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<?php

class WP_Widget_Recent_Posts extends WP_Widget
{
    public function __construct()
    {
        $widget_ops = array('classname' => 'widget_recent_entries', 'description' => __('Your site&#8217;s most recent Posts.'), 'customize_selective_refresh' => true);
        parent::__construct('recent-posts', __('Recent Posts'), $widget_ops);
        $this->alt_option_name = 'widget_recent_entries';
    }
    public function widget($args, $instance)
    {
        if (!isset($args['widget_id'])) {
            $args['widget_id'] = $this->id;
        }
        $default_title = __('Recent Posts');
        $title = !empty($instance['title']) ? $instance['title'] : $default_title;
        $title = apply_filters('widget_title', $title, $instance, $this->id_base);
        $number = !empty($instance['number']) ? absint($instance['number']) : 5;
        if (!$number) {
            $number = 5;
        }
        $show_date = isset($instance['show_date']) ? $instance['show_date'] : false;
        $r = new WP_Query(apply_filters('widget_posts_args', array('posts_per_page' => $number, 'no_found_rows' => true, 'post_status' => 'publish', 'ignore_sticky_posts' => true), $instance));
        if (!$r->have_posts()) {
            return;
        }
        ?>

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

<?php 
        if ($title) {
            echo $args['before_title'] . $title . $args['after_title'];
        }
        $format = current_theme_supports('html5', 'navigation-widgets') ? 'html5' : 'xhtml';
        $format = apply_filters('navigation_widgets_format', $format);
        if ('html5' === $format) {
            $title = trim(strip_tags($title));
            $aria_label = $title ? $title : $default_title;
            echo '<nav role="navigation" aria-label="' . esc_attr($aria_label) . '">';
        }
        ?>

<ul>
			<?php 
        foreach ($r->posts as $recent_post) {
            ?>
				<?php 
            $post_title = get_the_title($recent_post->ID);
            $title = !empty($post_title) ? $post_title : __('(no title)');
            $aria_current = '';
            if (get_queried_object_id() === $recent_post->ID) {
                $aria_current = ' aria-current="page"';
            }
            ?>
				<li>
					<a href="<?php 
            the_permalink($recent_post->ID);
            ?>"<?php 
            echo $aria_current;
            ?>><?php 
            echo $title;
            ?></a>
					<?php 
            if ($show_date) {
                ?>
						<span class="post-date"><?php 
                echo get_the_date('', $recent_post->ID);
                ?></span>
					<?php 
            }
            ?>
				</li>
			<?php 
        }
        ?>
		</ul>

<?php 
        if ('html5' === $format) {
            echo '</nav>';
        }
        echo $args['after_widget'];
    }
    public function update($new_instance, $old_instance)
    {
        $instance = $old_instance;
        $instance['title'] = sanitize_text_field($new_instance['title']);
        $instance['number'] = (int) $new_instance['number'];
        $instance['show_date'] = isset($new_instance['show_date']) ? (bool) $new_instance['show_date'] : false;
        return $instance;
    }
    public function form($instance)
    {
        $title = isset($instance['title']) ? esc_attr($instance['title']) : '';
        $number = isset($instance['number']) ? absint($instance['number']) : 5;
        $show_date = isset($instance['show_date']) ? (bool) $instance['show_date'] : false;
        ?>
		<p>
			<label for="<?php 
        echo $this->get_field_id('title');
        ?>"><?php 
        _e('Title:');
        ?></label>
			<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;
        ?>" />
		</p>

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

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