mirror of
https://github.com/WordPress/WordPress.git
synced 2024-08-25 15:22:53 +02:00
Role="navigation" was required for assistive technology to recognize HTML5 element's native ARIA roles while HTML5 and ARIA were being introduced. With the deprecation of IE11, the role attribute is only required when mapping elements that don't have native role. Props costdev, mukesh27. Fixes #54054. Built from https://develop.svn.wordpress.org/trunk@51967 git-svn-id: http://core.svn.wordpress.org/trunk@51556 1a063a9b-81f0-0310-95a4-ce76da25c4cd
165 lines
4.4 KiB
PHP
165 lines
4.4 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,
|
|
'show_instance_in_rest' => 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 ( ! empty( $url ) && 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() ), true ) ) {
|
|
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 ( ! empty( $link ) && 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'];
|
|
}
|
|
|
|
$format = current_theme_supports( 'html5', 'navigation-widgets' ) ? 'html5' : 'xhtml';
|
|
|
|
/** This filter is documented in wp-includes/widgets/class-wp-nav-menu-widget.php */
|
|
$format = apply_filters( 'navigation_widgets_format', $format );
|
|
|
|
if ( 'html5' === $format ) {
|
|
// The title may be filtered: Strip out HTML and make sure the aria-label is never empty.
|
|
$title = trim( strip_tags( $title ) );
|
|
$aria_label = $title ? $title : __( 'RSS Feed' );
|
|
echo '<nav aria-label="' . esc_attr( $aria_label ) . '">';
|
|
}
|
|
|
|
wp_widget_rss_output( $rss, $instance );
|
|
|
|
if ( 'html5' === $format ) {
|
|
echo '</nav>';
|
|
}
|
|
|
|
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 );
|
|
}
|
|
}
|