Enable Hubbub Pro's Pinterest Image Hover button on select pages even with the tool off

filter.php

<?php
/**
 * Enable Grow's Pinterest Image Hover button only on specific page slugs.
 *
 * Replace the slugs below with your allowed pages.
 * Examples:
 * - 'about'
 * - 'contact'
 * - 'recipes/breakfast' (for nested pages)
 */

/**
 * Return true when the current front-end request should have the Pinterest hover button.
 */
function np_enable_grow_pinterest_hover_for_selected_slugs() {
	if ( is_admin() || ! is_singular() ) {
		return false;
	}

	$post = get_queried_object();

	if ( ! ( $post instanceof WP_Post ) ) {
		return false;
	}

	$allowed_slugs = array(
		'about',
		'contact',
		'pricing',
		// 'parent-page/child-page',
	);

	$allowed_slugs = array_map( 'sanitize_title', $allowed_slugs );

	$candidate_slugs = array_filter(
		array(
			$post->post_name,
			get_page_uri( $post->ID ), // supports hierarchical page paths like parent/child
		)
	);

	foreach ( $candidate_slugs as $slug ) {
		if ( in_array( sanitize_title( $slug ), $allowed_slugs, true ) ) {
			return true;
		}
	}

	return false;
}

/**
 * Pretend the Pinterest hover tool is active only on selected pages.
 */
add_filter( 'mv_grow_setting_dpsp_active_tools', function( $active_tools ) {
	if ( ! is_array( $active_tools ) ) {
		$active_tools = array();
	}

	if ( np_enable_grow_pinterest_hover_for_selected_slugs() && ! in_array( 'share_images', $active_tools, true ) ) {
		$active_tools[] = 'share_images';
	}

	return $active_tools;
} );

/**
 * Make sure Grow allows the current post type on those selected pages.
 */
add_filter( 'mv_grow_setting_dpsp_pinterest_share_images_setting', function( $settings ) {
	if ( ! np_enable_grow_pinterest_hover_for_selected_slugs() ) {
		return $settings;
	}

	if ( ! is_array( $settings ) ) {
		$settings = array();
	}

	$post = get_queried_object();

	if ( ! ( $post instanceof WP_Post ) ) {
		return $settings;
	}

	if ( empty( $settings['share_image_post_type_display'] ) || ! is_array( $settings['share_image_post_type_display'] ) ) {
		$settings['share_image_post_type_display'] = array();
	}

	if ( ! in_array( $post->post_type, $settings['share_image_post_type_display'], true ) ) {
		$settings['share_image_post_type_display'][] = $post->post_type;
	}

	return $settings;
} );