Method setupUninstall

/**
 * Method to do any prechecks and setup the uninstall job
 *
 * @return  void
 *
 * @since   4.0.0
 */
protected function setupUninstall()
{
    // Get the admin and site paths for the component
    $this->parent->setPath('extension_administrator', Path::clean(JPATH_ADMINISTRATOR . '/components/' . $this->extension->element));
    $this->parent->setPath('extension_api', Path::clean(JPATH_API . '/components/' . $this->extension->element));
    $this->parent->setPath('extension_site', Path::clean(JPATH_SITE . '/components/' . $this->extension->element));
    // Copy the admin path as it's used as a common base
    $this->parent->setPath('extension_root', $this->parent->getPath('extension_administrator'));
    // Find and load the XML install file for the component
    $this->parent->setPath('source', $this->parent->getPath('extension_administrator'));
    // Get the package manifest object
    // We do findManifest to avoid problem when uninstalling a list of extension: getManifest cache its manifest file
    $this->parent->findManifest();
    $this->setManifest($this->parent->getManifest());
    if (!$this->getManifest()) {
        // Make sure we delete the folders if no manifest exists
        Folder::delete($this->parent->getPath('extension_administrator'));
        Folder::delete($this->parent->getPath('extension_api'));
        Folder::delete($this->parent->getPath('extension_site'));
        // Remove the menu
        $this->_removeAdminMenus($this->extension->extension_id);
        // Raise a warning
        throw new \RuntimeException(Text::_('JLIB_INSTALLER_ERROR_COMP_UNINSTALL_ERRORREMOVEMANUALLY'));
    }
    // Attempt to load the admin language file; might have uninstall strings
    $this->loadLanguage(JPATH_ADMINISTRATOR . '/components/' . $this->extension->element);
}