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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 |
|---|---|
| 1541 | |
| 1542 | /** |
| 1543 | * Filters the media metadata. |
| 1544 | * |
| 1545 | * @since 2.5.0 |
| 1546 | * |
| 1547 | * @param string $media_dims The HTML markup containing the media dimensions. |
| 1548 | * @param WP_Post $post The WP_Post attachment object. |
| 1549 | */ |
| 1550 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 1551 | |
| 1552 | $image_edit_button = ''; |
| 1553 | if ( wp_attachment_is_image( $post->ID ) && wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) { |
| 1554 | $nonce = wp_create_nonce( "image_editor-$post->ID" ); |
| 1555 | $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>"; |
| 1556 | } |
| 1557 | |
| 1558 | $attachment_url = get_permalink( $attachment_id ); |
| 1559 | |
| Line | Code |
| 1790 | $form_fields['post_title'], |
| 1791 | $form_fields['post_excerpt'], |
| 1792 | $form_fields['post_content'], |
| 1793 | $form_fields['url'], |
| 1794 | $form_fields['menu_order'], |
| 1795 | $form_fields['image_url'] |
| 1796 | ); |
| 1797 | |
| 1798 | /** This filter is documented in wp-admin/includes/media.php */ |
| 1799 | $media_meta = apply_filters( 'media_meta', '', $post ); |
| 1800 | |
| 1801 | $defaults = array( |
| 1802 | 'input' => 'text', |
| 1803 | 'required' => false, |
| 1804 | 'value' => '', |
| 1805 | 'extra_rows' => array(), |
| 1806 | 'show_in_edit' => true, |
| 1807 | 'show_in_modal' => true, |
| 1808 | ); |
| Line | Code |
| 3059 | $file = get_attached_file( $post->ID ); |
| 3060 | $filename = esc_html( wp_basename( $file ) ); |
| 3061 | |
| 3062 | $media_dims = ''; |
| 3063 | $meta = wp_get_attachment_metadata( $post->ID ); |
| 3064 | if ( isset( $meta['width'], $meta['height'] ) ) { |
| 3065 | $media_dims .= "<span id='media-dims-$post->ID'>{$meta['width']} × {$meta['height']}</span> "; |
| 3066 | } |
| 3067 | /** This filter is documented in wp-admin/includes/media.php */ |
| 3068 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 3069 | |
| 3070 | $att_url = wp_get_attachment_url( $post->ID ); |
| 3071 | ?> |
| 3072 | <div class="misc-pub-section misc-pub-attachment"> |
| 3073 | <label for="attachment_url"><?php _e( 'File URL:' ); ?></label> |
| 3074 | <input type="text" class="widefat urlfield" readonly="readonly" name="attachment_url" id="attachment_url" value="<?php echo esc_attr( $att_url ); ?>" /> |
| 3075 | </div> |
| 3076 | <div class="misc-pub-section misc-pub-filename"> |
| 3077 | <?php _e( 'File name:' ); ?> <strong><?php echo $filename; ?></strong> |