Jetpack_Widget_Conditions

Complexity

Total Complexity

174

Size/Duplication

Total Lines	896
Duplicated Lines	5.47 %

Coupling/Cohesion

Components	1
Dependencies	0

Importance

Changes

0

12 Methods

Rating	Name	Duplication	Size	Complexity
A	init()	0	11	3
A	condition_minor_visible()	0	17	1
F	widget_admin_setup()	0	133	13
F	widget_conditions_admin()	0	195	19
C	widget_update()	0	81	14
C	sidebars_widgets()	0	44	13
A	template_redirect()	0	3	1
A	generate_condition_key()	0	6	2
F	filter_widget()	49	274	89
A	strcasecmp_name()	0	3	1
A	maybe_get_split_term()	0	13	4
C	migrate_post_type_rules()	0	61	14

<?php


/**
 * Hide or show widgets conditionally.
 */

class Jetpack_Widget_Conditions {
	static $passed_template_redirect = false;

The visibility should be declared for property $passed_template_redirect.

	public static function init() {
		if ( is_admin() ) {
			add_action( 'sidebar_admin_setup', array( __CLASS__, 'widget_admin_setup' ) );
			add_filter( 'widget_update_callback', array( __CLASS__, 'widget_update' ), 10, 3 );
			add_action( 'in_widget_form', array( __CLASS__, 'widget_conditions_admin' ), 10, 3 );
		} else if ( ! in_array( $GLOBALS['pagenow'], array( 'wp-login.php', 'wp-register.php' ) ) ) {
			add_filter( 'widget_display_callback', array( __CLASS__, 'filter_widget' ) );
			add_filter( 'sidebars_widgets', array( __CLASS__, 'sidebars_widgets' ) );
			add_action( 'template_redirect', array( __CLASS__, 'template_redirect' ) );
		}
	}

	public static function condition_minor_visible( $rule ) {
		/**
		 * Filters the visibility of a minor rule for the current rule.
		 *
		 * @since 4.8.0
		 *
		 * @module widget-visibility
		 *
		 * @param Boolean $is_visible if the minor rule should be visible.
		 * @param array $rule (
		 *   'major' => Array,
		 *   'minor' => Array,
		 *   'has_children' => Boolean
		 * ).
		 */
		return apply_filters( 'jetpack_widget_visibility_minor_visible', true, $rule );
	}

	public static function widget_admin_setup() {
		if( is_rtl() ) {
			wp_enqueue_style( 'widget-conditions', plugins_url( 'widget-conditions/rtl/widget-conditions-rtl.css', __FILE__ ) );
		} else {
			wp_enqueue_style( 'widget-conditions', plugins_url( 'widget-conditions/widget-conditions.css', __FILE__ ) );
		}
		wp_enqueue_style( 'widget-conditions', plugins_url( 'widget-conditions/widget-conditions.css', __FILE__ ) );
		wp_enqueue_script( 'widget-conditions', plugins_url( 'widget-conditions/widget-conditions.js', __FILE__ ), array( 'jquery', 'jquery-ui-core' ), 20140721, true );

		// Set up a single copy of all of the data that Widget Visibility needs.
		// This allows all widget conditions to reuse the same data, keeping page size down
		// and eliminating the AJAX calls we used to have to use to fetch the minor rule options.
		$widget_conditions_data = array();

		$widget_conditions_data['category'] = array();
		$widget_conditions_data['category'][] = array( '', __( 'All category pages', 'jetpack' ) );

		$categories = get_categories( array( 'number' => 1000, 'orderby' => 'count', 'order' => 'DESC' ) );
		usort( $categories, array( __CLASS__, 'strcasecmp_name' ) );

		foreach ( $categories as $category ) {
			$widget_conditions_data['category'][] = array( (string) $category->term_id, $category->name );
		}

		$widget_conditions_data['loggedin'] = array();
		$widget_conditions_data['loggedin'][] = array( 'loggedin', __( 'Logged In', 'jetpack' ) );
		$widget_conditions_data['loggedin'][] = array( 'loggedout', __( 'Logged Out', 'jetpack' ) );

		$widget_conditions_data['author'] = array();
		$widget_conditions_data['author'][] = array( '', __( 'All author pages', 'jetpack' ) );

