<?php

/**

 * Custom Widget for displaying specific post formats

 *

 * Displays posts from Aside, Quote, Video, Audio, Image, Gallery, and Link formats.

 *

 * @link https://codex.wordpress.org/Widgets_API#Developing_Widgets

 *

 * @package WordPress

 * @subpackage Twenty_Fourteen

 * @since Twenty Fourteen 1.0

 */

class Twenty_Fourteen_Ephemera_Widget extends WP_Widget {

	/**

	 * The supported post formats.

	 *

	 * @access private

	 * @since Twenty Fourteen 1.0

	 *

	 * @var array

	 */

	private $formats = array( 'aside', 'image', 'video', 'audio', 'quote', 'link', 'gallery' );

	/**

	 * Constructor.

	 *

	 * @since Twenty Fourteen 1.0

	 *

	 * @return Twenty_Fourteen_Ephemera_Widget

	 */

	public function __construct() {

		parent::__construct( 'widget_twentyfourteen_ephemera', __( 'Twenty Fourteen Ephemera', 'twentyfourteen' ), array(

			'classname'   => 'widget_twentyfourteen_ephemera',

			'description' => __( 'Use this widget to list your recent Aside, Quote, Video, Audio, Image, Gallery, and Link posts.', 'twentyfourteen' ),

		) );

	}

	/**

	 * Output the HTML for this widget.

	 *

	 * @access public

	 * @since Twenty Fourteen 1.0

	 *

	 * @param array $args     An array of standard parameters for widgets in this theme.

	 * @param array $instance An array of settings for this widget instance.

	 */

	public function widget( $args, $instance ) {

		$format = isset( $instance['format'] ) && in_array( $instance['format'], $this->formats ) ? $instance['format'] : 'aside';

		switch ( $format ) {

			case 'image':

				$format_string      = __( 'Images', 'twentyfourteen' );

				$format_string_more = __( 'More images', 'twentyfourteen' );

				break;

			case 'video':

				$format_string      = __( 'Videos', 'twentyfourteen' );

				$format_string_more = __( 'More videos', 'twentyfourteen' );

				break;

			case 'audio':

				$format_string      = __( 'Audio', 'twentyfourteen' );

				$format_string_more = __( 'More audio', 'twentyfourteen' );

				break;

			case 'quote':

				$format_string      = __( 'Quotes', 'twentyfourteen' );

				$format_string_more = __( 'More quotes', 'twentyfourteen' );

				break;

			case 'link':

				$format_string      = __( 'Links', 'twentyfourteen' );

				$format_string_more = __( 'More links', 'twentyfourteen' );

				break;

			case 'gallery':

				$format_string      = __( 'Galleries', 'twentyfourteen' );

				$format_string_more = __( 'More galleries', 'twentyfourteen' );

				break;

			case 'aside':

			default:

				$format_string      = __( 'Asides', 'twentyfourteen' );

				$format_string_more = __( 'More asides', 'twentyfourteen' );

				break;

		}

		$number = empty( $instance['number'] ) ? 2 : absint( $instance['number'] );

		$title  = apply_filters( 'widget_title', empty( $instance['title'] ) ? $format_string : $instance['title'], $instance, $this->id_base );

		$ephemera = new WP_Query( array(

			'order'          => 'DESC',

			'posts_per_page' => $number,

			'no_found_rows'  => true,

			'post_status'    => 'publish',

			'post__not_in'   => get_option( 'sticky_posts' ),

			'tax_query'      => array(

				array(

					'taxonomy' => 'post_format',

					'terms'    => array( "post-format-$format" ),

					'field'    => 'slug',

					'operator' => 'IN',

				),

			),

		) );

		if ( $ephemera->have_posts() ) :

			$tmp_content_width = $GLOBALS['content_width'];

			$GLOBALS['content_width'] = 306;

			echo $args['before_widget'];

			?>

			<h1 class="widget-title <?php echo esc_attr( $format ); ?>">

				<a class="entry-format" href="<?php echo esc_url( get_post_format_link( $format ) ); ?>"><?php echo esc_html( $title ); ?></a>

			</h1>

			<ol>

				<?php

					while ( $ephemera->have_posts() ) :

						$ephemera->the_post();

						$tmp_more = $GLOBALS['more'];

						$GLOBALS['more'] = 0;

				?>

				<li>

				<article <?php post_class(); ?>>

					<div class="entry-content">

						<?php

							if ( has_post_format( 'gallery' ) ) :

								if ( post_password_required() ) :

									the_content( __( 'Continue reading <span class="meta-nav">&rarr;</span>', 'twentyfourteen' ) );

								else :

									$images = array();

									$galleries = get_post_galleries( get_the_ID(), false );

									if ( isset( $galleries[0]['ids'] ) )

										$images = explode( ',', $galleries[0]['ids'] );

									if ( ! $images ) :

