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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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.
| Line | Code |
|---|---|
| 425 | } elseif ( wp_attachment_is_image( $post->ID ) ) { |
| 426 | // We have an image without a thumbnail |
| 427 | |
| 428 | $src = wp_get_attachment_url( $post->ID ); |
| 429 | $src_file = & $file; |
| 430 | $class = 'attachmentimage'; |
| 431 | } elseif ( $src = wp_mime_type_icon( $post->ID ) ) { |
| 432 | // No thumb, no image. We'll look for a mime-related icon instead. |
| 433 | |
| 434 | $icon_dir = apply_filters( 'icon_dir', get_template_directory() . '/images' ); |
| 435 | $src_file = $icon_dir . '/' . basename($src); |
| 436 | } |
| 437 | |
| 438 | if ( !isset($src) || !$src ) |
| 439 | return false; |
| 440 | |
| 441 | return array($src, $src_file); |
| 442 | } |
| 443 | |