		$authors = get_users( array( 'orderby' => 'name', 'exclude_admin' => true ) );

		foreach ( $authors as $author ) {
			$widget_conditions_data['author'][] = array( (string) $author->ID, $author->display_name );
		}

		$widget_conditions_data['role'] = array();

		global $wp_roles;

		foreach ( $wp_roles->roles as $role_key => $role ) {
			$widget_conditions_data['role'][] = array( (string) $role_key, $role['name'] );
		}

		$widget_conditions_data['tag'] = array();
		$widget_conditions_data['tag'][] = array( '', __( 'All tag pages', 'jetpack' ) );

		$tags = get_tags( array( 'number' => 1000, 'orderby' => 'count', 'order' => 'DESC' ) );
		usort( $tags, array( __CLASS__, 'strcasecmp_name' ) );

		foreach ( $tags as $tag ) {
			$widget_conditions_data['tag'][] = array( (string) $tag->term_id, $tag->name );
		}

		$widget_conditions_data['date'] = array();
		$widget_conditions_data['date'][] = array( '', __( 'All date archives', 'jetpack' ) );
		$widget_conditions_data['date'][] = array( 'day', __( 'Daily archives', 'jetpack' ) );
		$widget_conditions_data['date'][] = array( 'month', __( 'Monthly archives', 'jetpack' ) );
		$widget_conditions_data['date'][] = array( 'year', __( 'Yearly archives', 'jetpack' ) );

		$widget_conditions_data['page'] = array();
		$widget_conditions_data['page'][] = array( 'front', __( 'Front page', 'jetpack' ) );
		$widget_conditions_data['page'][] = array( 'posts', __( 'Posts page', 'jetpack' ) );
		$widget_conditions_data['page'][] = array( 'archive', __( 'Archive page', 'jetpack' ) );
		$widget_conditions_data['page'][] = array( '404', __( '404 error page', 'jetpack' ) );
		$widget_conditions_data['page'][] = array( 'search', __( 'Search results', 'jetpack' ) );

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

		$widget_conditions_post_types = array();
		$widget_conditions_post_type_archives = array();

		foreach ( $post_types as $post_type ) {
			$widget_conditions_post_types[] = array( 'post_type-' . $post_type->name, $post_type->labels->singular_name );
			$widget_conditions_post_type_archives[] = array( 'post_type_archive-' . $post_type->name, $post_type->labels->name );
		}

		$widget_conditions_data['page'][] = array( __( 'Post type:', 'jetpack' ), $widget_conditions_post_types );

		$widget_conditions_data['page'][] = array( __( 'Post type Archives:', 'jetpack' ), $widget_conditions_post_type_archives );

		$pages_dropdown = preg_replace( '/<\/?select[^>]*?>/i', '', wp_dropdown_pages( array( 'echo' => false ) ) );

		preg_match_all( '/value=.([0-9]+).[^>]*>([^<]+)</', $pages_dropdown, $page_ids_and_titles, PREG_SET_ORDER );

		$static_pages = array();

		foreach ( $page_ids_and_titles as $page_id_and_title ) {

The expression $page_ids_and_titles of type null|array<integer,array<integer,string>> is not guaranteed to be traversable. How about adding an additional type check?

			$static_pages[] = array( (string) $page_id_and_title[1], $page_id_and_title[2] );
		}

		$widget_conditions_data['page'][] = array( __( 'Static page:', 'jetpack' ), $static_pages );

		$widget_conditions_data['taxonomy'] = array();
		$widget_conditions_data['taxonomy'][] = array( '', __( 'All taxonomy pages', 'jetpack' ) );

		$taxonomies = get_taxonomies( array( '_builtin' => false ), 'objects' );
		usort( $taxonomies, array( __CLASS__, 'strcasecmp_name' ) );

		foreach ( $taxonomies as $taxonomy ) {
			$taxonomy_terms = get_terms( array( $taxonomy->name ), array( 'number' => 250, 'hide_empty' => false ) );

			$widget_conditions_terms = array();
			$widget_conditions_terms[] = array( $taxonomy->name, __( 'All pages', 'jetpack' ) );

			foreach ( $taxonomy_terms as $term ) {
				$widget_conditions_terms[] = array( $taxonomy->name . '_tax_' . $term->term_id, $term->name );
			}

