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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 3 times in this file.
| Line | Code |
|---|---|
| 1438 | |
| 1439 | /** |
| 1440 | * Filters the media metadata. |
| 1441 | * |
| 1442 | * @since 2.5.0 |
| 1443 | * |
| 1444 | * @param string $media_dims The HTML markup containing the media dimensions. |
| 1445 | * @param WP_Post $post The WP_Post attachment object. |
| 1446 | */ |
| 1447 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 1448 | |
| 1449 | $image_edit_button = ''; |
| 1450 | if ( wp_attachment_is_image( $post->ID ) && wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) { |
| 1451 | $nonce = wp_create_nonce( "image_editor-$post->ID" ); |
| 1452 | $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>"; |
| 1453 | } |
| 1454 | |
| 1455 | $attachment_url = get_permalink( $attachment_id ); |
| 1456 | |
| Line | Code |
| 1663 | |
| 1664 | /** This filter is documented in wp-admin/includes/media.php */ |
| 1665 | $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post ); |
| 1666 | |
| 1667 | unset( $form_fields['image-size'], $form_fields['align'], $form_fields['image_alt'], |
| 1668 | $form_fields['post_title'], $form_fields['post_excerpt'], $form_fields['post_content'], |
| 1669 | $form_fields['url'], $form_fields['menu_order'], $form_fields['image_url'] ); |
| 1670 | |
| 1671 | /** This filter is documented in wp-admin/includes/media.php */ |
| 1672 | $media_meta = apply_filters( 'media_meta', '', $post ); |
| 1673 | |
| 1674 | $defaults = array( |
| 1675 | 'input' => 'text', |
| 1676 | 'required' => false, |
| 1677 | 'value' => '', |
| 1678 | 'extra_rows' => array(), |
| 1679 | 'show_in_edit' => true, |
| 1680 | 'show_in_modal' => true, |
| 1681 | ); |
| Line | Code |
| 2845 | |
| 2846 | $file = get_attached_file( $post->ID ); |
| 2847 | $filename = esc_html( wp_basename( $file ) ); |
| 2848 | |
| 2849 | $media_dims = ''; |
| 2850 | $meta = wp_get_attachment_metadata( $post->ID ); |
| 2851 | if ( isset( $meta['width'], $meta['height'] ) ) |
| 2852 | $media_dims .= "<span id='media-dims-$post->ID'>{$meta['width']} × {$meta['height']}</span> "; |
| 2853 | /** This filter is documented in wp-admin/includes/media.php */ |
| 2854 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 2855 | |
| 2856 | $att_url = wp_get_attachment_url( $post->ID ); |
| 2857 | ?> |
| 2858 | <div class="misc-pub-section misc-pub-attachment"> |
| 2859 | <label for="attachment_url"><?php _e( 'File URL:' ); ?></label> |
| 2860 | <input type="text" class="widefat urlfield" readonly="readonly" name="attachment_url" id="attachment_url" value="<?php echo esc_attr( $att_url ); ?>" /> |
| 2861 | </div> |
| 2862 | <div class="misc-pub-section misc-pub-filename"> |
| 2863 | <?php _e( 'File name:' ); ?> <strong><?php echo $filename; ?></strong> |