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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 |
|---|---|
| 1424 | |
| 1425 | /** |
| 1426 | * Filter the media metadata. |
| 1427 | * |
| 1428 | * @since 2.5.0 |
| 1429 | * |
| 1430 | * @param string $media_dims The HTML markup containing the media dimensions. |
| 1431 | * @param WP_Post $post The WP_Post attachment object. |
| 1432 | */ |
| 1433 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 1434 | |
| 1435 | $image_edit_button = ''; |
| 1436 | if ( wp_attachment_is_image( $post->ID ) && wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) { |
| 1437 | $nonce = wp_create_nonce( "image_editor-$post->ID" ); |
| 1438 | $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>"; |
| 1439 | } |
| 1440 | |
| 1441 | $attachment_url = get_permalink( $attachment_id ); |
| 1442 | |
| Line | Code |
| 1647 | |
| 1648 | /** This filter is documented in wp-admin/includes/media.php */ |
| 1649 | $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post ); |
| 1650 | |
| 1651 | unset( $form_fields['image-size'], $form_fields['align'], $form_fields['image_alt'], |
| 1652 | $form_fields['post_title'], $form_fields['post_excerpt'], $form_fields['post_content'], |
| 1653 | $form_fields['url'], $form_fields['menu_order'], $form_fields['image_url'] ); |
| 1654 | |
| 1655 | /** This filter is documented in wp-admin/includes/media.php */ |
| 1656 | $media_meta = apply_filters( 'media_meta', '', $post ); |
| 1657 | |
| 1658 | $defaults = array( |
| 1659 | 'input' => 'text', |
| 1660 | 'required' => false, |
| 1661 | 'value' => '', |
| 1662 | 'extra_rows' => array(), |
| 1663 | 'show_in_edit' => true, |
| 1664 | 'show_in_modal' => true, |
| 1665 | ); |
| Line | Code |
| 2801 | |
| 2802 | $file = get_attached_file( $post->ID ); |
| 2803 | $filename = esc_html( wp_basename( $file ) ); |
| 2804 | |
| 2805 | $media_dims = ''; |
| 2806 | $meta = wp_get_attachment_metadata( $post->ID ); |
| 2807 | if ( isset( $meta['width'], $meta['height'] ) ) |
| 2808 | $media_dims .= "<span id='media-dims-$post->ID'>{$meta['width']} × {$meta['height']}</span> "; |
| 2809 | /** This filter is documented in wp-admin/includes/media.php */ |
| 2810 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 2811 | |
| 2812 | $att_url = wp_get_attachment_url( $post->ID ); |
| 2813 | ?> |
| 2814 | <div class="misc-pub-section misc-pub-attachment"> |
| 2815 | <label for="attachment_url"><?php _e( 'File URL:' ); ?></label> |
| 2816 | <input type="text" class="widefat urlfield" readonly="readonly" name="attachment_url" id="attachment_url" value="<?php echo esc_attr( $att_url ); ?>" /> |
| 2817 | </div> |
| 2818 | <div class="misc-pub-section misc-pub-filename"> |
| 2819 | <?php _e( 'File name:' ); ?> <strong><?php echo $filename; ?></strong> |