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Editing: tag-generator.php

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<?php

/**
 * The base class for form-tag generators management.
 */
class WPCF7_TagGenerator {

private static $instance;

private $panels = array();

private function __construct() {}

/**
	 * Returns the singleton instance of this class.
	 */
	public static function get_instance() {
		if ( empty( self::$instance ) ) {
			self::$instance = new self();
		}

return self::$instance;
	}

/**
	 * Adds a form-tag generator instance.
	 */
	public function add( $id, $title, $callback, $options = '' ) {
		$id = trim( $id );

if (
			'' === $id or
			! wpcf7_is_name( $id ) or
			! is_callable( $callback )
		) {
			return false;
		}

$options = wp_parse_args( $options, array(
			'version' => '1',
		) );

$this->panels[$id] = array(
			'title' => $title,
			'content' => 'tag-generator-panel-' . $id,
			'options' => $options,
			'callback' => $callback,
		);

if ( version_compare( $options['version'], '2', '<' ) ) {
			$message = sprintf(
				/* translators: 1: version, 2: tag generator title */
				__( 'Use of tag generator instances older than version 2 is deprecated. Version %1$s instance (%2$s) detected.', 'contact-form-7' ),
				$options['version'],
				$title
			);

wp_trigger_error( __METHOD__, $message, E_USER_DEPRECATED );
		}

return true;
	}

/**
	 * Renders form-tag generator calling buttons.
	 */
	public function print_buttons() {
		$formatter = new WPCF7_HTMLFormatter();

$formatter->append_start_tag( 'span', array(
			'id' => 'tag-generator-list',
			'class' => 'hide-if-no-js',
		) );

foreach ( (array) $this->panels as $panel ) {
			$formatter->append_start_tag( 'button', array(
				'type' => 'button',
				'data-taggen' => 'open-dialog',
				'data-target' => $panel['content'],
				'title' => sprintf(
					/* translators: %s: title of form-tag */
					__( 'Form-tag Generator: %s', 'contact-form-7' ),
					$panel['title']
				),
			) );

$formatter->append_preformatted( esc_html( $panel['title'] ) );
		}

$formatter->print();
	}

/**
	 * Renders form-tag generator dialog panels (hidden until called).
	 */
	public function print_panels( WPCF7_ContactForm $contact_form ) {
		$formatter = new WPCF7_HTMLFormatter( array(
			'allowed_html' => array_merge( wpcf7_kses_allowed_html(), array(
				'dialog' => array(
					'id' => true,
					'class' => true,
				),
				'form' => array(
					'method' => true,
					'class' => true,
					'data-*' => true,
				),
			) ),
		) );

foreach ( (array) $this->panels as $id => $panel ) {
			$callback = $panel['callback'];

$options = array_merge( $panel['options'], array(
				'id' => $id,
				'title' => $panel['title'],
				'content' => $panel['content'],
			) );

if ( is_callable( $callback ) ) {
				$formatter->append_start_tag( 'dialog', array(
					'id' => $options['content'],
					'class' => 'tag-generator-dialog',
				) );

$formatter->append_start_tag( 'button', array(
					'class' => 'close-button',
					'title' => __( 'Close this dialog box', 'contact-form-7' ),
					'data-taggen' => 'close-dialog',
				) );

$formatter->append_preformatted(
					esc_html( __( 'Close', 'contact-form-7' ) )
				);

$formatter->end_tag( 'button' );

$formatter->append_start_tag( 'form', array(
					'method' => 'dialog',
					'class' => 'tag-generator-panel',
					'data-id' => $options['id'],
					'data-version' => $options['version'],
				) );

$formatter->call_user_func( $callback, $contact_form, $options );

$formatter->close_all_tags();
			}
		}

$formatter->print();
	}

}

/**
 * Class helps to implement a form-tag generator content.
 */
class WPCF7_TagGeneratorGenerator {

private $key = '';

/**
	 * The constructor.
	 */
	public function __construct( $key ) {
		$this->key = $key;
	}

/**
	 * Returns a unique reference ID.
	 */
	public function ref( $suffix = '' ) {
		$ref = sprintf( '%s-%s', $this->key, $suffix );
		$ref = strtolower( $ref );
		$ref = preg_replace( '/[^0-9a-z-]/', '', $ref );
		$ref = preg_replace( '/[-]+/', '-', $ref );
		$ref = trim( $ref, '-' );
		return $ref;
	}

