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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 |
|---|---|
| 1365 | |
| 1366 | /** |
| 1367 | * Filter the media metadata. |
| 1368 | * |
| 1369 | * @since 2.5.0 |
| 1370 | * |
| 1371 | * @param string $media_dims The HTML markup containing the media dimensions. |
| 1372 | * @param WP_Post $post The WP_Post attachment object. |
| 1373 | */ |
| 1374 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 1375 | |
| 1376 | $image_edit_button = ''; |
| 1377 | if ( wp_attachment_is_image( $post->ID ) && wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) { |
| 1378 | $nonce = wp_create_nonce( "image_editor-$post->ID" ); |
| 1379 | $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>"; |
| 1380 | } |
| 1381 | |
| 1382 | $attachment_url = get_permalink( $attachment_id ); |
| 1383 | |
| Line | Code |
| 1575 | |
| 1576 | /** This filter is documented in wp-admin/includes/media.php */ |
| 1577 | $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post ); |
| 1578 | |
| 1579 | unset( $form_fields['image-size'], $form_fields['align'], $form_fields['image_alt'], |
| 1580 | $form_fields['post_title'], $form_fields['post_excerpt'], $form_fields['post_content'], |
| 1581 | $form_fields['url'], $form_fields['menu_order'], $form_fields['image_url'] ); |
| 1582 | |
| 1583 | /** This filter is documented in wp-admin/includes/media.php */ |
| 1584 | $media_meta = apply_filters( 'media_meta', '', $post ); |
| 1585 | |
| 1586 | $defaults = array( |
| 1587 | 'input' => 'text', |
| 1588 | 'required' => false, |
| 1589 | 'value' => '', |
| 1590 | 'extra_rows' => array(), |
| 1591 | 'show_in_edit' => true, |
| 1592 | 'show_in_modal' => true, |
| 1593 | ); |
| Line | Code |
| 2708 | $post = get_post(); |
| 2709 | |
| 2710 | $filename = esc_html( wp_basename( $post->guid ) ); |
| 2711 | |
| 2712 | $media_dims = ''; |
| 2713 | $meta = wp_get_attachment_metadata( $post->ID ); |
| 2714 | if ( isset( $meta['width'], $meta['height'] ) ) |
| 2715 | $media_dims .= "<span id='media-dims-$post->ID'>{$meta['width']} × {$meta['height']}</span> "; |
| 2716 | /** This filter is documented in wp-admin/includes/media.php */ |
| 2717 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 2718 | |
| 2719 | $att_url = wp_get_attachment_url( $post->ID ); |
| 2720 | ?> |
| 2721 | <div class="misc-pub-section misc-pub-attachment"> |
| 2722 | <label for="attachment_url"><?php _e( 'File URL:' ); ?></label> |
| 2723 | <input type="text" class="widefat urlfield" readonly="readonly" name="attachment_url" value="<?php echo esc_attr($att_url); ?>" /> |
| 2724 | </div> |
| 2725 | <div class="misc-pub-section misc-pub-filename"> |
| 2726 | <?php _e( 'File name:' ); ?> <strong><?php echo $filename; ?></strong> |