<?php

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/**

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* Server-side rendering of the `core/widget-group` block.

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*

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* @package WordPress

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*/

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/**

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* Renders the 'core/widget-group' block.

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*

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* @since 5.9.0

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*

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* @global array $wp_registered_sidebars

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* @global int|string $_sidebar_being_rendered

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*

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* @param array $attributes The block attributes.

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* @param string $content The block content.

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* @param WP_Block $block The block.

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*

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* @return string Rendered block.

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*/

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

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global $wp_registered_sidebars, $_sidebar_being_rendered;

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if ( isset( $wp_registered_sidebars[ $_sidebar_being_rendered ] ) ) {

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$before_title = $wp_registered_sidebars[ $_sidebar_being_rendered ]['before_title'];

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$after_title = $wp_registered_sidebars[ $_sidebar_being_rendered ]['after_title'];

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} else {

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$before_title = '<h2 class="widget-title">';

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$after_title = '</h2>';

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}

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$html = '';

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

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$html .= $before_title . esc_html( $attributes['title'] ) . $after_title;

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}

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$html .= '<div class="wp-widget-group__inner-blocks">';

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

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

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}

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$html .= '</div>';

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return $html;

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}

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/**

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* Registers the 'core/widget-group' block.

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*

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* @since 5.9.0

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*/

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function register_block_core_widget_group() {

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register_block_type_from_metadata(

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__DIR__ . '/widget-group',

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array(

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'render_callback' => 'render_block_core_widget_group',

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)

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);

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}

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add_action( 'init', 'register_block_core_widget_group' );

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/**

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* Make a note of the sidebar being rendered before WordPress starts rendering

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* it. This lets us get to the current sidebar in

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* render_block_core_widget_group().

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*

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* @since 5.9.0

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*

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* @global int|string $_sidebar_being_rendered

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*

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* @param int|string $index Index, name, or ID of the dynamic sidebar.

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*/

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function note_sidebar_being_rendered( $index ) {

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global $_sidebar_being_rendered;

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$_sidebar_being_rendered = $index;

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}

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add_action( 'dynamic_sidebar_before', 'note_sidebar_being_rendered' );

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/**

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* Clear whatever we set in note_sidebar_being_rendered() after WordPress

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* finishes rendering a sidebar.

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*

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* @since 5.9.0

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*

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* @global int|string $_sidebar_being_rendered

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*/

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function discard_sidebar_being_rendered() {

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global $_sidebar_being_rendered;

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unset( $_sidebar_being_rendered );

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}

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add_action( 'dynamic_sidebar_after', 'discard_sidebar_being_rendered' );

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