<?php

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/**

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* Server-side registering and rendering of the `core/navigation-link` block.

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*

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* @package WordPress

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*/

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/**

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* Build an array with CSS classes and inline styles defining the colors

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* which will be applied to the navigation markup in the front-end.

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*

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* @since 5.9.0

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*

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* @param array $context Navigation block context.

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* @param array $attributes Block attributes.

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* @param bool $is_sub_menu Whether the link is part of a sub-menu. Default false.

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* @return array Colors CSS classes and inline styles.

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*/

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function block_core_navigation_link_build_css_colors( $context, $attributes, $is_sub_menu = false ) {

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$colors = array(

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'css_classes' => array(),

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'inline_styles' => '',

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);

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// Text color.

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$named_text_color = null;

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$custom_text_color = null;

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if ( $is_sub_menu && array_key_exists( 'customOverlayTextColor', $context ) ) {

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$custom_text_color = $context['customOverlayTextColor'];

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} elseif ( $is_sub_menu && array_key_exists( 'overlayTextColor', $context ) ) {

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$named_text_color = $context['overlayTextColor'];

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} elseif ( array_key_exists( 'customTextColor', $context ) ) {

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$custom_text_color = $context['customTextColor'];

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} elseif ( array_key_exists( 'textColor', $context ) ) {

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$named_text_color = $context['textColor'];

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} elseif ( isset( $context['style']['color']['text'] ) ) {

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$custom_text_color = $context['style']['color']['text'];

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}

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// If has text color.

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if ( ! is_null( $named_text_color ) ) {

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// Add the color class.

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array_push( $colors['css_classes'], 'has-text-color', sprintf( 'has-%s-color', $named_text_color ) );

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} elseif ( ! is_null( $custom_text_color ) ) {

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// Add the custom color inline style.

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$colors['css_classes'][] = 'has-text-color';

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$colors['inline_styles'] .= sprintf( 'color: %s;', $custom_text_color );

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}

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// Background color.

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$named_background_color = null;

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$custom_background_color = null;

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if ( $is_sub_menu && array_key_exists( 'customOverlayBackgroundColor', $context ) ) {

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$custom_background_color = $context['customOverlayBackgroundColor'];

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} elseif ( $is_sub_menu && array_key_exists( 'overlayBackgroundColor', $context ) ) {

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$named_background_color = $context['overlayBackgroundColor'];

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} elseif ( array_key_exists( 'customBackgroundColor', $context ) ) {

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$custom_background_color = $context['customBackgroundColor'];

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} elseif ( array_key_exists( 'backgroundColor', $context ) ) {

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$named_background_color = $context['backgroundColor'];

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} elseif ( isset( $context['style']['color']['background'] ) ) {

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$custom_background_color = $context['style']['color']['background'];

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}

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// If has background color.

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if ( ! is_null( $named_background_color ) ) {

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// Add the background-color class.

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array_push( $colors['css_classes'], 'has-background', sprintf( 'has-%s-background-color', $named_background_color ) );

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} elseif ( ! is_null( $custom_background_color ) ) {

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// Add the custom background-color inline style.

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$colors['css_classes'][] = 'has-background';

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$colors['inline_styles'] .= sprintf( 'background-color: %s;', $custom_background_color );

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}

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return $colors;

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}

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/**

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* Build an array with CSS classes and inline styles defining the font sizes

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* which will be applied to the navigation markup in the front-end.

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*

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* @since 5.9.0

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*

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* @param array $context Navigation block context.

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* @return array Font size CSS classes and inline styles.

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*/

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function block_core_navigation_link_build_css_font_sizes( $context ) {

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// CSS classes.

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$font_sizes = array(

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'css_classes' => array(),

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'inline_styles' => '',

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);

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$has_named_font_size = array_key_exists( 'fontSize', $context );

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$has_custom_font_size = isset( $context['style']['typography']['fontSize'] );

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if ( $has_named_font_size ) {

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// Add the font size class.

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$font_sizes['css_classes'][] = sprintf( 'has-%s-font-size', $context['fontSize'] );

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} elseif ( $has_custom_font_size ) {

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// Add the custom font size inline style.

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$font_sizes['inline_styles'] = sprintf(

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'font-size: %s;',

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wp_get_typography_font_size_value(

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array(

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'size' => $context['style']['typography']['fontSize'],

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)

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)

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);

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}

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return $font_sizes;

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}

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/**

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* Returns the top-level submenu SVG chevron icon.

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*

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* @since 5.9.0

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*

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* @return string

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*/

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function block_core_navigation_link_render_submenu_icon() {

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return '<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12" fill="none" aria-hidden="true" focusable="false"><path d="M1.50002 4L6.00002 8L10.5 4" stroke-width="1.5"></path></svg>';

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}

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/**

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* Decodes a url if it's encoded, returning the same url if not.

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*

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* @since 6.2.0

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*

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* @param string $url The url to decode.

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*

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* @return string $url Returns the decoded url.

