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| 1 | +<?php |
| 2 | +/** |
| 3 | + * Term Data source for Block Bindings. |
| 4 | + * |
| 5 | + * @since 6.9.0 |
| 6 | + * @package WordPress |
| 7 | + * @subpackage Block Bindings |
| 8 | + */ |
| 9 | + |
| 10 | +/** |
| 11 | + * Gets value for Term Data source. |
| 12 | + * |
| 13 | + * @since 6.9.0 |
| 14 | + * @access private |
| 15 | + * |
| 16 | + * @param array $source_args Array containing source arguments used to look up the override value. |
| 17 | + * Example: array( "key" => "name" ). |
| 18 | + * @param WP_Block $block_instance The block instance. |
| 19 | + * @return mixed The value computed for the source. |
| 20 | + */ |
| 21 | +function _block_bindings_term_data_get_value( array $source_args, $block_instance ) { |
| 22 | + if ( empty( $source_args['key'] ) ) { |
| 23 | + return null; |
| 24 | + } |
| 25 | + |
| 26 | + /* |
| 27 | + * BACKWARDS COMPATIBILITY: Hardcoded exception for navigation blocks. |
| 28 | + * Required for WordPress 6.9+ navigation blocks. DO NOT REMOVE. |
| 29 | + */ |
| 30 | + $block_name = $block_instance->name ?? ''; |
| 31 | + $is_navigation_block = in_array( |
| 32 | + $block_name, |
| 33 | + array( 'core/navigation-link', 'core/navigation-submenu' ), |
| 34 | + true |
| 35 | + ); |
| 36 | + |
| 37 | + if ( $is_navigation_block ) { |
| 38 | + // Navigation blocks: read from block attributes. |
| 39 | + $term_id = $block_instance->attributes['id'] ?? null; |
| 40 | + $type = $block_instance->attributes['type'] ?? ''; |
| 41 | + // Map UI shorthand to taxonomy slug when using attributes. |
| 42 | + $taxonomy = ( 'tag' === $type ) ? 'post_tag' : $type; |
| 43 | + } else { |
| 44 | + // All other blocks: use context |
| 45 | + $term_id = $block_instance->context['termId'] ?? null; |
| 46 | + $taxonomy = $block_instance->context['taxonomy'] ?? ''; |
| 47 | + } |
| 48 | + |
| 49 | + // If we don't have required identifiers, bail early. |
| 50 | + if ( empty( $term_id ) || empty( $taxonomy ) ) { |
| 51 | + return null; |
| 52 | + } |
| 53 | + |
| 54 | + // Get the term data. |
| 55 | + $term = get_term( $term_id, $taxonomy ); |
| 56 | + if ( is_wp_error( $term ) || ! $term ) { |
| 57 | + return null; |
| 58 | + } |
| 59 | + |
| 60 | + // Check if taxonomy exists and is publicly queryable. |
| 61 | + $taxonomy_object = get_taxonomy( $taxonomy ); |
| 62 | + if ( ! $taxonomy_object || ! $taxonomy_object->publicly_queryable ) { |
| 63 | + if ( ! current_user_can( 'read' ) ) { |
| 64 | + return null; |
| 65 | + } |
| 66 | + } |
| 67 | + |
| 68 | + switch ( $source_args['key'] ) { |
| 69 | + case 'id': |
| 70 | + return esc_html( (string) $term_id ); |
| 71 | + |
| 72 | + case 'name': |
| 73 | + return esc_html( $term->name ); |
| 74 | + |
| 75 | + case 'link': |
| 76 | + // Only taxonomy entities are supported by Term Data. |
| 77 | + $term_link = get_term_link( $term ); |
| 78 | + return is_wp_error( $term_link ) ? null : esc_url( $term_link ); |
| 79 | + |
| 80 | + case 'slug': |
| 81 | + return esc_html( $term->slug ); |
| 82 | + |
| 83 | + case 'description': |
| 84 | + return wp_kses_post( $term->description ); |
| 85 | + |
| 86 | + case 'parent': |
| 87 | + return esc_html( (string) $term->parent ); |
| 88 | + |
| 89 | + case 'count': |
| 90 | + return esc_html( (string) $term->count ); |
| 91 | + |
| 92 | + default: |
| 93 | + return null; |
| 94 | + } |
| 95 | +} |
| 96 | + |
| 97 | +/** |
| 98 | + * Registers Term Data source in the block bindings registry. |
| 99 | + * |
| 100 | + * @since 6.9.0 |
| 101 | + * @access private |
| 102 | + */ |
| 103 | +function _register_block_bindings_term_data_source() { |
| 104 | + if ( get_block_bindings_source( 'core/term-data' ) ) { |
| 105 | + // The source is already registered. |
| 106 | + return; |
| 107 | + } |
| 108 | + |
| 109 | + register_block_bindings_source( |
| 110 | + 'core/term-data', |
| 111 | + array( |
| 112 | + 'label' => _x( 'Term Data', 'block bindings source' ), |
| 113 | + 'get_value_callback' => '_block_bindings_term_data_get_value', |
| 114 | + 'uses_context' => array( 'termId', 'taxonomy' ), |
| 115 | + ) |
| 116 | + ); |
| 117 | +} |
| 118 | + |
| 119 | +add_action( 'init', '_register_block_bindings_term_data_source' ); |
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