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0860bb2771
Prior to about 2013, many class methods lacked even access modifiers which made the `@access` notations that much more useful. Now that we've gotten to a point where the codebase is more mature from a maintenance perspective and we can finally remove these notations. Notable exceptions to this change include standalone functions notated as private as well as some classes still considered to represent "private" APIs. See #41452. Built from https://develop.svn.wordpress.org/trunk@41162 git-svn-id: http://core.svn.wordpress.org/trunk@41002 1a063a9b-81f0-0310-95a4-ce76da25c4cd
125 lines
3.6 KiB
PHP
125 lines
3.6 KiB
PHP
<?php
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/**
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* Widget API: WP_Widget_RSS class
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*
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* @package WordPress
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* @subpackage Widgets
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* @since 4.4.0
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*/
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/**
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* Core class used to implement a RSS widget.
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*
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* @since 2.8.0
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*
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* @see WP_Widget
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*/
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class WP_Widget_RSS extends WP_Widget {
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/**
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* Sets up a new RSS widget instance.
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*
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* @since 2.8.0
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*/
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public function __construct() {
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$widget_ops = array(
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'description' => __( 'Entries from any RSS or Atom feed.' ),
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'customize_selective_refresh' => true,
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);
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$control_ops = array( 'width' => 400, 'height' => 200 );
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parent::__construct( 'rss', __( 'RSS' ), $widget_ops, $control_ops );
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}
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/**
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* Outputs the content for the current RSS widget instance.
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*
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* @since 2.8.0
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*
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* @param array $args Display arguments including 'before_title', 'after_title',
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* 'before_widget', and 'after_widget'.
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* @param array $instance Settings for the current RSS widget instance.
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*/
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public function widget( $args, $instance ) {
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if ( isset($instance['error']) && $instance['error'] )
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return;
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$url = ! empty( $instance['url'] ) ? $instance['url'] : '';
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while ( stristr($url, 'http') != $url )
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$url = substr($url, 1);
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if ( empty($url) )
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return;
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// self-url destruction sequence
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if ( in_array( untrailingslashit( $url ), array( site_url(), home_url() ) ) )
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return;
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$rss = fetch_feed($url);
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$title = $instance['title'];
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$desc = '';
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$link = '';
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if ( ! is_wp_error($rss) ) {
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$desc = esc_attr(strip_tags(@html_entity_decode($rss->get_description(), ENT_QUOTES, get_option('blog_charset'))));
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if ( empty($title) )
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$title = strip_tags( $rss->get_title() );
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$link = strip_tags( $rss->get_permalink() );
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while ( stristr($link, 'http') != $link )
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$link = substr($link, 1);
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}
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if ( empty($title) )
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$title = empty($desc) ? __('Unknown Feed') : $desc;
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/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
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$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
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$url = strip_tags( $url );
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$icon = includes_url( 'images/rss.png' );
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if ( $title )
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$title = '<a class="rsswidget" href="' . esc_url( $url ) . '"><img class="rss-widget-icon" style="border:0" width="14" height="14" src="' . esc_url( $icon ) . '" alt="RSS" /></a> <a class="rsswidget" href="' . esc_url( $link ) . '">'. esc_html( $title ) . '</a>';
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echo $args['before_widget'];
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if ( $title ) {
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echo $args['before_title'] . $title . $args['after_title'];
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}
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wp_widget_rss_output( $rss, $instance );
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echo $args['after_widget'];
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if ( ! is_wp_error($rss) )
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$rss->__destruct();
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unset($rss);
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}
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/**
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* Handles updating settings for the current RSS widget instance.
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*
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* @since 2.8.0
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*
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* @param array $new_instance New settings for this instance as input by the user via
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* WP_Widget::form().
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* @param array $old_instance Old settings for this instance.
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* @return array Updated settings to save.
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*/
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public function update( $new_instance, $old_instance ) {
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$testurl = ( isset( $new_instance['url'] ) && ( !isset( $old_instance['url'] ) || ( $new_instance['url'] != $old_instance['url'] ) ) );
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return wp_widget_rss_process( $new_instance, $testurl );
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}
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/**
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* Outputs the settings form for the RSS widget.
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*
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* @since 2.8.0
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*
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* @param array $instance Current settings.
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*/
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public function form( $instance ) {
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if ( empty( $instance ) ) {
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$instance = array( 'title' => '', 'url' => '', 'items' => 10, 'error' => false, 'show_summary' => 0, 'show_author' => 0, 'show_date' => 0 );
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}
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$instance['number'] = $this->number;
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wp_widget_rss_form( $instance );
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}
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}
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