			$widget_conditions_data['taxonomy'][] = array( $taxonomy->labels->name . ':', $widget_conditions_terms );
		}

		wp_localize_script( 'widget-conditions', 'widget_conditions_data', $widget_conditions_data );

		// Save a list of the IDs of all pages that have children for dynamically showing the "Include children" checkbox.
		$all_pages = get_pages();
		$all_parents = array();

		foreach ( $all_pages as $page ) {
			if ( $page->post_parent ) {
				$all_parents[ (string) $page->post_parent ] = true;
			}
		}

		$front_page_id = get_option( 'page_on_front' );

		if ( isset( $all_parents[ $front_page_id ] ) ) {
			$all_parents[ 'front' ] = true;
		}

		wp_localize_script( 'widget-conditions', 'widget_conditions_parent_pages', $all_parents );
	}

	/**
	 * Add the widget conditions to each widget in the admin.
	 *
	 * @param $widget unused.
	 * @param $return unused.
	 * @param array $instance The widget settings.
	 */
	public static function widget_conditions_admin( $widget, $return, $instance ) {
		$conditions = array();

		if ( isset( $instance['conditions'] ) )
			$conditions = $instance['conditions'];

		if ( ! isset( $conditions['action'] ) )
			$conditions['action'] = 'show';

		if ( empty( $conditions['rules'] ) )
			/**
			 * Filters initial widget visibility conditions.
			 *
			 * @since 4.8.0
			 *
			 * @module widget-visibility
			 *
			 * @param array $args Widget Visibility initial condition array.
			 */
			$conditions['rules'][] = apply_filters(
				'jetpack_widget_visibility_conditions',
				array( 'major' => '', 'minor' => '', 'has_children' => '' )
			);

		if ( empty( $conditions['match_all'] ) ) {
			$conditions['match_all'] = false;
		}

		?>
		<div
			class="
				widget-conditional
				<?php
					if (
						empty( $_POST['widget-conditions-visible'] )
						|| $_POST['widget-conditions-visible'] == '0'
					) {
						?>widget-conditional-hide<?php
					}
				?>
				<?php
					if ( ! empty( $conditions['match_all'] ) && $conditions['match_all'] ) {
						?>intersection<?php
					} else {
						?>conjunction<?php
					}
				?>
			">
			<input type="hidden" name="widget-conditions-visible" value="<?php if ( isset( $_POST['widget-conditions-visible'] ) ) { echo esc_attr( $_POST['widget-conditions-visible'] ); } else { ?>0<?php } ?>" />
			<?php if ( ! isset( $_POST['widget-conditions-visible'] ) ) { ?><a href="#" class="button display-options"><?php _e( 'Visibility', 'jetpack' ); ?></a><?php } ?>
			<div class="widget-conditional-inner">
				<div class="condition-top">
					<?php printf( _x( '%s if:', 'placeholder: dropdown menu to select widget visibility; hide if or show if', 'jetpack' ), '<select name="conditions[action]"><option value="show" ' . selected( $conditions['action'], 'show', false ) . '>' . esc_html_x( 'Show', 'Used in the "%s if:" translation for the widget visibility dropdown', 'jetpack' ) . '</option><option value="hide" ' . selected( $conditions['action'], 'hide', false ) . '>' . esc_html_x( 'Hide', 'Used in the "%s if:" translation for the widget visibility dropdown', 'jetpack' ) . '</option></select>' ); ?>
				</div><!-- .condition-top -->

				<div class="conditions">
					<?php

					foreach ( $conditions['rules'] as $rule_index => $rule ) {
						$rule = wp_parse_args( $rule, array( 'major' => '', 'minor' => '', 'has_children' => '' ) );
						?>
						<div class="condition" data-rule-major="<?php echo esc_attr( $rule['major'] ); ?>" data-rule-minor="<?php echo esc_attr( $rule['minor'] ); ?>" data-rule-has-children="<?php echo esc_attr( $rule['has_children'] ); ?>">
							<div class="selection alignleft">
								<select class="conditions-rule-major" name="conditions[rules_major][]">
									<option value="" <?php selected( "", $rule['major'] ); ?>><?php echo esc_html_x( '-- Select --', 'Used as the default option in a dropdown list', 'jetpack' ); ?></option>
									<option value="category" <?php selected( "category", $rule['major'] ); ?>><?php esc_html_e( 'Category', 'jetpack' ); ?></option>
									<option value="author" <?php selected( "author", $rule['major'] ); ?>><?php echo esc_html_x( 'Author', 'Noun, as in: "The author of this post is..."', 'jetpack' ); ?></option>

