/**
* Function used to create instance of class.
*/
public static function instance()
{
if (is_null(self::$_instance)) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
* This function determines whether the current sidebar is rendered on the front-end.
*/
public function active_callback()
{
// Grab the Note Sidebars instance
$note_sidebars = Note_Sidebars();
// If we have a valid array of sidebars
if (is_array($note_sidebars->sidebars)) {
// Loop through posts
foreach ($note_sidebars->sidebars as $post_id => $note_sidebar_ids) {
// Loop through Note Sidebar IDs
foreach ($note_sidebar_ids as $sidebar_id) {
// Note Sidebar arguments for this sidebar
$sidebar_args = Note_Sidebars::note_sidebar_args($sidebar_id, $post_id, false);
// Generate a section ID
$section_id = $this->section_prefix . Note_Sidebars::get_sidebar_arg('id', $sidebar_args);
// If this sidebar ID matches the section ID, it is rendered on the front-end
if ($this->id === $section_id) {
return true;
}
}
}
}
// Otherwise, the sidebar is not rendered on the front-end
return false;
}
/**
* This function runs after the WP and WP_Query objects are set up.
*/
function wp()
{
// Bail if lower than WordPress 4.1
if (Note::wp_version_compare('4.1', '<')) {
return;
}
// Note Sidebars (single content types only or if filter returns true)
if (is_singular() || apply_filters('note_customizer_localize_sidebar_args', false, $this)) {
// Grab Note Sidebar Customizer arguments (keep Customizer Sections/Controls active for Previewer)
$this->note_sidebar_args = Note_Sidebars::get_customizer_sidebar_args(true);
// Note Sidebar args
if (!isset($this->note_localize['sidebars'])) {
$this->note_localize['sidebars'] = array();
}
$this->note_localize['sidebars']['args'] = apply_filters('note_localize_sidebar_args', $this->note_sidebar_args, $this);
/*
* Inactive Widgets
*
* WordPress does not create controls for inactive widgets, but we need those controls
* because sidebars can be removed and added/re-added dynamically. Only do this in the
* Customizer and only do this for Note Sidebars.
*/
$this->register_inactive_note_widgets(true);
}
}
$note_options = Note_Options::get_options();
// Remove Note data upon uninstall
if ($note_options['uninstall']['data']) {
// Widgets grouped by sidebar
$sidebars_widgets = wp_get_sidebars_widgets();
if (empty($sidebars_widgets)) {
$sidebars_widgets = wp_get_widget_defaults();
}
// Unregister Note Sidebars
if (is_array($note_options['sidebars'])) {
// Loop through posts
foreach ($note_options['sidebars'] as $post_id => $note_sidebar_ids) {
// Loop through Note Sidebar IDs
foreach ($note_sidebar_ids as $sidebar_id) {
// Find the Note Sidebar ID for this sidebar
$note_sidebar_id = Note_Sidebars::get_sidebar_id($sidebar_id, $post_id);
// Remove this sidebar if it was found in sidebars widgets
if (isset($sidebars_widgets[$note_sidebar_id])) {
unset($sidebars_widgets[$note_sidebar_id]);
}
}
}
// Update the sidebars/widgets
wp_set_sidebars_widgets($sidebars_widgets);
}
// Grab an instance of the Note Widget and remove the settings
$note_widget = Note_Widget();
delete_option($note_widget->option_name);
// Delete the Note option
delete_option(Note_Options::$option_name);
}