--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/widgets/class-wp-widget-tag-cloud.php Mon Oct 14 17:39:30 2019 +0200
@@ -0,0 +1,196 @@
+<?php
+/**
+ * Widget API: WP_Widget_Tag_Cloud class
+ *
+ * @package WordPress
+ * @subpackage Widgets
+ * @since 4.4.0
+ */
+
+/**
+ * Core class used to implement a Tag cloud widget.
+ *
+ * @since 2.8.0
+ *
+ * @see WP_Widget
+ */
+class WP_Widget_Tag_Cloud extends WP_Widget {
+
+ /**
+ * Sets up a new Tag Cloud widget instance.
+ *
+ * @since 2.8.0
+ */
+ public function __construct() {
+ $widget_ops = array(
+ 'description' => __( 'A cloud of your most used tags.' ),
+ 'customize_selective_refresh' => true,
+ );
+ parent::__construct( 'tag_cloud', __( 'Tag Cloud' ), $widget_ops );
+ }
+
+ /**
+ * Outputs the content for the current Tag Cloud widget instance.
+ *
+ * @since 2.8.0
+ *
+ * @param array $args Display arguments including 'before_title', 'after_title',
+ * 'before_widget', and 'after_widget'.
+ * @param array $instance Settings for the current Tag Cloud widget instance.
+ */
+ public function widget( $args, $instance ) {
+ $current_taxonomy = $this->_get_current_taxonomy( $instance );
+
+ if ( ! empty( $instance['title'] ) ) {
+ $title = $instance['title'];
+ } else {
+ if ( 'post_tag' === $current_taxonomy ) {
+ $title = __( 'Tags' );
+ } else {
+ $tax = get_taxonomy( $current_taxonomy );
+ $title = $tax->labels->name;
+ }
+ }
+
+ $show_count = ! empty( $instance['count'] );
+
+ /**
+ * Filters the taxonomy used in the Tag Cloud widget.
+ *
+ * @since 2.8.0
+ * @since 3.0.0 Added taxonomy drop-down.
+ * @since 4.9.0 Added the `$instance` parameter.
+ *
+ * @see wp_tag_cloud()
+ *
+ * @param array $args Args used for the tag cloud widget.
+ * @param array $instance Array of settings for the current widget.
+ */
+ $tag_cloud = wp_tag_cloud( apply_filters( 'widget_tag_cloud_args', array(
+ 'taxonomy' => $current_taxonomy,
+ 'echo' => false,
+ 'show_count' => $show_count,
+ ), $instance ) );
+
+ if ( empty( $tag_cloud ) ) {
+ return;
+ }
+
+ /** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
+ $title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
+
+ echo $args['before_widget'];
+ if ( $title ) {
+ echo $args['before_title'] . $title . $args['after_title'];
+ }
+
+ echo '<div class="tagcloud">';
+
+ echo $tag_cloud;
+
+ echo "</div>\n";
+ echo $args['after_widget'];
+ }
+
+ /**
+ * Handles updating settings for the current Tag Cloud widget instance.
+ *
+ * @since 2.8.0
+ *
+ * @param array $new_instance New settings for this instance as input by the user via
+ * WP_Widget::form().
+ * @param array $old_instance Old settings for this instance.
+ * @return array Settings to save or bool false to cancel saving.
+ */
+ public function update( $new_instance, $old_instance ) {
+ $instance = array();
+ $instance['title'] = sanitize_text_field( $new_instance['title'] );
+ $instance['count'] = ! empty( $new_instance['count'] ) ? 1 : 0;
+ $instance['taxonomy'] = stripslashes($new_instance['taxonomy']);
+ return $instance;
+ }
+
+ /**
+ * Outputs the Tag Cloud widget settings form.
+ *
+ * @since 2.8.0
+ *
+ * @param array $instance Current settings.
+ */
+ public function form( $instance ) {
+ $current_taxonomy = $this->_get_current_taxonomy($instance);
+ $title_id = $this->get_field_id( 'title' );
+ $count = isset( $instance['count'] ) ? (bool) $instance['count'] : false;
+ $instance['title'] = ! empty( $instance['title'] ) ? esc_attr( $instance['title'] ) : '';
+
+ echo '<p><label for="' . $title_id .'">' . __( 'Title:' ) . '</label>
+ <input type="text" class="widefat" id="' . $title_id .'" name="' . $this->get_field_name( 'title' ) .'" value="' . $instance['title'] .'" />
+ </p>';
+
+ $taxonomies = get_taxonomies( array( 'show_tagcloud' => true ), 'object' );
+ $id = $this->get_field_id( 'taxonomy' );
+ $name = $this->get_field_name( 'taxonomy' );
+ $input = '<input type="hidden" id="' . $id . '" name="' . $name . '" value="%s" />';
+
+ $count_checkbox = sprintf(
+ '<p><input type="checkbox" class="checkbox" id="%1$s" name="%2$s"%3$s /> <label for="%1$s">%4$s</label></p>',
+ $this->get_field_id( 'count' ),
+ $this->get_field_name( 'count' ),
+ checked( $count, true, false ),
+ __( 'Show tag counts' )
+ );
+
+ switch ( count( $taxonomies ) ) {
+
+ // No tag cloud supporting taxonomies found, display error message
+ case 0:
+ echo '<p>' . __( 'The tag cloud will not be displayed since there are no taxonomies that support the tag cloud widget.' ) . '</p>';
+ printf( $input, '' );
+ break;
+
+ // Just a single tag cloud supporting taxonomy found, no need to display a select.
+ case 1:
+ $keys = array_keys( $taxonomies );
+ $taxonomy = reset( $keys );
+ printf( $input, esc_attr( $taxonomy ) );
+ echo $count_checkbox;
+ break;
+
+ // More than one tag cloud supporting taxonomy found, display a select.
+ default:
+ printf(
+ '<p><label for="%1$s">%2$s</label>' .
+ '<select class="widefat" id="%1$s" name="%3$s">',
+ $id,
+ __( 'Taxonomy:' ),
+ $name
+ );
+
+ foreach ( $taxonomies as $taxonomy => $tax ) {
+ printf(
+ '<option value="%s"%s>%s</option>',
+ esc_attr( $taxonomy ),
+ selected( $taxonomy, $current_taxonomy, false ),
+ $tax->labels->name
+ );
+ }
+
+ echo '</select></p>' . $count_checkbox;
+ }
+ }
+
+ /**
+ * Retrieves the taxonomy for the current Tag cloud widget instance.
+ *
+ * @since 4.4.0
+ *
+ * @param array $instance Current settings.
+ * @return string Name of the current taxonomy if set, otherwise 'post_tag'.
+ */
+ public function _get_current_taxonomy($instance) {
+ if ( !empty($instance['taxonomy']) && taxonomy_exists($instance['taxonomy']) )
+ return $instance['taxonomy'];
+
+ return 'post_tag';
+ }
+}