									<?php if( ! ( defined( 'IS_WPCOM' ) && IS_WPCOM ) ) { // this doesn't work on .com because of caching ?>
										<option value="loggedin" <?php selected( "loggedin", $rule['major'] ); ?>><?php echo esc_html_x( 'User', 'Noun', 'jetpack' ); ?></option>
										<option value="role" <?php selected( "role", $rule['major'] ); ?>><?php echo esc_html_x( 'Role', 'Noun, as in: "The user role of that can access this widget is..."', 'jetpack' ); ?></option>
									<?php } ?>

									<option value="tag" <?php selected( "tag", $rule['major'] ); ?>><?php echo esc_html_x( 'Tag', 'Noun, as in: "This post has one tag."', 'jetpack' ); ?></option>
									<option value="date" <?php selected( "date", $rule['major'] ); ?>><?php echo esc_html_x( 'Date', 'Noun, as in: "This page is a date archive."', 'jetpack' ); ?></option>
									<option value="page" <?php selected( "page", $rule['major'] ); ?>><?php echo esc_html_x( 'Page', 'Example: The user is looking at a page, not a post.', 'jetpack' ); ?></option>
									<?php if ( get_taxonomies( array( '_builtin' => false ) ) ) : ?>
										<option value="taxonomy" <?php selected( "taxonomy", $rule['major'] ); ?>><?php echo esc_html_x( 'Taxonomy', 'Noun, as in: "This post has one taxonomy."', 'jetpack' ); ?></option>
									<?php endif; ?>
									<?php
									/**
									 * Triggered when the output of available major rule options is over.
									 * Can be used to add new options for major rules.
									 *
									 * @since 4.8.0
									 *
									 * @module widget-visibility
									 *
									 * @param array $rule (
									 *   'major' => Array,
									 *   'minor' => Array,
									 *   'has_children' => Boolean
									 * ).
									 */
									do_action( 'jetpack_widget_visibility_condition_major', $rule );
									?>
								</select>

								<?php
								/**
								 * Filters the minor rule visibility. Return false to hide
								 * the minor rule for the current rule.
								 *
								 * @since 4.8.0
								 *
								 * @module widget-visibility
								 *
								 * @param array $rule (
								 *   'major' => Array,
								 *   'minor' => Array,
								 *   'has_children' => Boolean
								 * ).
								 */
								$show_minor_rule = self::condition_minor_visible( $rule );
								?>

								<?php if ( $show_minor_rule ) {
									_ex( 'is', 'Widget Visibility: {Rule Major [Page]} is {Rule Minor [Search results]}', 'jetpack' );
								} ?>

								<select
									class="conditions-rule-minor <?php
										echo $show_minor_rule ? '' : 'hidden'
									?>"
									name="conditions[rules_minor][]"
									<?php if ( ! $rule['major'] ) { ?>
										disabled="disabled"
									<?php } ?>>
								</select>
									<?php /* Include the currently selected value so that if the widget is saved without
									         expanding the Visibility section, we don't lose the minor part of the rule.
									         If it is opened, this list is cleared out and populated with all the values. */ ?>
									<option value="<?php echo esc_attr( $rule['minor'] ); ?>" selected="selected"></option>
								</select>

								<?php
								/**
								 * Triggered on the end of a major rule output.
								 * Can be used to add additional fields to the rule.
								 *
								 * @since 4.8.0
								 *
								 * @module widget-visibility
								 *
								 * @param array $rule (
								 *   'major' => Array,
								 *   'minor' => Array,
								 *   'has_children' => Boolean
								 * ).
								 */
								do_action( 'jetpack_widget_visibility_additional_fields', $rule );
								?>
								<span class="conditions-rule-has-children" <?php if ( ! $rule['has_children'] ) { ?> style="display: none;"<?php } ?>>
									<label>
										<input type="checkbox" name="conditions[page_children][<?php echo $rule_index; ?>]" value="has" <?php checked( $rule['has_children'], true ); ?> />
										<?php echo esc_html_x( "Include children", 'Checkbox on Widget Visibility if children of the selected page should be included in the visibility rule.', 'jetpack' ); ?>
									</label>
								</span>
							</div>