/**
	 * Calls one of the template methods.
	 */
	public function print( $part, $options = '' ) {
		if ( is_callable( array( $this, $part ) ) ) {
			call_user_func( array( $this, $part ), $options );
		}
	}

/**
	 * Template method for field type field.
	 */
	private function field_type( $options = '' ) {
		$options = wp_parse_args( $options, array(
			'with_required' => false,
			'with_optional' => false,
			'select_options' => array(),
		) );

$formatter = new WPCF7_HTMLFormatter();

$formatter->append_start_tag( 'fieldset' );

$formatter->append_start_tag( 'legend', array(
			'id' => $this->ref( 'type-legend' ),
		) );

$formatter->append_preformatted(
			esc_html( __( 'Field type', 'contact-form-7' ) )
		);

$formatter->end_tag( 'legend' );

$formatter->append_start_tag( 'select', array(
			'data-tag-part' => 'basetype',
			'aria-labelledby' => $this->ref( 'type-legend' ),
		) );

foreach ( (array) $options['select_options'] as $basetype => $title ) {
			$formatter->append_start_tag( 'option', array(
				'value' => $basetype,
			) );

$formatter->append_preformatted( esc_html( $title ) );
		}

$formatter->end_tag( 'select' );

if ( $options['with_required'] ) {
			$formatter->append_start_tag( 'br' );
			$formatter->append_start_tag( 'label' );

$formatter->append_start_tag( 'input', array(
				'type' => 'checkbox',
				'data-tag-part' => 'type-suffix',
				'value' => '*',
			) );

$formatter->append_whitespace();

$formatter->append_preformatted(
				esc_html( __( 'This is a required field.', 'contact-form-7' ) )
			);
		}

if ( $options['with_optional'] ) {
			$formatter->append_start_tag( 'br' );
			$formatter->append_start_tag( 'label' );

$formatter->append_start_tag( 'input', array(
				'type' => 'checkbox',
				'data-tag-part' => 'option',
				'data-tag-option' => 'optional',
				'checked' => true,
			) );

$formatter->append_whitespace();

$formatter->append_preformatted(
				esc_html( __( 'This checkbox is optional.', 'contact-form-7' ) )
			);
		}

$formatter->print();
	}

/**
	 * Template method for field name field.
	 */
	private function field_name( $options = '' ) {
		$options = wp_parse_args( $options, array(
			'ask_if' => '',
		) );

?>
<fieldset>
	<legend id="<?php echo esc_attr( $this->ref( 'name-legend' ) ); ?>"><?php
		echo esc_html( __( 'Field name', 'contact-form-7' ) );
	?></legend>
	<input type="text" data-tag-part="name" pattern="[A-Za-z][A-Za-z0-9_\-]*" aria-labelledby="<?php echo esc_attr( $this->ref( 'name-legend' ) ); ?>" />

<?php
		$tag_option = $label = '';

if ( 'author_name' === $options['ask_if'] ) {
			$tag_option = 'autocomplete:name';

if ( wpcf7_akismet_is_available() ) {
				$tag_option .= ' akismet:author';
			}

$label = __( "This field expects the submitter name.", 'contact-form-7' );
		} elseif ( 'author_email' === $options['ask_if'] ) {
			$tag_option = 'autocomplete:email';

if ( wpcf7_akismet_is_available() ) {
				$tag_option .= ' akismet:author_email';
			}

$label = __( "This field expects the submitter email.", 'contact-form-7' );
		} elseif ( 'author_url' === $options['ask_if'] ) {
			$tag_option = 'autocomplete:url';

if ( wpcf7_akismet_is_available() ) {
				$tag_option .= ' akismet:author_url';
			}

$label = __( "This field expects the submitter URL.", 'contact-form-7' );
		} elseif ( 'author_tel' === $options['ask_if'] ) {
			$tag_option = 'autocomplete:tel';
			$label = __( "This field expects the submitter telephone number.", 'contact-form-7' );
		}

if ( $tag_option ) {
?>
	<br />
	<label>
		<input type="checkbox" data-tag-part="option" data-tag-option="<?php echo esc_attr( $tag_option ); ?>" />
		<?php echo esc_html( $label ); ?>
	</label>
<?php
		}
?>
</fieldset>
<?php
	}