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*/

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function block_core_navigation_link_maybe_urldecode( $url ) {

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$is_url_encoded = false;

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$query = parse_url( $url, PHP_URL_QUERY );

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$query_params = wp_parse_args( $query );

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foreach ( $query_params as $query_param ) {

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$can_query_param_be_encoded = is_string( $query_param ) && ! empty( $query_param );

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if ( ! $can_query_param_be_encoded ) {

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continue;

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}

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if ( rawurldecode( $query_param ) !== $query_param ) {

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$is_url_encoded = true;

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break;

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}

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}

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if ( $is_url_encoded ) {

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return rawurldecode( $url );

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}

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return $url;

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}

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/**

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* Renders the `core/navigation-link` block.

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*

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* @since 5.9.0

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*

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* @param array $attributes The block attributes.

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* @param string $content The saved content.

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* @param WP_Block $block The parsed block.

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*

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* @return string Returns the post content with the legacy widget added.

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*/

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function render_block_core_navigation_link( $attributes, $content, $block ) {

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$navigation_link_has_id = isset( $attributes['id'] ) && is_numeric( $attributes['id'] );

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$is_post_type = isset( $attributes['kind'] ) && 'post-type' === $attributes['kind'];

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$is_post_type = $is_post_type || isset( $attributes['type'] ) && ( 'post' === $attributes['type'] || 'page' === $attributes['type'] );

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// Don't render the block's subtree if it is a draft or if the ID does not exist.

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if ( $is_post_type && $navigation_link_has_id ) {

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$post = get_post( $attributes['id'] );

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/**

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* Filter allowed post_status for navigation link block to render.

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*

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* @since 6.8.0

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*

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* @param array $post_status

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* @param array $attributes

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* @param WP_Block $block

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*/

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$allowed_post_status = (array) apply_filters(

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'render_block_core_navigation_link_allowed_post_status',

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array( 'publish' ),

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$attributes,

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$block

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);

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if ( ! $post || ! in_array( $post->post_status, $allowed_post_status, true ) ) {

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return '';

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}

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}

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// Don't render the block's subtree if it has no label.

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if ( empty( $attributes['label'] ) ) {

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return '';

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}

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$font_sizes = block_core_navigation_link_build_css_font_sizes( $block->context );

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$classes = array_merge(

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$font_sizes['css_classes']

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);

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$style_attribute = $font_sizes['inline_styles'];

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$css_classes = trim( implode( ' ', $classes ) );

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$has_submenu = count( $block->inner_blocks ) > 0;

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$kind = empty( $attributes['kind'] ) ? 'post_type' : str_replace( '-', '_', $attributes['kind'] );

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$is_active = ! empty( $attributes['id'] ) && get_queried_object_id() === (int) $attributes['id'] && ! empty( get_queried_object()->$kind );

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if ( is_post_type_archive() && ! empty( $attributes['url'] ) ) {

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$queried_archive_link = get_post_type_archive_link( get_queried_object()->name );

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if ( $attributes['url'] === $queried_archive_link ) {

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$is_active = true;

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}

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}

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$wrapper_attributes = get_block_wrapper_attributes(

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array(

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'class' => $css_classes . ' wp-block-navigation-item' . ( $has_submenu ? ' has-child' : '' ) .

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( $is_active ? ' current-menu-item' : '' ),

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'style' => $style_attribute,

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)

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);

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$html = '<li ' . $wrapper_attributes . '>' .

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'<a class="wp-block-navigation-item__content" ';

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// Start appending HTML attributes to anchor tag.

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if ( isset( $attributes['url'] ) ) {

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$html .= ' href="' . esc_url( block_core_navigation_link_maybe_urldecode( $attributes['url'] ) ) . '"';

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}

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if ( $is_active ) {

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$html .= ' aria-current="page"';

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}

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if ( isset( $attributes['opensInNewTab'] ) && true === $attributes['opensInNewTab'] ) {

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$html .= ' target="_blank" ';

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}

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if ( isset( $attributes['rel'] ) ) {

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$html .= ' rel="' . esc_attr( $attributes['rel'] ) . '"';

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} elseif ( isset( $attributes['nofollow'] ) && $attributes['nofollow'] ) {

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$html .= ' rel="nofollow"';

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}

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if ( isset( $attributes['title'] ) ) {

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$html .= ' title="' . esc_attr( $attributes['title'] ) . '"';

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}

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// End appending HTML attributes to anchor tag.

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// Start anchor tag content.

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$html .= '>' .

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// Wrap title with span to isolate it from submenu icon.

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'<span class="wp-block-navigation-item__label">';

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if ( isset( $attributes['label'] ) ) {

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$html .= wp_kses_post( $attributes['label'] );

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}

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$html .= '</span>';

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// Add description if available.

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

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$html .= '<span class="wp-block-navigation-item__description">';

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$html .= wp_kses_post( $attributes['description'] );

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$html .= '</span>';

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}

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$html .= '</a>';

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// End anchor tag content.

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if ( isset( $block->context['showSubmenuIcon'] ) && $block->context['showSubmenuIcon'] && $has_submenu ) {

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// The submenu icon can be hidden by a CSS rule on the Navigation Block.

