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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 |
|---|---|
| 1411 | |
| 1412 | /** |
| 1413 | * Filter the media metadata. |
| 1414 | * |
| 1415 | * @since 2.5.0 |
| 1416 | * |
| 1417 | * @param string $media_dims The HTML markup containing the media dimensions. |
| 1418 | * @param WP_Post $post The WP_Post attachment object. |
| 1419 | */ |
| 1420 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 1421 | |
| 1422 | $image_edit_button = ''; |
| 1423 | if ( wp_attachment_is_image( $post->ID ) && wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) { |
| 1424 | $nonce = wp_create_nonce( "image_editor-$post->ID" ); |
| 1425 | $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>"; |
| 1426 | } |
| 1427 | |
| 1428 | $attachment_url = get_permalink( $attachment_id ); |
| 1429 | |
| Line | Code |
| 1632 | |
| 1633 | /** This filter is documented in wp-admin/includes/media.php */ |
| 1634 | $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post ); |
| 1635 | |
| 1636 | unset( $form_fields['image-size'], $form_fields['align'], $form_fields['image_alt'], |
| 1637 | $form_fields['post_title'], $form_fields['post_excerpt'], $form_fields['post_content'], |
| 1638 | $form_fields['url'], $form_fields['menu_order'], $form_fields['image_url'] ); |
| 1639 | |
| 1640 | /** This filter is documented in wp-admin/includes/media.php */ |
| 1641 | $media_meta = apply_filters( 'media_meta', '', $post ); |
| 1642 | |
| 1643 | $defaults = array( |
| 1644 | 'input' => 'text', |
| 1645 | 'required' => false, |
| 1646 | 'value' => '', |
| 1647 | 'extra_rows' => array(), |
| 1648 | 'show_in_edit' => true, |
| 1649 | 'show_in_modal' => true, |
| 1650 | ); |
| Line | Code |
| 2785 | $post = get_post(); |
| 2786 | |
| 2787 | $filename = esc_html( wp_basename( $post->guid ) ); |
| 2788 | |
| 2789 | $media_dims = ''; |
| 2790 | $meta = wp_get_attachment_metadata( $post->ID ); |
| 2791 | if ( isset( $meta['width'], $meta['height'] ) ) |
| 2792 | $media_dims .= "<span id='media-dims-$post->ID'>{$meta['width']} × {$meta['height']}</span> "; |
| 2793 | /** This filter is documented in wp-admin/includes/media.php */ |
| 2794 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 2795 | |
| 2796 | $att_url = wp_get_attachment_url( $post->ID ); |
| 2797 | ?> |
| 2798 | <div class="misc-pub-section misc-pub-attachment"> |
| 2799 | <label for="attachment_url"><?php _e( 'File URL:' ); ?></label> |
| 2800 | <input type="text" class="widefat urlfield" readonly="readonly" name="attachment_url" value="<?php echo esc_attr($att_url); ?>" /> |
| 2801 | </div> |
| 2802 | <div class="misc-pub-section misc-pub-filename"> |
| 2803 | <?php _e( 'File name:' ); ?> <strong><?php echo $filename; ?></strong> |