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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 |
|---|---|
| 41 | if ( isset($_GET['type']) ) |
| 42 | $type = strval($_GET['type']); |
| 43 | else |
| 44 | $type = apply_filters('media_upload_default_type', 'file'); |
| 45 | |
| 46 | // tab: gallery, library, or type-specific |
| 47 | if ( isset($_GET['tab']) ) |
| 48 | $tab = strval($_GET['tab']); |
| 49 | else |
| 50 | $tab = apply_filters('media_upload_default_tab', 'type'); |
| 51 | |
| 52 | $body_id = 'media-upload'; |
| 53 | |
| 54 | // let the action code decide how to handle the request |
| 55 | if ( $tab == 'type' || $tab == 'type_url' || ! array_key_exists( $tab , media_upload_tabs() ) ) |
| 56 | do_action("media_upload_$type"); |
| 57 | else |
| 58 | do_action("media_upload_$tab"); |
| 59 | |