145 lines
3.8 KiB
PHP
145 lines
3.8 KiB
PHP
<?php
|
|
/**
|
|
* Widget API: WP_Widget_RSS class
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Widgets
|
|
* @since 4.4.0
|
|
*/
|
|
|
|
/**
|
|
* Core class used to implement a RSS widget.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @see WP_Widget
|
|
*/
|
|
class WP_Widget_RSS extends WP_Widget {
|
|
|
|
/**
|
|
* Sets up a new RSS widget instance.
|
|
*
|
|
* @since 2.8.0
|
|
*/
|
|
public function __construct() {
|
|
$widget_ops = array(
|
|
'description' => __( 'Entries from any RSS or Atom feed.' ),
|
|
'customize_selective_refresh' => true,
|
|
);
|
|
$control_ops = array(
|
|
'width' => 400,
|
|
'height' => 200,
|
|
);
|
|
parent::__construct( 'rss', __( 'RSS' ), $widget_ops, $control_ops );
|
|
}
|
|
|
|
/**
|
|
* Outputs the content for the current RSS 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 RSS widget instance.
|
|
*/
|
|
public function widget( $args, $instance ) {
|
|
if ( isset( $instance['error'] ) && $instance['error'] ) {
|
|
return;
|
|
}
|
|
|
|
$url = ! empty( $instance['url'] ) ? $instance['url'] : '';
|
|
while ( stristr( $url, 'http' ) != $url ) {
|
|
$url = substr( $url, 1 );
|
|
}
|
|
|
|
if ( empty( $url ) ) {
|
|
return;
|
|
}
|
|
|
|
// self-url destruction sequence
|
|
if ( in_array( untrailingslashit( $url ), array( site_url(), home_url() ) ) ) {
|
|
return;
|
|
}
|
|
|
|
$rss = fetch_feed( $url );
|
|
$title = $instance['title'];
|
|
$desc = '';
|
|
$link = '';
|
|
|
|
if ( ! is_wp_error( $rss ) ) {
|
|
$desc = esc_attr( strip_tags( @html_entity_decode( $rss->get_description(), ENT_QUOTES, get_option( 'blog_charset' ) ) ) );
|
|
if ( empty( $title ) ) {
|
|
$title = strip_tags( $rss->get_title() );
|
|
}
|
|
$link = strip_tags( $rss->get_permalink() );
|
|
while ( stristr( $link, 'http' ) != $link ) {
|
|
$link = substr( $link, 1 );
|
|
}
|
|
}
|
|
|
|
if ( empty( $title ) ) {
|
|
$title = ! empty( $desc ) ? $desc : __( 'Unknown Feed' );
|
|
}
|
|
|
|
/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
|
|
$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
|
|
|
|
$url = strip_tags( $url );
|
|
$icon = includes_url( 'images/rss.png' );
|
|
if ( $title ) {
|
|
$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>';
|
|
}
|
|
|
|
echo $args['before_widget'];
|
|
if ( $title ) {
|
|
echo $args['before_title'] . $title . $args['after_title'];
|
|
}
|
|
wp_widget_rss_output( $rss, $instance );
|
|
echo $args['after_widget'];
|
|
|
|
if ( ! is_wp_error( $rss ) ) {
|
|
$rss->__destruct();
|
|
}
|
|
unset( $rss );
|
|
}
|
|
|
|
/**
|
|
* Handles updating settings for the current RSS 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 Updated settings to save.
|
|
*/
|
|
public function update( $new_instance, $old_instance ) {
|
|
$testurl = ( isset( $new_instance['url'] ) && ( ! isset( $old_instance['url'] ) || ( $new_instance['url'] != $old_instance['url'] ) ) );
|
|
return wp_widget_rss_process( $new_instance, $testurl );
|
|
}
|
|
|
|
/**
|
|
* Outputs the settings form for the RSS widget.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array $instance Current settings.
|
|
*/
|
|
public function form( $instance ) {
|
|
if ( empty( $instance ) ) {
|
|
$instance = array(
|
|
'title' => '',
|
|
'url' => '',
|
|
'items' => 10,
|
|
'error' => false,
|
|
'show_summary' => 0,
|
|
'show_author' => 0,
|
|
'show_date' => 0,
|
|
);
|
|
}
|
|
$instance['number'] = $this->number;
|
|
|
|
wp_widget_rss_form( $instance );
|
|
}
|
|
}
|