<?php

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/**

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* WPSEO plugin file.

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*

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* @package WPSEO\Admin

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*/

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/**

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* Class WPSEO_Taxonomy_Presenter.

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*/

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class WPSEO_Taxonomy_Fields_Presenter {

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/**

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* The taxonomy meta data for the current term.

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*

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* @var array

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*/

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private $tax_meta;

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/**

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* Constructs the WPSEO_Taxonomy_Fields_Presenter class.

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*

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* @param stdClass $term The current term.

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*/

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public function __construct( $term ) {

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$this->tax_meta = WPSEO_Taxonomy_Meta::get_term_meta( (int) $term->term_id, $term->taxonomy );

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}

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/**

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* Displaying the form fields.

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*

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* @param array $fields Array with the fields that will be displayed.

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*

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* @return string

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*/

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public function html( array $fields ) {

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$content = '';

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foreach ( $fields as $field_name => $field_configuration ) {

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$content .= $this->form_row( 'wpseo_' . $field_name, $field_configuration );

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}

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return $content;

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}

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/**

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* Create a row in the form table.

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*

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* @param string $field_name Variable the row controls.

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* @param array $field_configuration Array with the field configuration.

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*

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* @return string

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*/

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private function form_row( $field_name, array $field_configuration ) {

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$esc_field_name = esc_attr( $field_name );

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$options = (array) $field_configuration['options'];

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if ( ! empty( $field_configuration['description'] ) ) {

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$options['description'] = $field_configuration['description'];

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}

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$label = $this->get_label( $field_configuration['label'], $esc_field_name );

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$field = $this->get_field( $field_configuration['type'], $esc_field_name, $this->get_field_value( $field_name ), $options );

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$help_content = ( $field_configuration['options']['help'] ?? '' );

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$help_button_text = ( $field_configuration['options']['help-button'] ?? '' );

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$help = new WPSEO_Admin_Help_Panel( $field_name, $help_button_text, $help_content );

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return $this->parse_row( $label, $help, $field );

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}

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/**

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* Generates the html for the given field config.

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*

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* @param string $field_type The fieldtype, e.g: text, checkbox, etc.

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* @param string $field_name The name of the field.

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* @param string $field_value The value of the field.

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* @param array $options Array with additional options.

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*

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* @return string

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*/

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private function get_field( $field_type, $field_name, $field_value, array $options ) {

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$class = $this->get_class( $options );

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$field = '';

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$description = '';

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$aria_describedby = '';

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if ( ! empty( $options['description'] ) ) {

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$aria_describedby = ' aria-describedby="' . $field_name . '-desc"';

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$description = '<p id="' . $field_name . '-desc" class="yoast-metabox__description">' . $options['description'] . '</p>';

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}

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switch ( $field_type ) {

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case 'div':

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$field .= '<div id="' . $field_name . '"></div>';

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break;

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case 'url':

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$field .= '<input name="' . $field_name . '" id="' . $field_name . '" ' . $class . ' type="url" value="' . esc_attr( urldecode( $field_value ) ) . '" size="40"' . $aria_describedby . '/>';

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break;

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case 'text':

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$field .= '<input name="' . $field_name . '" id="' . $field_name . '" ' . $class . ' type="text" value="' . esc_attr( $field_value ) . '" size="40"' . $aria_describedby . '/>';

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break;

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case 'checkbox':

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$field .= '<input name="' . $field_name . '" id="' . $field_name . '" type="checkbox" ' . checked( $field_value ) . $aria_describedby . '/>';

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break;

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case 'textarea':

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$rows = 3;

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if ( ! empty( $options['rows'] ) ) {

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$rows = $options['rows'];

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}

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$field .= '<textarea class="large-text" rows="' . esc_attr( $rows ) . '" id="' . $field_name . '" name="' . $field_name . '"' . $aria_describedby . '>' . esc_textarea( $field_value ) . '</textarea>';

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break;

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case 'upload':

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$field .= '<input'

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. ' id="' . $field_name . '"'

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. ' type="text"'

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. ' size="36"'

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. ' name="' . $field_name . '"'

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. ' value="' . esc_attr( $field_value ) . '"' . $aria_describedby . ''

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. ' readonly="readonly"'

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. ' /> ';

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$field .= '<input'

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. ' id="' . esc_attr( $field_name ) . '_button"'

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. ' class="wpseo_image_upload_button button"'

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. ' data-target="' . esc_attr( $field_name ) . '"'

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. ' data-target-id="hidden_' . esc_attr( $field_name ) . '-id"'

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. ' type="button"'

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. ' value="' . esc_attr__( 'Upload Image', 'wordpress-seo' ) . '"'

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. ' /> ';

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$field .= '<input'

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. ' id="' . esc_attr( $field_name ) . '_button"'

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. ' class="wpseo_image_remove_button button"'

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. ' type="button"'

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. ' value="' . esc_attr__( 'Clear Image', 'wordpress-seo' ) . '"'

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. ' />';

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break;

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case 'select':

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if ( is_array( $options ) && $options !== [] ) {

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$field .= '<select name="' . $field_name . '" id="' . $field_name . '"' . $aria_describedby . '>';

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$select_options = ( array_key_exists( 'options', $options ) ) ? $options['options'] : $options;

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foreach ( $select_options as $option => $option_label ) {

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$selected = selected( $option, $field_value, false );

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$field .= '<option ' . $selected . ' value="' . esc_attr( $option ) . '">' . esc_html( $option_label ) . '</option>';

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}

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unset( $option, $option_label, $selected );

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$field .= '</select>';

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}

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break;

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case 'hidden':

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$field .= '<input name="' . $field_name . '" id="hidden_' . $field_name . '" type="hidden" value="' . esc_attr( $field_value ) . '" />';

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break;

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}

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return $field . $description;

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}

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/**

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* Getting the value for given field_name.

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*

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* @param string $field_name The fieldname to get the value for.

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*

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* @return string

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*/

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private function get_field_value( $field_name ) {

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if ( isset( $this->tax_meta[ $field_name ] ) && $this->tax_meta[ $field_name ] !== '' ) {

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return $this->tax_meta[ $field_name ];

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}

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return '';

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}

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/**

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* Getting the class attributes if $options contains a class key.

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*

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* @param array $options The array with field options.

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*

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* @return string

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*/

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private function get_class( array $options ) {

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if ( ! empty( $options['class'] ) ) {

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return ' class="' . esc_attr( $options['class'] ) . '"';

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}

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return '';

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}

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/**

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* Getting the label HTML.

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*

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* @param string $label The label value.

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* @param string $field_name The target field.

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*

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* @return string

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*/

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private function get_label( $label, $field_name ) {

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if ( $label !== '' ) {

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return '<label for="' . $field_name . '">' . esc_html( $label ) . '</label>';

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}

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return '';

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}

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/**

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* Returns the HTML for the row which contains label, help and the field.

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*

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* @param string $label The html for the label if there was a label set.

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* @param WPSEO_Admin_Help_Panel $help The help panel to render in this row.

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* @param string $field The html for the field.

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*

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* @return string

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*/

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private function parse_row( $label, WPSEO_Admin_Help_Panel $help, $field ) {

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if ( $label !== '' || $help !== '' ) {

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return $label . $help->get_button_html() . $help->get_panel_html() . $field;

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}

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return $field;

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}

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}

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