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<?php |
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/** |
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* Class to calculate thumb dimensions for a gallery |
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* Date: 21/03/2017 |
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*/ |
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if ( ! class_exists( 'FooGallery_Thumbnail_Dimensions' ) ) { |
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class FooGallery_Thumbnail_Dimensions { |
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function __construct() { |
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if ( is_admin() ) { |
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add_action( 'foogallery_after_save_gallery', array( $this, 'calculate_thumbnail_dimensions' ), 9, 2 ); |
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} |
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add_filter( 'foogallery_attachment_load', array( $this, 'load_thumbnail_dimensions' ), 10, 2 ); |
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add_filter( 'foogallery_attachment_html_image_attributes', array( $this, 'include_thumb_dimension_attributes' ), 10, 3 ); |
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} |
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/** |
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* Calculate the exact thumb size for the gallery and save the meta data |
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* @param $post_id |
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* @param $form_post |
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*/ |
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function calculate_thumbnail_dimensions( $post_id, $form_post ) { |
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$foogallery = FooGallery::get_by_id( $post_id ); |
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$gallery_template = $foogallery->gallery_template; |
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$setting_key = "{$gallery_template}_thumbnail_dimensions"; |
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$default_thumbnail_dimensions = $foogallery->get_meta( $setting_key, false ); |
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$thumbnail_dimensions = apply_filters( 'foogallery_template_thumbnail_dimensions-' . $gallery_template, $default_thumbnail_dimensions, $foogallery ); |
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if ( isset( $thumbnail_dimensions ) && is_array( $thumbnail_dimensions ) ) { |
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//$thumbnail_dimensions |
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$thumb_width = (int) $thumbnail_dimensions['width']; |
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$thumb_height = (int) $thumbnail_dimensions['height']; |
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$thumb_crop = (bool) $thumbnail_dimensions['crop']; |
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foreach ( $foogallery->attachments() as $attachment ) { |
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$size_array = image_resize_dimensions( $attachment->width, $attachment->height, $thumb_width, $thumb_height, $thumb_crop ); |
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$size = array( |
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'width' => $size_array[4], |
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'height' => $size_array[5] |
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); |
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$existing_size = get_post_meta( $attachment->ID, FOOGALLERY_META_THUMB_DIMENSIONS, true ); |
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$existing_size[$foogallery->ID] = $size; |
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//save the post meta against the attachment |
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update_post_meta( $attachment->ID, FOOGALLERY_META_THUMB_DIMENSIONS, $existing_size ); |
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} |
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} |
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} |
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/** |
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* Load the thumb dimension attributes onto the attachment |
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* @param $foogallery_attachment |
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* @param $foogallery |
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* |
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* @return mixed |
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*/ |
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function load_thumbnail_dimensions( $foogallery_attachment, $foogallery ) { |
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$size = get_post_meta( $foogallery_attachment->ID, FOOGALLERY_META_THUMB_DIMENSIONS, true ); |
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if ( isset( $size ) && is_array( $size ) && array_key_exists( $foogallery->ID, $size ) ) { |
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$size = $size[$foogallery->ID]; |
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$foogallery_attachment->foogallery_id = $foogallery->ID; |
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$foogallery_attachment->thumb_width = $size['width']; |
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$foogallery_attachment->thumb_height = $size['height']; |
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} |
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return $foogallery_attachment; |
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} |
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/** |
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* Include the thumb dimension html attributes in the rendered HTML |
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* |
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* @param $attr |
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* @param $args |
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* @param $foogallery_attachment |
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* |
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* @return array |
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*/ |
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function include_thumb_dimension_attributes( $attr, $args, $foogallery_attachment ) { |
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//do a check to see if the template has changed |
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global $current_foogallery_arguments; |
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global $current_foogallery; |
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if ( isset( $current_foogallery_arguments ) && isset( $current_foogallery_arguments['template'] ) ) { |
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//we need to calculate new dynamic dimensions for the thumb |
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$thumbnail_dimensions = apply_filters( 'foogallery_calculate_thumbnail_dimensions-' . $current_foogallery_arguments['template'], false, $current_foogallery_arguments ); |
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if ( $thumbnail_dimensions ) { |
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//$thumbnail_dimensions |
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$thumb_width = (int) $thumbnail_dimensions['width']; |
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$thumb_height = (int) $thumbnail_dimensions['height']; |
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$thumb_crop = (bool) $thumbnail_dimensions['crop']; |
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$size_array = image_resize_dimensions( $foogallery_attachment->width, $foogallery_attachment->height, $thumb_width, $thumb_height, $thumb_crop ); |
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$foogallery_attachment->foogallery_id = $current_foogallery->ID; |
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$foogallery_attachment->thumb_width = $size_array[4]; |
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$foogallery_attachment->thumb_height = $size_array[5]; |
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} |
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} |
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if ( isset( $foogallery_attachment->foogallery_id ) ) { |
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if ( $foogallery_attachment->thumb_width > 0 ) { |
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$attr['width'] = $foogallery_attachment->thumb_width; |
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} |
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if ( $foogallery_attachment->thumb_height > 0 ) { |
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$attr['height'] = $foogallery_attachment->thumb_height; |
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} |
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} |
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return $attr; |
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} |
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} |
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} |
fooplugins /
foogallery
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