/**
	 * Template method for ID attribute option field.
	 */
	private function id_attr( $options = '' ) {
?>
<fieldset>
	<legend id="<?php echo esc_attr( $this->ref( 'id-legend' ) ); ?>"><?php
		echo esc_html( __( 'ID attribute', 'contact-form-7' ) );
	?></legend>
	<input type="text" data-tag-part="option" data-tag-option="id:" pattern="[A-Za-z][A-Za-z0-9_\-]*" aria-labelledby="<?php echo esc_attr( $this->ref( 'id-legend' ) ); ?>" />
</fieldset>
<?php
	}

/**
	 * Template method for class attribute option field.
	 */
	private function class_attr( $options = '' ) {
?>
<fieldset>
	<legend id="<?php echo esc_attr( $this->ref( 'class-legend' ) ); ?>"><?php
		echo esc_html( __( 'Class attribute', 'contact-form-7' ) );
	?></legend>
	<input type="text" data-tag-part="option" data-tag-option="class:" pattern="[A-Za-z0-9_\-\s]*" aria-labelledby="<?php echo esc_attr( $this->ref( 'class-legend' ) ); ?>" />
</fieldset>
<?php
	}

/**
	 * Template method for min/max options.
	 */
	private function min_max( $options = '' ) {
		$options = wp_parse_args( $options, array(
			'type' => 'number',
			'title' => __( 'Length', 'contact-form-7' ),
			'min_option' => 'minlength:',
			'max_option' => 'maxlength:',
			'accept_minus' => false,
		) );

$formatter = new WPCF7_HTMLFormatter();

$formatter->append_start_tag( 'fieldset' );

$formatter->append_start_tag( 'legend' );
		$formatter->append_preformatted( esc_html( $options['title'] ) );
		$formatter->end_tag( 'legend' );

$formatter->append_start_tag( 'label' );

$formatter->append_preformatted(
			esc_html( __( 'Min', 'contact-form-7' ) )
		);

$formatter->append_whitespace();

$formatter->append_start_tag( 'input', array(
			'type' => $options['type'],
			'data-tag-part' => 'option',
			'data-tag-option' => $options['min_option'],
			'min' => $options['accept_minus'] ? null : 0,
		) );

$formatter->end_tag( 'label' );

$formatter->append_preformatted( ' &#8660; ' );

$formatter->append_start_tag( 'label' );

$formatter->append_preformatted(
			esc_html( __( 'Max', 'contact-form-7' ) )
		);

$formatter->append_whitespace();

$formatter->append_start_tag( 'input', array(
			'type' => $options['type'],
			'data-tag-part' => 'option',
			'data-tag-option' => $options['max_option'],
			'min' => $options['accept_minus'] ? null : 0,
		) );

$formatter->end_tag( 'label' );

$formatter->print();
	}

/**
	 * Template method for default value field.
	 */
	private function default_value( $options = '' ) {
		$options = wp_parse_args( $options, array(
			'type' => 'text',
			'title' => __( 'Default value', 'contact-form-7' ),
			'with_placeholder' => false,
			'use_content' => false,
		) );

$formatter = new WPCF7_HTMLFormatter();

$formatter->append_start_tag( 'fieldset' );

$formatter->append_start_tag( 'legend', array(
			'id' => $this->ref( 'value-legend' ),
		) );

$formatter->append_preformatted( esc_html( $options['title'] ) );

$formatter->end_tag( 'legend' );

$formatter->append_start_tag( 'input', array(
			'type' => $options['type'],
			'data-tag-part' => $options['use_content'] ? 'content' : 'value',
			'aria-labelledby' => $this->ref( 'value-legend' ),
		) );

if ( $options['with_placeholder'] ) {
			$formatter->append_start_tag( 'br' );
			$formatter->append_start_tag( 'label' );

$formatter->append_start_tag( 'input', array(
				'type' => 'checkbox',
				'data-tag-part' => 'option',
				'data-tag-option' => 'placeholder',
			) );

$formatter->append_whitespace();

$formatter->append_preformatted(
				esc_html( __( 'Use this text as the placeholder.', 'contact-form-7' ) )
			);
		}

