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<?php |
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namespace GeminiLabs\Castor; |
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use GeminiLabs\Castor\Helpers\PostMeta; |
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use GeminiLabs\Castor\Helpers\Theme; |
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use GeminiLabs\Castor\Helpers\Utility; |
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use GeminiLabs\Castor\Image; |
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use WP_Post; |
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use WP_Query; |
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class Gallery |
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{ |
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public $gallery; |
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protected $args; |
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protected $image; |
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protected $postmeta; |
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protected $theme; |
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protected $utility; |
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public function __construct( Image $image, PostMeta $postmeta, Theme $theme, Utility $utility ) |
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{ |
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$this->image = $image; |
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$this->postmeta = $postmeta; |
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$this->theme = $theme; |
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$this->utility = $utility; |
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} |
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/** |
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* @return WP_Query |
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*/ |
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public function get( array $args = [] ) |
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{ |
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$this->normalizeArgs( $args ); |
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$this->gallery = new WP_Query([ |
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'orderby' => 'post__in', |
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'paged' => $this->getPaged(), |
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'post__in' => $this->args['media'], |
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'post_mime_type' => 'image', |
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'post_type' => 'attachment', |
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'post_status' => 'inherit', |
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'posts_per_page' => $this->args['images_per_page'], |
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]); |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function render() |
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{ |
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if( empty( $this->args['media'] ))return; |
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$images = array_reduce( $this->gallery->posts, function( $images, $attachment ) { |
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return $images . $this->renderImage( $attachment ); |
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}); |
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return sprintf( '<div class="gallery-images" itemscope itemtype="http://schema.org/ImageGallery">%s</div>%s', |
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$images, |
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$this->renderPagination() |
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); |
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} |
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/** |
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* @return null|string |
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*/ |
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public function renderImage( WP_Post $attachment ) |
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{ |
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$image = $this->image->get( $attachment->ID )->image; |
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if( !$image )return; |
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return sprintf( |
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'<figure class="gallery-image" data-w="%s" data-h="%s" data-ps=\'%s\' itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject">' . |
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'%s%s' . |
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'</figure>', |
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$image->thumbnail['width'], |
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$image->thumbnail['height'], |
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$this->getPhotoswipeData( $image ), |
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$this->renderImageTag( $image ), |
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$this->renderImageCaption( $image ) |
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); |
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} |
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/** |
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* @return null|string |
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*/ |
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public function renderPagination() |
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{ |
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if( !$this->args['pagination'] )return; |
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return paginate_links([ |
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'before_page_number' => '<span class="screen-reader-text">' . __( 'Page', 'castor' ) . ' </span>', |
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'current' => $this->gallery->query['paged'], |
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'mid_size' => 1, |
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'next_text' => __( 'Next', 'castor' ), |
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'prev_text' => __( 'Previous', 'castor' ), |
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'total' => $this->gallery->max_num_pages, |
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]); |
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} |
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/** |
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* @param string $key |
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* @param mixed $value |
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* |
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* @return bool |
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*/ |
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protected function getBoolValue( $key, $value = null ) |
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{ |
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$bool = $this->getValue( $key, $value ); |
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if( is_null( filter_var( $bool, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE ))) { |
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$bool = $this->postmeta->get( $bool ); |
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} |
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return wp_validate_boolean( $bool ); |
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} |
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/** |
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* @param mixed $value |
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* |
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* @return int |
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*/ |
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protected function getGalleryArg( $value = null ) |
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{ |
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$gallery = $this->getValue( 'gallery', $value ); |
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if( !is_numeric( $gallery ) && is_string( $gallery )) { |
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$gallery = intval( $this->postmeta->get( $gallery )); |
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} |
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return !is_null( get_post( $gallery )) |
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? intval( $gallery ) |
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: 0; |
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} |
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/** |
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* @param mixed $value |
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* |
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* @return int |
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*/ |
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protected function getImagesPerPageArg( $value = null ) |
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{ |
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$perPage = $this->getValue( 'images_per_page', $value ); |
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if( !is_numeric( $perPage ) && is_string( $perPage )) { |
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$perPage = $this->postmeta->get( $perPage ); |
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} |
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return !!intval( $perPage ) |
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? $perPage |
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: -1; |
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} |
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/** |
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* @param mixed $value |
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* |