							<div class="condition-control">
								<span class="condition-conjunction">
									<?php echo esc_html_x( 'or', 'Shown between widget visibility conditions.', 'jetpack' ); ?>
								</span>
								<span class="condition-intersection">
									<?php echo esc_html_x( 'and', 'Shown between widget visibility conditions.', 'jetpack' ); ?>
								</span>
								<div class="actions alignright">
									<a href="#" class="delete-condition dashicons dashicons-no"><?php esc_html_e( 'Delete', 'jetpack' ); ?></a><a href="#" class="add-condition dashicons dashicons-plus"><?php esc_html_e( 'Add', 'jetpack' ); ?></a>
								</div>
							</div>

						</div><!-- .condition -->
						<?php
					}

					?>
				</div><!-- .conditions -->
				<div class="conditions">
					<div class="condition-top">
						<label>
							<input
								type="checkbox"
								name="conditions[match_all]"
								value="1"
								class="conditions-match-all"
								<?php checked( $conditions['match_all'], '1' ); ?> />
							<?php esc_html_e( 'Match all conditions', 'jetpack' ); ?>
						</label>
					</div><!-- .condition-top -->
				</div><!-- .conditions -->
			</div><!-- .widget-conditional-inner -->
		</div><!-- .widget-conditional -->
		<?php
	}

	/**
	 * On an AJAX update of the widget settings, process the display conditions.
	 *
	 * @param array $new_instance New settings for this instance as input by the user.
	 * @param array $old_instance Old settings for this instance.
	 * @return array Modified settings.
	 */
	public static function widget_update( $instance, $new_instance, $old_instance ) {
		if ( empty( $_POST['conditions'] ) ) {
			return $instance;
		}

		$conditions = array();
		$conditions['action'] = $_POST['conditions']['action'];
		$conditions['match_all'] = ( isset( $_POST['conditions']['match_all'] ) ? '1' : '0' );
		$conditions['rules'] = array();

		foreach ( $_POST['conditions']['rules_major'] as $index => $major_rule ) {
			if ( ! $major_rule )
				continue;

			$defaults = array(
				'major' => $major_rule,
				'minor' => isset( $_POST['conditions']['rules_minor'][$index] ) ? $_POST['conditions']['rules_minor'][$index] : '',
				'has_children' => isset( $_POST['conditions']['page_children'][$index] ) ? true : false,
			);

			/**
			 * Filters default widget visibility conditions. This filter will be passed
			 * an array of conditions for every major rule with default values set.
			 *
			 * @since 4.8.0
			 *
			 * @module widget-visibility
			 *
			 * @param array $defaults [
			 *   'major' => Array,
			 *   'minor' => Array,
			 *   'has_children' => Boolean
			 * ].
			 * @param int $index the rule index
			 */

			$conditions['rules'][] = apply_filters(
				'jetpack_widget_visibility_conditions_defaults',
				$defaults,
				$index
			);
		}

		if ( ! empty( $conditions['rules'] ) )
			$instance['conditions'] = $conditions;
		else
			unset( $instance['conditions'] );

		if (
				( isset( $instance['conditions'] ) && ! isset( $old_instance['conditions'] ) )
				||
				(
					isset( $instance['conditions'], $old_instance['conditions'] )
					&&
					serialize( $instance['conditions'] ) != serialize( $old_instance['conditions'] )
				)
			) {

			/**
			 * Fires after the widget visibility conditions are saved.
			 *
			 * @module widget-visibility
			 *
			 * @since 2.4.0
			 */
			do_action( 'widget_conditions_save' );
		}
		else if ( ! isset( $instance['conditions'] ) && isset( $old_instance['conditions'] ) ) {