$formatter->print();
	}

/**
	 * Template method for selectable values useful for checkboxes or a menu.
	 */
	private function selectable_values( $options = '' ) {
		$options = wp_parse_args( $options, array(
			'first_as_label' => false,
			'use_label_element' => false,
		) );

$formatter = new WPCF7_HTMLFormatter();

$formatter->append_start_tag( 'fieldset' );

$formatter->append_start_tag( 'legend', array(
			'id' => $this->ref( 'selectable-values-legend' ),
		) );

$formatter->append_preformatted(
			esc_html( __( 'Selectable values', 'contact-form-7' ) )
		);

$formatter->end_tag( 'legend' );

$formatter->append_start_tag( 'span', array(
			'id' => $this->ref( 'selectable-values-description' ),
		) );

$formatter->append_preformatted(
			esc_html( __( 'One item per line.', 'contact-form-7' ) )
		);

$formatter->end_tag( 'span' );

$formatter->append_start_tag( 'br' );

$formatter->append_start_tag( 'textarea', array(
			'required' => true,
			'data-tag-part' => 'value',
			'aria-labelledby' => $this->ref( 'selectable-values-legend' ),
			'aria-describedby' => $this->ref( 'selectable-values-description' ),
		) );

$formatter->append_preformatted(
			esc_html( __( "Option 1\nOption 2\nOption 3", 'contact-form-7' ) )
		);

$formatter->end_tag( 'textarea' );

if ( $options['first_as_label'] ) {
			$formatter->append_start_tag( 'br' );
			$formatter->append_start_tag( 'label' );

$formatter->append_start_tag( 'input', array(
				'type' => 'checkbox',
				'checked' => 'checked' === $options['first_as_label'],
				'data-tag-part' => 'option',
				'data-tag-option' => 'first_as_label',
			) );

$formatter->append_whitespace();

$formatter->append_preformatted(
				esc_html( __( 'Use the first item as a label.', 'contact-form-7' ) )
			);

$formatter->end_tag( 'label' );
		}

if ( $options['use_label_element'] ) {
			$formatter->append_start_tag( 'br' );
			$formatter->append_start_tag( 'label' );

$formatter->append_start_tag( 'input', array(
				'type' => 'checkbox',
				'checked' => 'checked' === $options['use_label_element'],
				'data-tag-part' => 'option',
				'data-tag-option' => 'use_label_element',
			) );

$formatter->append_whitespace();

$formatter->append_preformatted(
				esc_html( __( 'Wrap each item with a label element.', 'contact-form-7' ) )
			);

$formatter->end_tag( 'label' );
		}

$formatter->print();
	}

/**
	 * Template method for insert-box content including the result form-tag.
	 */
	private function insert_box_content( $options = '' ) {
		$formatter = new WPCF7_HTMLFormatter();

$formatter->append_start_tag( 'div', array(
			'class' => 'flex-container',
		) );

$formatter->append_start_tag( 'input', array(
			'type' => 'text',
			'class' => 'code selectable',
			'readonly' => true,
			'data-tag-part' => 'tag',
			'aria-label' => __( 'The form-tag to be inserted into the form template', 'contact-form-7' ),
		) );

$formatter->append_whitespace();

$formatter->append_start_tag( 'button', array(
			'type' => 'button',
			'class' => 'button button-primary',
			'data-taggen' => 'insert-tag',
		) );

$formatter->append_preformatted(
			esc_html( __( 'Insert Tag', 'contact-form-7' ) )
		);

$formatter->end_tag( 'button' );

$formatter->print();
	}

/**
	 * Template method for a tip message about mail-tag.
	 */
	private function mail_tag_tip( $options = '' ) {
		$formatter = new WPCF7_HTMLFormatter();

$formatter->append_start_tag( 'p', array(
			'class' => 'mail-tag-tip',
		) );

$formatter->append_preformatted( sprintf(
			/* translators: %s: mail-tag corresponding to the form-tag */
			esc_html( __( 'To use the user input in the email, insert the corresponding mail-tag %s into the email template.', 'contact-form-7' ) ),
			'<strong data-tag-part="mail-tag"></strong>'
		) );

$formatter->print();
	}

}

Editing: tag-generator.php

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