96 lines
2.4 KiB
PHP
96 lines
2.4 KiB
PHP
<?php
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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}
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/**
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* WC_Deprecated_Hooks class maps old actions and filters to new ones. This is the base class for handling those deprecated hooks.
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*
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* Based on the WCS_Hook_Deprecator class by Prospress.
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*
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* @since 3.0.0
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*/
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abstract class WC_Deprecated_Hooks {
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/**
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* Array of deprecated hooks we need to handle.
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*
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* @var array
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*/
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protected $deprecated_hooks = array();
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/**
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* Constructor.
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*/
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public function __construct() {
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$new_hooks = array_keys( $this->deprecated_hooks );
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array_walk( $new_hooks, array( $this, 'hook_in' ) );
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}
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/**
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* Hook into the new hook so we can handle deprecated hooks once fired.
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*
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* @param string $hook_name
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*/
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abstract function hook_in( $hook_name );
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/**
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* Get old hooks to map to new hook.
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*
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* @param string $new_hook
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* @return array
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*/
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public function get_old_hooks( $new_hook ) {
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$old_hooks = isset( $this->deprecated_hooks[ $new_hook ] ) ? $this->deprecated_hooks[ $new_hook ] : array();
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$old_hooks = is_array( $old_hooks ) ? $old_hooks : array( $old_hooks );
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return $old_hooks;
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}
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/**
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* If the hook is Deprecated, call the old hooks here.
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*/
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public function maybe_handle_deprecated_hook() {
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$new_hook = current_filter();
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$old_hooks = $this->get_old_hooks( $new_hook );
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$new_callback_args = func_get_args();
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$return_value = $new_callback_args[0];
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foreach ( $old_hooks as $old_hook ) {
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$return_value = $this->handle_deprecated_hook( $new_hook, $old_hook, $new_callback_args, $return_value );
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}
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return $return_value;
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}
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/**
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* If the old hook is in-use, trigger it.
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*
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* @param string $new_hook
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* @param string $old_hook
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* @param array $new_callback_args
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* @param mixed $return_value
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* @return mixed
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*/
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abstract function handle_deprecated_hook( $new_hook, $old_hook, $new_callback_args, $return_value );
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/**
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* Display a deprecated notice for old hooks.
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*
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* @param string $old_hook
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* @param string $new_hook
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*/
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protected function display_notice( $old_hook, $new_hook ) {
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wc_deprecated_function( sprintf( 'The "%s" hook uses out of date data structures and', esc_html( $old_hook ) ), WC_VERSION, esc_html( $new_hook ) );
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}
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/**
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* Fire off a legacy hook with it's args.
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*
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* @param string $old_hook
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* @param array $new_callback_args
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* @return mixed
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*/
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abstract protected function trigger_hook( $old_hook, $new_callback_args );
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}
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