result;
}


/* Messages */

add_filter( 'wpcf7_messages', 'wpcf7_text_messages' );

function wpcf7_text_messages( $messages ) {
	return array_merge( $messages, array(
		'invalid_email' => array(
			'description' => __( "Email address that the sender entered is invalid", 'contact-form-7' ),
			'default' => __( 'Email address seems invalid.', 'contact-form-7' )
		),

		'invalid_url' => array(
			'description' => __( "URL that the sender entered is invalid", 'contact-form-7' ),
			'default' => __( 'URL seems invalid.', 'contact-form-7' )
		),

		'invalid_tel' => array(
			'description' => __( "Telephone number that the sender entered is invalid", 'contact-form-7' ),
			'default' => __( 'Telephone number seems invalid.', 'contact-form-7' )
		) ) );
}


/* Tag generator */

add_action( 'admin_init', 'wpcf7_add_tag_generator_text', 15 );

function wpcf7_add_tag_generator_text() {
	if ( ! function_exists( 'wpcf7_add_tag_generator' ) )
		return;

	wpcf7_add_tag_generator( 'text', __( 'Text field', 'contact-form-7' ),
		'wpcf7-tg-pane-text', 'wpcf7_tg_pane_text' );

	wpcf7_add_tag_generator( 'email', __( 'Email', 'contact-form-7' ),
		'wpcf7-tg-pane-email', 'wpcf7_tg_pane_email' );

	wpcf7_add_tag_generator( 'url', __( 'URL', 'contact-form-7' ),
		'wpcf7-tg-pane-url', 'wpcf7_tg_pane_url' );

	wpcf7_add_tag_generator( 'tel', __( 'Telephone number', 'contact-form-7' ),
		'wpcf7-tg-pane-tel', 'wpcf7_tg_pane_tel' );
}

function wpcf7_tg_pane_text( $contact_form ) {
	wpcf7_tg_pane_text_and_relatives( 'text' );
}

function wpcf7_tg_pane_email( $contact_form ) {
	wpcf7_tg_pane_text_and_relatives( 'email' );
}

function wpcf7_tg_pane_url( $contact_form ) {
	wpcf7_tg_pane_text_and_relatives( 'url' );
}

function wpcf7_tg_pane_tel( $contact_form ) {
	wpcf7_tg_pane_text_and_relatives( 'tel' );
}

function wpcf7_tg_pane_text_and_relatives( $type = 'text' ) {
	if ( ! in_array( $type, array( 'email', 'url', 'tel' ) ) )
		$type = 'text';

?>
<div id="wpcf7-tg-pane-<?php echo $type; ?>" class="hidden">
<form action="">
<table>
<tr><td><input type="checkbox" name="required" />&nbsp;<?php echo esc_html( __( 'Required field?', 'contact-form-7' ) ); ?></td></tr>
<tr><td><?php echo esc_html( __( 'Name', 'contact-form-7' ) ); ?><br /><input type="text" name="name" class="tg-name oneline" /></td><td></td></tr>
</table>

<table>
<tr>
<td><code>id</code> (<?php echo esc_html( __( 'optional', 'contact-form-7' ) ); ?>)<br />
<input type="text" name="id" class="idvalue oneline option" /></td>

<td><code>class</code> (<?php echo esc_html( __( 'optional', 'contact-form-7' ) ); ?>)<br />
<input type="text" name="class" class="classvalue oneline option" /></td>
</tr>

<tr>
<td><code>size</code> (<?php echo esc_html( __( 'optional', 'contact-form-7' ) ); ?>)<br />
<input type="number" name="size" class="numeric oneline option" min="1" /></td>

<td><code>maxlength</code> (<?php echo esc_html( __( 'optional', 'contact-form-7' ) ); ?>)<br />
<input type="number" name="maxlength" class="numeric oneline option" min="1" /></td>
</tr>

<?php if ( in_array( $type, array( 'text', 'email', 'url' ) ) ) : ?>
<tr>
<td colspan="2"><?php echo esc_html( __( 'Akismet', 'contact-form-7' ) ); ?> (<?php echo esc_html( __( 'optional', 'contact-form-7' ) ); ?>)<br />
<?php if ( 'text' == $type ) : ?>
<input type="checkbox" name="akismet:author" class="option" />&nbsp;<?php echo esc_html( __( "This field requires author's name", 'contact-form-7' ) ); ?><br />
<?php elseif ( 'email' == $type ) : ?>
<input type="checkbox" name="akismet:author_email" class="option" />&nbsp;<?php echo esc_html( __( "This field requires author's email address", 'contact-form-7' ) ); ?>
<?php elseif ( 'url' == $type ) : ?>
<input type="checkbox" name="akismet:author_url" class="option" />&nbsp;<?php echo esc_html( __( "This field requires author's URL", 'contact-form-7' ) ); ?>
<?php endif; ?>
</td>
</tr>
<?php endif; ?>

<tr>
<td><?php echo esc_html( __( 'Default value', 'contact-form-7' ) ); ?> (<?php echo esc_html( __( 'optional', 'contact-form-7' ) ); ?>)<br /><input type="text" name="values" class="oneline" /></td>

<td>
<br /><input type="checkbox" name="placeholder" class="option" />&nbsp;<?php echo esc_html( __( 'Use this text as placeholder?', 'contact-form-7' ) ); ?>
</td>
</tr>
</table>

<div class="tg-tag"><?php echo esc_html( __( "Copy this code and paste it into the form left.", 'contact-form-7' ) ); ?><br /><input type="text" name="<?php echo $type; ?>" class="tag wp-ui-text-highlight code" readonly="readonly" onfocus="this.select()" /></div>

<div class="tg-mail-tag"><?php echo esc_html( __( "And, put this code into the Mail fields below.", 'contact-form-7' ) ); ?><br /><input type="text" class="mail-tag wp-ui-text-highlight code" readonly="readonly" onfocus="this.select()" /></div>
</form>
</div>
<?php
}

?>