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* @return bool |
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*/ |
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protected function getLazyloadArg( $value = null ) |
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{ |
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return $this->getBoolValue( 'lazyload', $value ); |
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} |
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/** |
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* @param mixed $value |
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* |
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* @return array |
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*/ |
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protected function getMediaArg( $value = null ) |
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{ |
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$media = $this->getValue( 'media', $value ); |
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if( is_string( $media )) { |
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$media = $this->postmeta->get( $media, [ |
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'ID' => $this->getGalleryArg(), |
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'single' => false, |
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]); |
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} |
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return is_array( $media ) |
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? wp_parse_id_list( $media ) |
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: []; |
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} |
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/** |
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* @return int |
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*/ |
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protected function getPaged() |
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{ |
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return intval( get_query_var(( is_front_page() ? 'page' : 'paged' ))) ?: 1; |
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} |
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/** |
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* @param mixed $value |
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* |
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* @return bool |
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*/ |
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protected function getPaginationArg( $value = null ) |
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{ |
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return $this->getBoolValue( 'pagination', $value ); |
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} |
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/** |
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* @param mixed $value |
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* |
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* @return bool |
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*/ |
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protected function getPermalinksArg( $value = null ) |
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{ |
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return $this->getBoolValue( 'permalinks', $value ); |
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} |
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/** |
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* @return string |
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*/ |
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protected function getPhotoswipeData( $image ) |
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{ |
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return sprintf( '{"l":{"src":"%s","w":%d,"h":%d},"m":{"src":"%s","w":%d,"h":%d}}', |
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$image->large['url'], |
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$image->large['width'], |
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$image->large['height'], |
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$image->medium['url'], |
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$image->medium['width'], |
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$image->medium['height'] |
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); |
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} |
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/** |
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* @param string $key |
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* @param mixed $value |
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* |
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* @return mixed |
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*/ |
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protected function getValue( $key, $value = null ) |
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{ |
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if( is_null( $value ) && isset( $this->args[$key] )) { |
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$value = $this->args[$key]; |
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} |
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return $value; |
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} |
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/** |
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* @return array |
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*/ |
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protected function normalizeArgs( array $args = [] ) |
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{ |
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$defaults = [ |
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'gallery', // (string) meta_key | (int) post_id |
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'lazyload', // (string) meta_key | (bool) |
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'media', // (string) meta_key | (array) post_ids |
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'pagination', // (string) meta_key | (bool) |
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'images_per_page', // (string) meta_key | (int) number |
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'permalinks', // (string) meta_key | (bool) |
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]; |
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$this->args = shortcode_atts( array_combine( $defaults, $defaults ), $args ); |
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array_walk( $this->args, function( &$value, $key ) { |
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$method = $this->utility->buildMethodName( $key . '_arg' ); |
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if( method_exists( $this, $method )) { |
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$value = call_user_func([ $this, $method ], $value ); |
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} |
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}); |
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return $this->args; |
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} |
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/** |
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* @param object $image |
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* @return null|string |
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*/ |
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protected function renderImageCaption( $image ) |
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{ |
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if( !empty( $image->copyright )) { |
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$image->caption .= sprintf( ' <span itemprop="copyrightHolder">%s</span>', $image->copyright ); |
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} |
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if( empty( $image->caption ))return; |
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return sprintf( '<figcaption itemprop="caption description">%s</figcaption>', $image->caption ); |
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} |
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/** |
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* @param object $image |
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* @return null|string |
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*/ |
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protected function renderImageTag( $image ) |
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{ |
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$imgSrc = $this->getLazyloadArg() |
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? $this->theme->imageUri( 'blank.gif' ) |
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: $image->thumbnail['url']; |
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287
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$imgTag = sprintf( '<img src="%s" data-src="%s" itemprop="thumbnail" alt="%s"/>', |
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$imgSrc, |
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$image->thumbnail['url'], |
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$image->alt |
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); |
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return $this->getPermalinksArg() |
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? sprintf( '<a href="%s" itemprop="contentUrl">%s</a>', $image->permalink, $imgTag ) |
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: $imgTag; |
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} |
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} |
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298
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