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129 lines
2.8 KiB
PHP
129 lines
2.8 KiB
PHP
<?php
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/**
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* The JSON manager handles json output to admin and frontend.
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*
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* @since 1.0.0
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* @package RankMath
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* @subpackage RankMath
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* @author RankMath <support@rankmath.com>
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*/
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namespace RankMath;
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/**
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* Json_Manager class.
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*/
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class Json_Manager {
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/**
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* Data.
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*
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* @var array
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*/
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private $data = [];
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/**
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* Construct
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*/
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public function __construct() {
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$hook = is_admin() ? 'admin_footer' : 'wp_footer';
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add_action( $hook, [ $this, 'output' ], 0 );
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}
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/**
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* Add something to JSON object.
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*
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* @param string $key Unique identifier.
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* @param mixed $value The data itself can be either a single or an array.
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* @param string $object_name Name for the JavaScript object. Passed directly, so it should be qualified JS variable.
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*/
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public function add( $key, $value, $object_name ) {
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if ( empty( $key ) ) {
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return;
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}
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// If key doesn't exists.
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if ( ! isset( $this->data[ $object_name ][ $key ] ) ) {
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$this->data[ $object_name ][ $key ] = $value;
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return;
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}
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// If key already exists.
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$old_value = $this->data[ $object_name ][ $key ];
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// If both array merge them.
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if ( is_array( $old_value ) && is_array( $value ) ) {
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$this->data[ $object_name ][ $key ] = array_merge( $old_value, $value );
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return;
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}
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$this->data[ $object_name ][ $key ] = $value;
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}
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/**
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* Remove something from JSON object.
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*
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* @param string $key Unique identifier.
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* @param string $object_name Name for the JavaScript object. Passed directly, so it should be qualified JS variable.
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*/
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public function remove( $key, $object_name ) {
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if ( isset( $this->data[ $object_name ][ $key ] ) ) {
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unset( $this->data[ $object_name ][ $key ] );
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}
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}
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/**
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* Print data.
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*/
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public function output() {
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$script = $this->encode();
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if ( ! $script ) {
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return;
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}
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echo "<script type='text/javascript'>\n"; // CDATA and type='text/javascript' is not needed for HTML 5.
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echo "/* <![CDATA[ */\n";
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echo "$script\n";
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echo "/* ]]> */\n";
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echo "</script>\n";
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}
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/**
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* Get encoded string.
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*
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* @return string
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*/
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private function encode() {
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$script = '';
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foreach ( $this->data as $object_name => $object_data ) {
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$script .= $this->single_object( $object_name, $object_data );
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}
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return $script;
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}
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/**
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* Encode single object.
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*
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* @param string $object_name Object name to use as JS variable.
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* @param array $object_data Object data to json encode.
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* @return array
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*/
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private function single_object( $object_name, $object_data ) {
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if ( empty( $object_data ) ) {
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return '';
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}
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foreach ( (array) $object_data as $key => $value ) {
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if ( ! is_string( $value ) ) {
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continue;
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}
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$object_data[ $key ] = html_entity_decode( (string) $value, ENT_QUOTES, 'UTF-8' );
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}
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return "var $object_name = " . wp_json_encode( $object_data ) . ';' . PHP_EOL;
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}
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}
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