options = &$polylang->options;
$this->model = &$polylang->model;
$this->links_model = &$polylang->links_model;
$args = wp_parse_args(
$args,
array(
'title' => '',
'description' => '',
'active_option' => false,
)
);
foreach ( $args as $prop => $value ) {
$this->$prop = $value;
}
// All possible action links, even if not always a link ;-)
$this->action_links = array(
'configure' => sprintf(
'%s',
esc_attr__( 'Configure this module', 'polylang' ),
'#',
esc_html__( 'Settings', 'polylang' )
),
'deactivate' => sprintf(
'%s',
esc_attr__( 'Deactivate this module', 'polylang' ),
esc_url( wp_nonce_url( '?page=mlang&tab=modules&pll_action=deactivate&noheader=true&module=' . $this->module, 'pll_deactivate' ) ),
esc_html__( 'Deactivate', 'polylang' )
),
'activate' => sprintf(
'%s',
esc_attr__( 'Activate this module', 'polylang' ),
esc_url( wp_nonce_url( '?page=mlang&tab=modules&pll_action=activate&noheader=true&module=' . $this->module, 'pll_activate' ) ),
esc_html__( 'Activate', 'polylang' )
),
'activated' => esc_html__( 'Activated', 'polylang' ),
'deactivated' => esc_html__( 'Deactivated', 'polylang' ),
);
$this->buttons = array(
'cancel' => sprintf( '', esc_html__( 'Cancel', 'polylang' ) ),
'save' => sprintf( '', esc_html__( 'Save Changes', 'polylang' ) ),
);
// Ajax action to save options
add_action( 'wp_ajax_pll_save_options', array( $this, 'save_options' ) );
}
/**
* Tells if the module is active
*
* @since 1.8
*
* @return bool
*/
public function is_active() {
return empty( $this->active_option ) || ! empty( $this->options[ $this->active_option ] );
}
/**
* Activates the module
*
* @since 1.8
*/
public function activate() {
if ( ! empty( $this->active_option ) ) {
$this->options[ $this->active_option ] = true;
update_option( 'polylang', $this->options );
}
}
/**
* Deactivates the module
*
* @since 1.8
*/
public function deactivate() {
if ( ! empty( $this->active_option ) ) {
$this->options[ $this->active_option ] = false;
update_option( 'polylang', $this->options );
}
}
/**
* Protected method to display a configuration form
*
* @since 1.8
*/
protected function form() {
// Child classes can provide a form
}
/**
* Public method returning the form if any
*
* @since 1.8
*
* @return string
*/
public function get_form() {
// Read the form only once
if ( false === $this->form ) {
ob_start();
$this->form();
$this->form = ob_get_clean();
}
return $this->form;
}
/**
* Allows child classes to validate their options before saving
*
* @since 1.8
*
* @param array $options Raw options
* @return array Options
*/
protected function update( $options ) {
return array(); // It's responsibility of the child class to decide what is saved
}
/**
* Ajax method to save the options
*
* @since 1.8
*/
public function save_options() {
check_ajax_referer( 'pll_options', '_pll_nonce' );
if ( ! current_user_can( 'manage_options' ) ) {
wp_die( -1 );
}
if ( isset( $_POST['module'] ) && $this->module === $_POST['module'] ) {
// It's up to the child class to decide which options are saved, whether there are errors or not
$post = array_diff_key( $_POST, array_flip( array( 'action', 'module', 'pll_ajax_backend', '_pll_nonce' ) ) );
$options = $this->update( $post );
$this->options = array_merge( $this->options, $options );
update_option( 'polylang', $this->options );
// Refresh language cache in case home urls have been modified
$this->model->clean_languages_cache();
// Refresh rewrite rules in case rewrite, hide_default, post types or taxonomies options have been modified
// Don't use flush_rewrite_rules as we don't have the right links model and permastruct
delete_option( 'rewrite_rules' );
ob_start();
if ( ! get_settings_errors() ) {
// Send update message
add_settings_error( 'general', 'settings_updated', __( 'Settings saved.', 'polylang' ), 'updated' );
settings_errors();
$x = new WP_Ajax_Response( array( 'what' => 'success', 'data' => ob_get_clean() ) );
$x->send();
} else {
// Send error messages
settings_errors();
$x = new WP_Ajax_Response( array( 'what' => 'error', 'data' => ob_get_clean() ) );
$x->send();
}
}
}
/**
* Get the row actions
*
* @since 1.8
*
* @return array
*/
protected function get_actions() {
$actions = array();
if ( $this->is_active() && $this->get_form() ) {
$actions[] = 'configure';
}
if ( $this->active_option ) {
$actions[] = $this->is_active() ? 'deactivate' : 'activate';
}
if ( empty( $actions ) ) {
$actions[] = $this->is_active() ? 'activated' : 'deactivated';
}
return $actions;
}
/**
* Get the actions links
*
* @since 1.8
*
* @return array
*/
public function get_action_links() {
return array_intersect_key( $this->action_links, array_flip( $this->get_actions() ) );
}
/**
* Default upgrade message ( to Pro version )
*
* @since 1.9
*
* @return string
*/
protected function default_upgrade_message() {
return sprintf(
'%s %s',
__( 'To enable this feature, you need Polylang Pro.', 'polylang' ),
'https://polylang.pro',
__( 'Upgrade now.', 'polylang' )
);
}
/**
* Allows child classes to display an upgrade message
*
* @since 1.9
*
* @return string
*/
public function get_upgrade_message() {
return '';
}
/**
* Get the buttons
*
* @since 1.9
*
* @return array
*/
public function get_buttons() {
return $this->buttons;
}
}