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<?php |
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/** |
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* Tab Panel Block |
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* |
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* @package WordPress |
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*/ |
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|
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/** |
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* Render callback for core/tab-panel. |
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* |
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* @since 7.1.0 |
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* |
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* @param array $attributes Block attributes. |
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* @param string $content Block content. |
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* @param \WP_Block $block Block instance. |
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* |
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* @return string Updated HTML. |
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*/ |
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function gutenberg_block_core_tab_panel_render( array $attributes, string $content, \WP_Block $block ): string { |
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$tabs_id = $block->context['core/tabs-id'] ?? ''; |
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|
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static $tab_counters = array(); |
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|
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if ( ! isset( $tab_counters[ $tabs_id ] ) ) { |
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$tab_counters[ $tabs_id ] = 1; |
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} |
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|
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$tab_number = $tab_counters[ $tabs_id ]; |
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++$tab_counters[ $tabs_id ]; |
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|
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$tag_processor = new WP_HTML_Tag_Processor( $content ); |
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$tag_processor->next_tag( array( 'class_name' => 'wp-block-tab-panel' ) ); |
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|
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// Use the user's custom anchor if present, otherwise fall back to |
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// the generated position-based ID. |
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$tab_id = (string) $tag_processor->get_attribute( 'id' ); |
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if ( empty( $tab_id ) ) { |
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$tab_id = ! empty( $tabs_id ) |
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? $tabs_id . '-tab-' . $tab_number |
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: 'tab-' . $tab_number; |
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$tag_processor->set_attribute( 'id', $tab_id ); |
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} |
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|
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$tag_processor->set_attribute( 'aria-labelledby', 'tab__' . $tab_id ); |
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|
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/* |
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* Hiding a panel is left to the client, which is why `hidden` is bound to a |
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* state getter the server cannot resolve rather than set here: a visitor |
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* whose browser never runs the block's script is then given the content of |
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* every panel instead of none of it. `core/accordion` works the same way. |
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*/ |
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$tag_processor->set_attribute( 'data-wp-bind--hidden', 'state.isHidden' ); |
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$tag_processor->set_attribute( 'data-wp-bind--tabindex', 'state.tabIndexAttribute' ); |
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$tag_processor->set_attribute( 'data-wp-on--beforematch', 'actions.handleBeforeMatch' ); |
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|
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return (string) $tag_processor->get_updated_html(); |
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} |
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|
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/** |
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* Registers the `core/tab-panel` block on the server. |
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* |
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* @hook init |
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* |
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* @since 7.1.0 |
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*/ |
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function gutenberg_register_block_core_tab_panel() { |
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register_block_type_from_metadata( |
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__DIR__ . '/tab-panel', |
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array( |
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'render_callback' => 'gutenberg_block_core_tab_panel_render', |
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) |
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); |
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} |
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add_action( 'init', 'gutenberg_register_block_core_tab_panel', 20 ); |
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|