			/**
			 * Fires after the widget visibility conditions are deleted.
			 *
			 * @module widget-visibility
			 *
			 * @since 2.4.0
			 */
			do_action( 'widget_conditions_delete' );
		}

		return $instance;
	}

	/**
	 * Filter the list of widgets for a sidebar so that active sidebars work as expected.
	 *
	 * @param array $widget_areas An array of widget areas and their widgets.
	 * @return array The modified $widget_area array.
	 */
	public static function sidebars_widgets( $widget_areas ) {
		$settings = array();

		foreach ( $widget_areas as $widget_area => $widgets ) {
			if ( empty( $widgets ) )
				continue;

			if ( ! is_array( $widgets ) )
				continue;

			if ( 'wp_inactive_widgets' == $widget_area )
				continue;

			foreach ( $widgets as $position => $widget_id ) {
				// Find the conditions for this widget.
				if ( preg_match( '/^(.+?)-(\d+)$/', $widget_id, $matches ) ) {
					$id_base = $matches[1];
					$widget_number = intval( $matches[2] );
				}
				else {
					$id_base = $widget_id;
					$widget_number = null;
				}

				if ( ! isset( $settings[$id_base] ) ) {
					$settings[$id_base] = get_option( 'widget_' . $id_base );
				}

				// New multi widget (WP_Widget)
				if ( ! is_null( $widget_number ) ) {
					if ( isset( $settings[$id_base][$widget_number] ) && false === self::filter_widget( $settings[$id_base][$widget_number] ) ) {
						unset( $widget_areas[$widget_area][$position] );
					}
				}

				// Old single widget
				else if ( ! empty( $settings[ $id_base ] ) && false === self::filter_widget( $settings[$id_base] ) ) {
					unset( $widget_areas[$widget_area][$position] );
				}
			}
		}

		return $widget_areas;
	}

	public static function template_redirect() {
		self::$passed_template_redirect = true;
	}

	/**
	 * Generates a condition key based on the rule array
	 *
	 * @param array $rule
	 * @return string key used to retrieve the condition.
	 */
	static function generate_condition_key( $rule ) {
		if ( isset( $rule['has_children'] ) ) {
			return $rule['major'] . ":" . $rule['minor'] . ":" . $rule['has_children'];
		}
		return $rule['major'] . ":" . $rule['minor'];
	}

	/**
	 * Determine whether the widget should be displayed based on conditions set by the user.
	 *
	 * @param array $instance The widget settings.
	 * @return array Settings to display or bool false to hide.
	 */
	public static function filter_widget( $instance ) {
		global $wp_query;

		if ( empty( $instance['conditions'] ) || empty( $instance['conditions']['rules'] ) )
			return $instance;

		// Store the results of all in-page condition lookups so that multiple widgets with
		// the same visibility conditions don't result in duplicate DB queries.
		static $condition_result_cache = array();

		$condition_result = false;

		foreach ( $instance['conditions']['rules'] as $rule ) {
			$condition_result = false;
			$condition_key = self::generate_condition_key( $rule );

			if ( isset( $condition_result_cache[ $condition_key ] ) ) {
				$condition_result = $condition_result_cache[ $condition_key ];
			}
			else {
				switch ( $rule['major'] ) {
					case 'date':
						switch ( $rule['minor'] ) {
							case '':
								$condition_result = is_date();
							break;
							case 'month':
								$condition_result = is_month();
							break;
							case 'day':
								$condition_result = is_day();
							break;
							case 'year':
								$condition_result = is_year();
							break;
						}
					break;
					case 'page':
						// Previously hardcoded post type options.
						if ( 'post' == $rule['minor'] )
							$rule['minor'] = 'post_type-post';
						else if ( ! $rule['minor'] )
							$rule['minor'] = 'post_type-page';

						switch ( $rule['minor'] ) {
							case '404':
								$condition_result = is_404();
							break;
							case 'search':
								$condition_result = is_search();
							break;
							case 'archive':
								$condition_result = is_archive();
							break;
							case 'posts':
								$condition_result = $wp_query->is_posts_page;
							break;
							case 'home':
								$condition_result = is_home();
							break;
							case 'front':
								if ( current_theme_supports( 'infinite-scroll' ) )
									$condition_result = is_front_page();
								else {
									$condition_result = is_front_page() && !is_paged();
								}
							break;
							default:
								if ( substr( $rule['minor'], 0, 10 ) == 'post_type-' ) {
									$condition_result = is_singular( substr( $rule['minor'], 10 ) );
								} elseif ( substr( $rule['minor'], 0, 18 ) == 'post_type_archive-' ) {
									$condition_result = is_post_type_archive( substr( $rule['minor'], 18 ) );
								} elseif ( $rule['minor'] == get_option( 'page_for_posts' ) ) {
									// If $rule['minor'] is a page ID which is also the posts page
									$condition_result = $wp_query->is_posts_page;
								} else {
									// $rule['minor'] is a page ID
									$condition_result = is_page() && ( $rule['minor'] == get_the_ID() );

