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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 |
|---|---|
| 1906 | } elseif ( wp_attachment_is_image( $post->ID ) ) { |
| 1907 | // We have an image without a thumbnail. |
| 1908 | |
| 1909 | $src = wp_get_attachment_url( $post->ID ); |
| 1910 | $src_file = & $file; |
| 1911 | } elseif ( $src = wp_mime_type_icon( $post->ID ) ) { |
| 1912 | // No thumb, no image. We'll look for a mime-related icon instead. |
| 1913 | |
| 1914 | /** This filter is documented in wp-includes/post.php */ |
| 1915 | $icon_dir = apply_filters( 'icon_dir', get_template_directory() . '/images' ); |
| 1916 | $src_file = $icon_dir . '/' . wp_basename($src); |
| 1917 | } |
| 1918 | |
| 1919 | if ( !isset($src) || !$src ) |
| 1920 | return false; |
| 1921 | |
| 1922 | return array($src, $src_file); |
| 1923 | } |
| 1924 | |