WP_Customize_Manager::is_preview() – Method

Determines whether it is a theme preview or not.

Return

bool True if it’s a preview, false if not.

public function is_preview() {
	return (bool) $this->previewing;
}

Used by	Description
WP_Customize_Manager::handle_override_changeset_lock_request()`wp-includes/class-wp-customize-manager.php`	Removes changeset lock when take over request is sent via Ajax.
WP_Customize_Manager::handle_dismiss_autosave_or_lock_request()`wp-includes/class-wp-customize-manager.php`	Deletes a given auto-draft changeset or the autosave revision for a given changeset or delete changeset lock.
WP_Customize_Manager::handle_changeset_trash_request()`wp-includes/class-wp-customize-manager.php`	Handles request to trash a changeset.
WP_Customize_Manager::refresh_nonces()`wp-includes/class-wp-customize-manager.php`	Refreshes nonces for the current preview.
WP_Customize_Manager::save()`wp-includes/class-wp-customize-manager.php`	Handles customize_save WP Ajax request to save/update a changeset.
WP_Customize_Manager::start_previewing_theme()`wp-includes/class-wp-customize-manager.php`	If the theme to be previewed isn’t the active theme, add filter callbacks to swap it out at runtime.
WP_Customize_Manager::stop_previewing_theme()`wp-includes/class-wp-customize-manager.php`	Stops previewing the selected theme.
WP_Customize_Manager::wp_loaded()`wp-includes/class-wp-customize-manager.php`	Registers styles/scripts and initialize the preview of each setting
WP_Customize_Manager::wp_redirect_status()`wp-includes/class-wp-customize-manager.php`	Prevents Ajax requests from following redirects when previewing a theme by issuing a 200 response instead of a 30x.

Version	Description
3.4.0	Introduced.