									// Check if $rule['minor'] is parent of page ID
									if ( ! $condition_result && isset( $rule['has_children'] ) && $rule['has_children'] )
										$condition_result = wp_get_post_parent_id( get_the_ID() ) == $rule['minor'];
								}
							break;
						}
					break;
					case 'tag':
						// All tag pages.
						if( ! $rule['minor'] ) {
							if ( is_tag() ) {
								$condition_result = true;
							} else if ( is_singular() ) {
								if( in_array( 'post_tag', get_post_taxonomies() ) ) {
									$condition_result = true;
								}
							}
							break;
						}

						// All pages with the specified tag term.
						if ( is_tag( $rule['minor'] ) ) {
							$condition_result = true;
						}
						else if ( is_singular() && has_term( $rule['minor'], 'post_tag' ) ) {
							$condition_result = true;
						}
					break;
					case 'category':
						// All category pages.
						if( ! $rule['minor'] ) {
							if ( is_category() ) {
								$condition_result = true;
							}
							else if ( is_singular() ) {
								if( in_array( 'category', get_post_taxonomies() ) ) {
									$condition_result = true;
								}
							}
							break;
						}

						// All pages with the specified category term.
						if ( is_category( $rule['minor'] ) ) {
							$condition_result = true;
						}
						else if ( is_singular() && has_term( $rule['minor'], 'category' ) ) {
							$condition_result = true;
						}
					break;
					case 'loggedin':
						$condition_result = is_user_logged_in();
						if ( 'loggedin' !== $rule['minor'] ) {
							$condition_result = ! $condition_result;
						}
					break;
					case 'author':
						$post = get_post();
						if ( ! $rule['minor'] && is_author() )
							$condition_result = true;
						else if ( $rule['minor'] && is_author( $rule['minor'] ) )
							$condition_result = true;
						else if ( is_singular() && $rule['minor'] && $rule['minor'] == $post->post_author )
							$condition_result = true;
					break;
					case 'role':
						if( is_user_logged_in() ) {
							$current_user = wp_get_current_user();

							$user_roles = $current_user->roles;

							if( in_array( $rule['minor'], $user_roles ) ) {
								$condition_result = true;
							} else {
								$condition_result = false;
							}

						} else {
							$condition_result = false;
						}
					break;
					case 'post_type':
						if ( substr( $rule['minor'], 0, 10 ) == 'post_type-' ) {
							$condition_result = is_singular( substr( $rule['minor'], 10 ) );
						} elseif ( substr( $rule['minor'], 0, 18 ) == 'post_type_archive-' ) {
							$condition_result = is_post_type_archive( substr( $rule['minor'], 18 ) );
						}
					break;
					case 'taxonomy':
						// All taxonomy pages.
						if( ! $rule['minor'] ) {
							if ( is_archive() ) {
								if ( is_tag() || is_category() || is_tax() ) {
									$condition_result = true;
								}
							}
							else if ( is_singular() ) {
								$post_taxonomies = get_post_taxonomies();
								$condition_result = ! empty( $post_taxonomies );
							}
							break;
						}

						// Specified taxonomy page.
						$term = explode( '_tax_', $rule['minor'] ); // $term[0] = taxonomy name; $term[1] = term id
						if ( isset( $term[0] ) && isset( $term[1] ) ) {
							$term[1] = self::maybe_get_split_term( $term[1], $term[0] );
						}

						// All pages of the specified taxonomy.
						if ( ! isset( $term[1] ) || ! $term[1] ) {
							if ( is_tax( $term[0] ) ) {
								$condition_result = true;
							}
							else if ( is_singular() ) {
								if( in_array( $term[0], get_post_taxonomies() ) ) {
									$condition_result = true;
								}
							}
							break;
						}

