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<?php

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/**

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* Widget API: WP_Widget_Recent_Posts class

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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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* Core class used to implement a Recent Posts widget.

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* @since 2.8.0

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* @see WP_Widget

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class WP_Widget_Recent_Posts extends WP_Widget {

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/**

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* Sets up a new Recent Posts widget instance.

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* @since 2.8.0

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public function __construct() {

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$widget_ops = array(

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'classname' => 'widget_recent_entries',

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'description' => __( 'Your site’s most recent Posts.' ),

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'customize_selective_refresh' => true,

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'show_instance_in_rest' => true,

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);

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parent::__construct( 'recent-posts', __( 'Recent Posts' ), $widget_ops );

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$this->alt_option_name = 'widget_recent_entries';

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}

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/**

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* Outputs the content for the current Recent Posts widget instance.

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* @since 2.8.0

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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 Recent Posts widget instance.

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public function widget( $args, $instance ) {

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if ( ! isset( $args['widget_id'] ) ) {

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$args['widget_id'] = $this->id;

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}

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$default_title = __( 'Recent Posts' );

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$title = ( ! empty( $instance['title'] ) ) ? $instance['title'] : $default_title;

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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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$number = ( ! empty( $instance['number'] ) ) ? absint( $instance['number'] ) : 5;

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if ( ! $number ) {

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$number = 5;

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}

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$show_date = isset( $instance['show_date'] ) ? $instance['show_date'] : false;

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$r = new WP_Query(

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/**

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* Filters the arguments for the Recent Posts widget.

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* @since 3.4.0

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* @since 4.9.0 Added the `$instance` parameter.

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* @see WP_Query::get_posts()

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* @param array $args An array of arguments used to retrieve the recent posts.

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* @param array $instance Array of settings for the current widget.

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apply_filters(

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'widget_posts_args',

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array(

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'posts_per_page' => $number,

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'no_found_rows' => true,

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'post_status' => 'publish',

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'ignore_sticky_posts' => true,

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$instance

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)

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);

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if ( ! $r->have_posts() ) {

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return;

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}

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<?php echo $args['before_widget']; ?>

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<?php

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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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$format = current_theme_supports( 'html5', 'navigation-widgets' ) ? 'html5' : 'xhtml';

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/** This filter is documented in wp-includes/widgets/class-wp-nav-menu-widget.php */

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$format = apply_filters( 'navigation_widgets_format', $format );

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if ( 'html5' === $format ) {

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// The title may be filtered: Strip out HTML and make sure the aria-label is never empty.

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$title = trim( strip_tags( $title ) );

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$aria_label = $title ? $title : $default_title;

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echo '<nav aria-label="' . esc_attr( $aria_label ) . '">';

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}

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<ul>

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<?php foreach ( $r->posts as $recent_post ) : ?>

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<?php

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$post_title = get_the_title( $recent_post->ID );

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$title = ( ! empty( $post_title ) ) ? $post_title : __( '(no title)' );

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$aria_current = '';

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if ( get_queried_object_id() === $recent_post->ID ) {

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$aria_current = ' aria-current="page"';

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}

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<li>

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<?php if ( $show_date ) : ?>

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<?php endif; ?>

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</li>

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<?php endforeach; ?>

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</ul>

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<?php

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if ( 'html5' === $format ) {

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echo '</nav>';

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}

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echo $args['after_widget'];

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}

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/**

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* Handles updating the settings for the current Recent Posts widget instance.

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* @since 2.8.0

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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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public function update( $new_instance, $old_instance ) {

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$instance = $old_instance;

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$instance['title'] = sanitize_text_field( $new_instance['title'] );

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$instance['number'] = (int) $new_instance['number'];

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$instance['show_date'] = isset( $new_instance['show_date'] ) ? (bool) $new_instance['show_date'] : false;

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return $instance;

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}

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/**

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* Outputs the settings form for the Recent Posts widget.

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* @since 2.8.0

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* @param array $instance Current settings.

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public function form( $instance ) {

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$title = isset( $instance['title'] ) ? esc_attr( $instance['title'] ) : '';

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$number = isset( $instance['number'] ) ? absint( $instance['number'] ) : 5;

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$show_date = isset( $instance['show_date'] ) ? (bool) $instance['show_date'] : false;

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<p>

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<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>

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<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo $title; ?>" />

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</p>

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<p>

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<label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number of posts to show:' ); ?></label>

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<input class="tiny-text" id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="number" step="1" min="1" value="<?php echo $number; ?>" size="3" />

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</p>

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<p>

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<input class="checkbox" type="checkbox"<?php checked( $show_date ); ?> id="<?php echo $this->get_field_id( 'show_date' ); ?>" name="<?php echo $this->get_field_name( 'show_date' ); ?>" />

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<label for="<?php echo $this->get_field_id( 'show_date' ); ?>"><?php _e( 'Display post date?' ); ?></label>

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</p>

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<?php

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}

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}

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