= 0) {
global $pagenow;
if (is_admin() && in_array($pagenow, array('post.php', 'post-new.php'))) {
add_action('admin_head', array($this, 'admin_head'));
add_action('admin_footer', array($this, 'admin_footer'));
add_action('admin_enqueue_scripts', array($this, 'admin_scripts'));
}
}
}
public function activate() {
global $wpdb;
if ($wpdb->get_results(sprintf("SELECT * FROM %s WHERE option_name = '_site_transient_update_plugins' AND option_value LIKE '%%three-column-screen-layout%%';", $wpdb->options))) {
$wpdb->query(sprintf("UPDATE %s SET meta_value = replace(meta_value, 's:8:\"advanced\"', 's:5:\"side3\"') WHERE meta_key LIKE 'meta-box-order_%%';", $wpdb->usermeta));
}
}
public function deactivate() {
global $wpdb;
$wpdb->query(sprintf("UPDATE %s SET meta_value = replace(meta_value, 's:5:\"side3\"', 's:6:\"normal\"'), meta_value = replace(meta_value, 's:5:\"side4\"', 's:6:\"normal\"') WHERE meta_key LIKE 'meta-box-order_%%';", $wpdb->usermeta));
}
public function admin_head() {
ob_start();
add_screen_option('layout_columns', array('max'=>24, 'default'=>2));
}
public function admin_footer() {
$this->splice_columns(ob_get_clean());
}
public function admin_scripts() {
wp_enqueue_style('Three_Column_Screen_Layout-style', plugins_url('/style.min.css?v=4.2', __FILE__));
}
protected function create_metabox($i) {
global $post_type;
global $post;
ob_start();
$name = sprintf('side%d', $i);
do_action('do_meta_boxes', $post_type, $name, $post);
do_meta_boxes($post_type, $name, $post);
return sprintf('%s
', $i, ob_get_clean());
}
protected function splice_columns($content) {
$pref_start = strpos($content, 'class="screen-layout"');
$pref_end = strpos($content, 'id="screenoptionnonce"', $pref_start);
$postbody_start = strpos($content, 'id="post-body"', $pref_start);
$columns_start = strpos($content, 'metabox-holder columns-', $postbody_start) + 23;
$container_start = strpos($content, ')[^<]*()[\r\n\s]+[^<]*[\s]+(<\/label>)\s*/', '$1$2', $pref_new);
if ($pref_new != $pref_old) {
$content = substr_replace($content, $this->create_metabox(3).$this->create_metabox(4), $container_start, 0);
$content = substr_replace($content, $pref_val, $columns_start, 1);
$content = substr_replace($content, $pref_new, $pref_start, $pref_end - $pref_start);
}
}
echo $content;
}
}
$Three_Column_Screen_Layout = new Three_Column_Screen_Layout();
}
?>