						// All pages with the specified taxonomy term.
						if ( is_tax( $term[0], $term[1] ) ) {
							$condition_result = true;
						}
						else if ( is_singular() && has_term( $term[1], $term[0] ) ) {
							$condition_result = true;
						}
					break;
				}

				if ( $condition_result || self::$passed_template_redirect ) {
					// Some of the conditions will return false when checked before the template_redirect
					// action has been called, like is_page(). Only store positive lookup results, which
					// won't be false positives, before template_redirect, and everything after.
					$condition_result_cache[ $condition_key ] = $condition_result;
				}
			}

			/**
			 * Filters the condition result based on the current rule.
			 *
			 * @since 4.8.0
			 *
			 * @module widget-visibility
			 *
			 * @param boolean $result The current rule result.
			 * @param array $rule (
			 *   'major' => Array,
			 *   'minor' => Array,
			 *   'has_children' => Boolean
			 * ).
			 */
			$condition_result = apply_filters(
				'jetpack_widget_visibility_condition_result',
				$condition_result,
				$rule
			);

			if (
				isset( $instance['conditions']['match_all'] )
				&& $instance['conditions']['match_all'] == '1'
				&& ! $condition_result
			) {

				// In case the match_all flag was set we quit on first failed condition
				break;
			} elseif (
				(
					empty( $instance['conditions']['match_all'] )
					|| $instance['conditions']['match_all'] !== '1'
				)
				&& $condition_result
			) {

				// Only quit on first condition if the match_all flag was not set
				break;
			}
		}

		if (
			(
				'show' == $instance['conditions']['action']
				&& ! $condition_result
			) || (
				'hide' == $instance['conditions']['action']
				&& $condition_result
			)
		) {
			return false;
		}

		return $instance;
	}

	public static function strcasecmp_name( $a, $b ) {
		return strcasecmp( $a->name, $b->name );
	}

	public static function maybe_get_split_term( $old_term_id = '', $taxonomy = '' ) {
		$term_id = $old_term_id;

		if ( 'tag' == $taxonomy ) {
			$taxonomy = 'post_tag';
		}

		if ( function_exists( 'wp_get_split_term' ) && $new_term_id = wp_get_split_term( $old_term_id, $taxonomy ) ) {
			$term_id = $new_term_id;
		}

		return $term_id;
	}

	/**
	 * Upgrade routine to go through all widgets and move the Post Type
	 * setting to its newer location.
	 *
	 * @since 4.7.1
	 *
	 */
	static function migrate_post_type_rules() {
		global $wp_registered_widgets;

		$sidebars_widgets = get_option( 'sidebars_widgets' );

		// Going through all sidebars and through inactive and orphaned widgets
		foreach ( $sidebars_widgets as $s => $sidebar ) {
			if ( ! is_array( $sidebar ) ) {
				continue;
			}

			foreach ( $sidebar as $w => $widget ) {
				// $widget is the id of the widget
				if ( empty( $wp_registered_widgets[ $widget ] ) ) {
					continue;
				}

				$opts = $wp_registered_widgets[ $widget ];
				$instances = get_option( $opts['callback'][0]->option_name );

				// Going through each instance of the widget
				foreach( $instances as $number => $instance ) {
					if (
						! is_array( $instance ) ||
						empty( $instance['conditions'] ) ||
						empty( $instance['conditions']['rules'] )
					) {
						continue;
					}

					// Going through all visibility rules
					foreach( $instance['conditions']['rules'] as $index => $rule ) {

						// We only need Post Type rules
						if ( 'post_type' !== $rule['major'] ) {
							continue;
						}

						$rule_type = false;

						// Post type or type archive rule
						if ( 0 === strpos( $rule['minor'], 'post_type_archive' ) ) {
							$rule_type = 'post_type_archive';
						} else if ( 0 === strpos( $rule['minor'], 'post_type' ) ) {
							$rule_type = 'post_type';
						}

						if ( $rule_type ) {

The expression $rule_type of type string|false is loosely compared to true; this is ambiguous if the string can be empty. You might want to explicitly use !== false instead.

							$post_type = substr( $rule['minor'], strlen( $rule_type ) + 1 );
							$rule['minor'] = $rule_type . '-' . $post_type;
							$rule['major'] = 'page';

							$instances[ $number ]['conditions']['rules'][ $index ] = $rule;
						}
					}
				}

				update_option( $opts['callback'][0]->option_name, $instances );
			}
		}
	}

}

add_action( 'init', array( 'Jetpack_Widget_Conditions', 'init' ) );