WP hooks navigation: Home/browse • Actions index • Filters index
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 |
|---|---|
| 892 | global $wp_meta_boxes; |
| 893 | |
| 894 | if ( is_bool( $this->_show_screen_options ) ) |
| 895 | return $this->_show_screen_options; |
| 896 | |
| 897 | $columns = get_column_headers( $this ); |
| 898 | |
| 899 | $show_screen = ! empty( $wp_meta_boxes[ $this->id ] ) || $columns || $this->get_option( 'per_page' ); |
| 900 | |
| 901 | $this->_screen_settings = apply_filters( 'screen_settings', '', $this ); |
| 902 | |
| 903 | switch ( $this->id ) { |
| 904 | case 'widgets': |
| 905 | $this->_screen_settings = '<p><a id="access-on" href="widgets.php?widgets-access=on">' . __('Enable accessibility mode') . '</a><a id="access-off" href="widgets.php?widgets-access=off">' . __('Disable accessibility mode') . "</a></p>\n"; |
| 906 | break; |
| 907 | } |
| 908 | |
| 909 | if ( $this->_screen_settings || $this->_options ) |
| 910 | $show_screen = true; |