										$images = get_posts( array(

											'fields'         => 'ids',

											'numberposts'    => -1,

											'order'          => 'ASC',

											'orderby'        => 'menu_order',

											'post_mime_type' => 'image',

											'post_parent'    => get_the_ID(),

											'post_type'      => 'attachment',

										) );

									endif;

									$total_images = count( $images );

									if ( has_post_thumbnail() ) :

										$post_thumbnail = get_the_post_thumbnail();

									elseif ( $total_images > 0 ) :

										$image          = reset( $images );

										$post_thumbnail = wp_get_attachment_image( $image, 'post-thumbnail' );

									endif;

									if ( ! empty ( $post_thumbnail ) ) :

						?>

						<a href="<?php the_permalink(); ?>"><?php echo $post_thumbnail; ?></a>

						<?php endif; ?>

						<p class="wp-caption-text">

							<?php

								printf( _n( 'This gallery contains <a href="%1$s" rel="bookmark">%2$s photo</a>.', 'This gallery contains <a href="%1$s" rel="bookmark">%2$s photos</a>.', $total_images, 'twentyfourteen' ),

									esc_url( get_permalink() ),

									number_format_i18n( $total_images )

								);

							?>

						</p>

						<?php

								endif;

							else :

								the_content( __( 'Continue reading <span class="meta-nav">&rarr;</span>', 'twentyfourteen' ) );

							endif;

						?>

					</div><!-- .entry-content -->

					<header class="entry-header">

						<div class="entry-meta">

							<?php

								if ( ! has_post_format( 'link' ) ) :

									the_title( '<h1 class="entry-title"><a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h1>' );

								endif;

								printf( '<span class="entry-date"><a href="%1$s" rel="bookmark"><time class="entry-date" datetime="%2$s">%3$s</time></a></span> <span class="byline"><span class="author vcard"><a class="url fn n" href="%4$s" rel="author">%5$s</a></span></span>',

									esc_url( get_permalink() ),

									esc_attr( get_the_date( 'c' ) ),

									esc_html( get_the_date() ),

									esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),

									get_the_author()

								);

								if ( ! post_password_required() && ( comments_open() || get_comments_number() ) ) :

							?>

							<span class="comments-link"><?php comments_popup_link( __( 'Leave a comment', 'twentyfourteen' ), __( '1 Comment', 'twentyfourteen' ), __( '% Comments', 'twentyfourteen' ) ); ?></span>

							<?php endif; ?>

						</div><!-- .entry-meta -->

					</header><!-- .entry-header -->

				</article><!-- #post-## -->

				</li>

				<?php endwhile; ?>

			</ol>

			<a class="post-format-archive-link" href="<?php echo esc_url( get_post_format_link( $format ) ); ?>">

				<?php

					/* translators: used with More archives link */

					printf( __( '%s <span class="meta-nav">&rarr;</span>', 'twentyfourteen' ), $format_string_more );

				?>

			</a>

			<?php

			echo $args['after_widget'];

			// Reset the post globals as this query will have stomped on it.

			wp_reset_postdata();

			$GLOBALS['more']          = $tmp_more;

			$GLOBALS['content_width'] = $tmp_content_width;

		endif; // End check for ephemeral posts.

	}

	/**

	 * Deal with the settings when they are saved by the admin.

	 *

	 * Here is where any validation should happen.

	 *

	 * @since Twenty Fourteen 1.0

	 *

	 * @param array $new_instance New widget instance.

	 * @param array $instance     Original widget instance.

	 * @return array Updated widget instance.

	 */

	function update( $new_instance, $instance ) {

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

		$instance['number'] = empty( $new_instance['number'] ) ? 2 : absint( $new_instance['number'] );

		if ( in_array( $new_instance['format'], $this->formats ) ) {

			$instance['format'] = $new_instance['format'];

		}

		return $instance;

	}

	/**

	 * Display the form for this widget on the Widgets page of the Admin area.

	 *

	 * @since Twenty Fourteen 1.0

	 *

	 * @param array $instance

	 */

	function form( $instance ) {

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

		$number = empty( $instance['number'] ) ? 2 : absint( $instance['number'] );

		$format = isset( $instance['format'] ) && in_array( $instance['format'], $this->formats ) ? $instance['format'] : 'aside';

		?>

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

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

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

			<input id="<?php echo esc_attr( $this->get_field_id( 'number' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'number' ) ); ?>" type="text" value="<?php echo esc_attr( $number ); ?>" size="3"></p>

			<p><label for="<?php echo esc_attr( $this->get_field_id( 'format' ) ); ?>"><?php _e( 'Post format to show:', 'twentyfourteen' ); ?></label>

			<select id="<?php echo esc_attr( $this->get_field_id( 'format' ) ); ?>" class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'format' ) ); ?>">

				<?php foreach ( $this->formats as $slug ) : ?>

				<option value="<?php echo esc_attr( $slug ); ?>"<?php selected( $format, $slug ); ?>><?php echo esc_html( get_post_format_string( $slug ) ); ?></option>

				<?php endforeach; ?>

			</select>

		<?php

	}

}