WP_Widget_Media_Image::render_media( array $instance )

Source

public function render_media( $instance ) {
	$instance = array_merge( wp_list_pluck( $this->get_instance_schema(), 'default' ), $instance );
	$instance = wp_parse_args(
		$instance,
		array(
			'size' => 'thumbnail',
		)
	);

	$attachment = null;

	if ( $this->is_attachment_with_mime_type( $instance['attachment_id'], $this->widget_options['mime_type'] ) ) {
		$attachment = get_post( $instance['attachment_id'] );
	}

	if ( $attachment ) {
		$caption = '';
		if ( ! isset( $instance['caption'] ) ) {
			$caption = $attachment->post_excerpt;
		} elseif ( trim( $instance['caption'] ) ) {
			$caption = $instance['caption'];
		}

		$image_attributes = array(
			'class' => sprintf( 'image wp-image-%d %s', $attachment->ID, $instance['image_classes'] ),
			'style' => 'max-width: 100%; height: auto;',
		);
		if ( ! empty( $instance['image_title'] ) ) {
			$image_attributes['title'] = $instance['image_title'];
		}

		if ( $instance['alt'] ) {
			$image_attributes['alt'] = $instance['alt'];
		}

		$size = $instance['size'];

		if ( 'custom' === $size || ! in_array( $size, array_merge( get_intermediate_image_sizes(), array( 'full' ) ), true ) ) {
			$size  = array( $instance['width'], $instance['height'] );
			$width = $instance['width'];
		} else {
			$caption_size = _wp_get_image_size_from_meta( $instance['size'], wp_get_attachment_metadata( $attachment->ID ) );
			$width        = empty( $caption_size[0] ) ? 0 : $caption_size[0];
		}

		$image_attributes['class'] .= sprintf( ' attachment-%1$s size-%1$s', is_array( $size ) ? implode( 'x', $size ) : $size );

		$image = wp_get_attachment_image( $attachment->ID, $size, false, $image_attributes );

	} else {
		if ( empty( $instance['url'] ) ) {
			return;
		}

		$instance['size'] = 'custom';
		$caption          = $instance['caption'];
		$width            = $instance['width'];
		$classes          = 'image ' . $instance['image_classes'];
		if ( 0 === $instance['width'] ) {
			$instance['width'] = '';
		}
		if ( 0 === $instance['height'] ) {
			$instance['height'] = '';
		}

		$attr = array(
			'class'  => $classes,
			'src'    => $instance['url'],
			'alt'    => $instance['alt'],
			'width'  => $instance['width'],
			'height' => $instance['height'],
		);

		$loading_optimization_attr = wp_get_loading_optimization_attributes(
			'img',
			$attr,
			'widget_media_image'
		);

		$attr = array_merge( $attr, $loading_optimization_attr );

		$attr  = array_map( 'esc_attr', $attr );
		$image = '<img';

		foreach ( $attr as $name => $value ) {
			$image .= ' ' . $name . '="' . $value . '"';
		}

		$image .= ' />';
	} // End if().

	$url = '';
	if ( 'file' === $instance['link_type'] ) {
		$url = $attachment ? wp_get_attachment_url( $attachment->ID ) : $instance['url'];
	} elseif ( $attachment && 'post' === $instance['link_type'] ) {
		$url = get_attachment_link( $attachment->ID );
	} elseif ( 'custom' === $instance['link_type'] && ! empty( $instance['link_url'] ) ) {
		$url = $instance['link_url'];
	}

	if ( $url ) {
		$link = sprintf( '<a href="%s"', esc_url( $url ) );
		if ( ! empty( $instance['link_classes'] ) ) {
			$link .= sprintf( ' class="%s"', esc_attr( $instance['link_classes'] ) );
		}
		if ( ! empty( $instance['link_rel'] ) ) {
			$link .= sprintf( ' rel="%s"', esc_attr( $instance['link_rel'] ) );
		}
		if ( ! empty( $instance['link_target_blank'] ) ) {
			$link .= ' target="_blank"';
		}
		$link .= '>';
		$link .= $image;
		$link .= '</a>';
		$image = wp_targeted_link_rel( $link );
	}

	if ( $caption ) {
		$image = img_caption_shortcode(
			array(
				'width'   => $width,
				'caption' => $caption,
			),
			$image
		);
	}

	echo $image;
}

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