$classes,
)
);
// Set default values.
$format = '%link';
$link = 'next' === $navigation_type ? __( 'Next', 'brandy' ) : __( 'Previous', 'brandy' );
$label = '';
// Only use hardcoded values here, otherwise we need to add escaping where these values are used.
$arrow_map = array(
'none' => '',
'arrow' => array(
'next' => '→',
'previous' => '←',
),
'chevron' => array(
'next' => '»',
'previous' => '«',
),
);
// If a custom label is provided, make this a link.
// `$label` is used to prepend the provided label, if we want to show the page title as well.
if ( isset( $attributes['label'] ) && ! empty( $attributes['label'] ) ) {
$label = "{$attributes['label']}";
$link = $label;
}
// If we want to also show the page title, make the page title a link and prepend the label.
if ( isset( $attributes['showTitle'] ) && $attributes['showTitle'] ) {
/*
* If the label link option is not enabled but there is a custom label,
* display the custom label as text before the linked title.
*/
if ( ! $attributes['linkLabel'] ) {
if ( $label ) {
$format = '' . wp_kses_post( $label ) . ' %link';
}
$link = '%title';
} elseif ( isset( $attributes['linkLabel'] ) && $attributes['linkLabel'] ) {
// If the label link option is enabled and there is a custom label, display it before the title.
if ( $label ) {
$link = '' . wp_kses_post( $label ) . ' %title';
} else {
/*
* If the label link option is enabled and there is no custom label,
* add a colon between the label and the post title.
*/
$label = 'next' === $navigation_type ? __( 'Next:', 'brandy' ) : __( 'Previous:', 'brandy' );
$link = sprintf(
'%1$s %2$s',
wp_kses_post( $label ),
'%title'
);
}
}
}
if ( 'previous' === $navigation_type && is_attachment() ) {
$post = get_post( get_post()->post_parent );
} else {
if ( ! empty( $attributes['taxonomy'] ) ) {
$post = get_adjacent_post( true, '', $attributes['taxonomy'] );
} else {
$post = get_adjacent_post( false, '' );
}
}
$post_thumbnail = get_the_post_thumbnail( $post->ID );
if ( empty( $next_post_thumbnail ) ) {
$post_thumbnail = brandy_get_post_placeholder_thumbnail();
}
// Display arrows.
if ( isset( $attributes['arrow'] ) && 'none' !== $attributes['arrow'] && isset( $arrow_map[ $attributes['arrow'] ] ) ) {
$arrow = $arrow_map[ $attributes['arrow'] ][ $navigation_type ];
$format = '%link';
$link = sprintf(
'
',
$navigation_type,
$post_thumbnail,
$arrow,
'next' === $navigation_type ? __( 'Next', 'brandy' ) : __( 'Previous', 'brandy' ),
$post->post_title
);
}
/*
* The dynamic portion of the function name, `$navigation_type`,
* Refers to the type of adjacency, 'next' or 'previous'.
*
* @see https://developer.wordpress.org/reference/functions/get_previous_post_link/
* @see https://developer.wordpress.org/reference/functions/get_next_post_link/
*/
$get_link_function = "get_{$navigation_type}_post_link";
if ( ! empty( $attributes['taxonomy'] ) ) {
$content = $get_link_function( $format, $link, true, '', $attributes['taxonomy'] );
} else {
$content = $get_link_function( $format, $link );
}
return sprintf(
'%2$s
',
$wrapper_attributes,
$content
);
}
}