file, array( $this, 'uninstall' ) );
}
function page_init() {
if ( !isset( $this->args['columns'] ) )
$this->args['columns'] = 2;
parent::page_init();
add_action( 'load-' . $this->pagehook, array( $this, 'boxes_init' ) );
}
function default_css() {
?>
default_css();
global $screen_layout_columns;
if ( isset( $screen_layout_columns ) ) {
$hide2 = $hide3 = $hide4 = '';
switch ( $screen_layout_columns ) {
case 4:
if( !isset( $this->args['column_widths'] ) )
$this->args['column_widths'] = array( 24.5, 24.5, 24.5, 24.5 );
break;
case 3:
if( !isset( $this->args['column_widths'] ) )
$this->args['column_widths'] = array( 32.67, 32.67, 32.67 );
$hide4 = 'display:none;';
break;
case 2:
if( !isset( $this->args['column_widths'] ) )
$this->args['column_widths'] = array( 49, 49 );
$hide3 = $hide4 = 'display:none;';
break;
default:
if( !isset( $this->args['column_widths'] ) )
$this->args['column_widths'] = array( 98 );
$hide2 = $hide3 = $hide4 = 'display:none;';
}
$this->args['column_widths'] = array_pad( $this->args['column_widths'], 4, 0 );
}
?>
args['column_widths'][0]}%'>\n";
do_meta_boxes( $this->pagehook, 'normal', '' );
echo "\t
\n";
do_meta_boxes( $this->pagehook, 'side', '' );
echo "\t
\n";
do_meta_boxes( $this->pagehook, 'column3', '' );
echo "\t
\n";
do_meta_boxes( $this->pagehook, 'column4', '' );
?>
_boxes_js_init();
}
function form_handler() {
if ( empty( $_POST ) )
return;
check_admin_referer( $this->nonce );
// Box handler
foreach ( $this->boxes as $box ) {
$args = isset( $box[4] ) ? $box[4] : array();
$handler = $box[0] . '_handler';
if ( method_exists( $this, $handler ) )
call_user_func_array( array( $this, $handler ), $args );
}
}
function uninstall() {
global $wpdb;
$hook = str_replace( '-', '', $this->pagehook );
foreach ( array( 'metaboxhidden', 'closedpostboxes', 'wp_metaboxorder', 'screen_layout' ) as $option )
$keys[] = "'{$option}_{$hook}'";
$keys = '( ' . implode( ', ', $keys ) . ' )';
$wpdb->query( "
DELETE FROM {$wpdb->usermeta}
WHERE meta_key IN {$keys}
" );
}
function boxes_init() {
wp_enqueue_script( 'postbox' );
add_screen_option( 'layout_columns', array(
'max' => $this->args['columns'],
'default' => $this->args['columns']
) );
$registered = array();
foreach ( $this->boxes as $box_args ) {
foreach ( array( 'name', 'title', 'context', 'priority', 'args' ) as $i => $arg ) {
if ( isset( $box_args[$i] ) )
$$arg = $box_args[$i];
}
if ( empty( $title ) )
$title = ucfirst( $name );
if ( empty( $context ) )
$context = 'normal';
if ( empty( $priority ) )
$priority = 'default';
if ( empty( $args ) )
$args = array();
if ( isset( $registered[$name] ) ) {
if ( empty( $args ) )
trigger_error( "Duplicate box name: $name", E_USER_NOTICE );
$name = $this->_increment( $name );
} else {
$registered[$name] = true;
}
add_meta_box( $name, $title, array( $this, '_intermediate_callback' ), $this->pagehook, $context, $priority, $args );
}
}
// Make it so that $args is actually what's passed to the callback
function _intermediate_callback( $_, $box ) {
list( $name ) = explode( '-', $box['id'] );
call_user_func_array( array( $this, $name . '_box' ), $box['args'] );
}
private function _increment( $name ) {
$parts = explode( '-', $name );
if ( isset( $parts[1] ) )
$parts[1]++;
else
$parts[1] = 2;
return implode( '-', $parts );
}
}
?>