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$html .= '<span class="wp-block-navigation__submenu-icon">' . block_core_navigation_link_render_submenu_icon() . '</span>';

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}

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if ( $has_submenu ) {

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$inner_blocks_html = '';

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foreach ( $block->inner_blocks as $inner_block ) {

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$inner_blocks_html .= $inner_block->render();

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}

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$html .= sprintf(

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'<ul class="wp-block-navigation__submenu-container">%s</ul>',

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$inner_blocks_html

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);

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}

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$html .= '</li>';

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return $html;

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}

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/**

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* Returns a navigation link variation

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*

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* @since 5.9.0

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*

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* @param WP_Taxonomy|WP_Post_Type $entity post type or taxonomy entity.

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* @param string $kind string of value 'taxonomy' or 'post-type'.

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*

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* @return array

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*/

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function build_variation_for_navigation_link( $entity, $kind ) {

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$title = '';

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$description = '';

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if ( property_exists( $entity->labels, 'item_link' ) ) {

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$title = $entity->labels->item_link;

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}

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if ( property_exists( $entity->labels, 'item_link_description' ) ) {

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$description = $entity->labels->item_link_description;

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}

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$variation = array(

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'name' => $entity->name,

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'title' => $title,

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'description' => $description,

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'attributes' => array(

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'type' => $entity->name,

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'kind' => $kind,

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),

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);

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// Tweak some value for the variations.

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$variation_overrides = array(

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'post_tag' => array(

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'name' => 'tag',

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'attributes' => array(

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'type' => 'tag',

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'kind' => $kind,

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),

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),

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'post_format' => array(

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// The item_link and item_link_description for post formats is the

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// same as for tags, so need to be overridden.

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'title' => __( 'Post Format Link' ),

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'description' => __( 'A link to a post format' ),

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'attributes' => array(

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'type' => 'post_format',

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'kind' => $kind,

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),

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),

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);

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if ( array_key_exists( $entity->name, $variation_overrides ) ) {

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$variation = array_merge(

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$variation,

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$variation_overrides[ $entity->name ]

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);

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}

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return $variation;

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}

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[361] Fix | Delete

/**

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* Filters the registered variations for a block type.

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* Returns the dynamically built variations for all post-types and taxonomies.

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*

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* @since 6.5.0

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*

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* @param array $variations Array of registered variations for a block type.

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* @param WP_Block_Type $block_type The full block type object.

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*/

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function block_core_navigation_link_filter_variations( $variations, $block_type ) {

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if ( 'core/navigation-link' !== $block_type->name ) {

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return $variations;

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}

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$generated_variations = block_core_navigation_link_build_variations();

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return array_merge( $variations, $generated_variations );

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}

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[379] Fix | Delete

/**

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* Returns an array of variations for the navigation link block.

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*

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* @since 6.5.0

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*

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* @return array

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*/

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function block_core_navigation_link_build_variations() {

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$post_types = get_post_types( array( 'show_in_nav_menus' => true ), 'objects' );

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$taxonomies = get_taxonomies( array( 'show_in_nav_menus' => true ), 'objects' );

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/*

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* Use two separate arrays as a way to order the variations in the UI.

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* Known variations (like Post Link and Page Link) are added to the

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* `built_ins` array. Variations for custom post types and taxonomies are

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* added to the `variations` array and will always appear after `built-ins.

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*/

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$built_ins = array();

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$variations = array();

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if ( $post_types ) {

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foreach ( $post_types as $post_type ) {

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$variation = build_variation_for_navigation_link( $post_type, 'post-type' );

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if ( $post_type->_builtin ) {

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$built_ins[] = $variation;

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} else {

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$variations[] = $variation;

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}

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}

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}

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if ( $taxonomies ) {

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foreach ( $taxonomies as $taxonomy ) {

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$variation = build_variation_for_navigation_link( $taxonomy, 'taxonomy' );

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if ( $taxonomy->_builtin ) {

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$built_ins[] = $variation;

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} else {

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$variations[] = $variation;

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}

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}

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}

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return array_merge( $built_ins, $variations );

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}

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[423] Fix | Delete

/**

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* Registers the navigation link block.

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*

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* @since 5.9.0

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*

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* @uses render_block_core_navigation_link()

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* @throws WP_Error An WP_Error exception parsing the block definition.

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*/

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function register_block_core_navigation_link() {

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register_block_type_from_metadata(

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__DIR__ . '/navigation-link',

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array(

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'render_callback' => 'render_block_core_navigation_link',

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)

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);

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}

[439] Fix | Delete

add_action( 'init', 'register_block_core_navigation_link' );

[440] Fix | Delete

/**

[441] Fix | Delete

* Creates all variations for post types / taxonomies dynamically (= each time when variations are requested).

[442] Fix | Delete

* Do not use variation_callback, to also account for unregistering post types/taxonomies later on.

[443] Fix | Delete

*/

[444] Fix | Delete

add_action( 'get_block_type_variations', 'block_core_navigation_link_filter_variations', 10, 2 );

[445] Fix | Delete

[446] Fix | Delete