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129 lines
2.8 KiB
PHTML

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