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<?php |
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|
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class PostLockdown_AdminNotice { |
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/** Query arg used to determine if an admin notice should be displayed. */ |
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const QUERY_ARG = 'plstatuschange'; |
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|
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private $plugin_path; |
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|
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public function __construct( $plugin_path ) { |
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$this->plugin_path = $plugin_path; |
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add_action( 'admin_notices', array( $this, '_output_admin_notices' ) ); |
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add_filter( 'removable_query_args', array( $this, '_remove_query_arg' ) ); |
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} |
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|
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/** |
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* Filter for the 'redirect_post_location' hook. |
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* @see PostLockdown::_prevent_status_change() |
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* |
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* @param string $location |
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* @return string |
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*/ |
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public function _add_query_arg( $location ) { |
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return add_query_arg( self::QUERY_ARG, 1, $location ); |
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} |
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|
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/** |
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* Filter for the 'removable_query_args' hook. |
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* |
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* Adds the plugin's query arg to the array of args |
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* removed by WordPress using the JavaScript History API. |
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* @param array $args Array of query args to be removed. |
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* @return array |
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*/ |
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public function _remove_query_arg( $args ) { |
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$args[] = self::QUERY_ARG; |
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|
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return $args; |
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} |
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|
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/** |
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* Callback for the 'admin_notices' hook. |
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* |
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* Outputs the plugin's admin notices if there are any. |
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*/ |
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public function _output_admin_notices() { |
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$notices = array(); |
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|
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if ( ! empty( $_GET[ self::QUERY_ARG ] ) ) { |
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$notices[] = array( |
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'class' => 'error', |
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'message' => __( 'This post is protected by Post Lockdown and must stay published.', 'postlockdown' ), |
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); |
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} |
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|
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if ( ! empty( $notices ) ) { |
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include_once( $this->plugin_path . 'view/admin-notices.php' ); |
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} |
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} |
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} |
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|
