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<?php |
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|
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// If this file is called directly, abort. |
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if ( ! defined( 'WPINC' ) ) { |
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die; |
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} |
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|
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|
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/** |
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* wpLingua translate : Get translated JS |
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* |
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* This function translates JavaScript code containing JSON objects. |
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* It uses regex to find JavaScript variables and translates the JSON part. |
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* |
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* @param string $js The JavaScript code to translate. |
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* @param array $args Additional arguments for translation processing. |
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* @return string The translated JavaScript code. |
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*/ |
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function wplng_translate_js( $js, $args = array() ) { |
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|
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// Return early if the provided JavaScript is empty |
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// or consists only of whitespace |
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// Or is the wp emoji script |
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if ( empty( trim( $js ) ) |
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|| wplng_str_contains( $js, '_wpemojiSettings' ) |
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) { |
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return $js; |
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} |
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|
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$js = wplng_translate_js_json_in_var( $js, $args ); |
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$js = wplng_translate_js_json_encoded_as_url( $js, $args ); |
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$js = wplng_translate_js_json_in_function_call( $js, $args ); |
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|
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if ( wplng_str_is_script_i18n( $js ) ) { |
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$js = wplng_translate_js_json_in_i18n_script( $js, $args ); |
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} |
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|
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return $js; // Return the translated JavaScript |
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} |
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|
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|
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/** |
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* Translate JSON contained in 'var', 'let' or 'window._' |
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* |
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* @param string $js The JavaScript code to translate. |
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* @param array $args Additional arguments for translation processing. |
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* @return string The translated JavaScript code. |
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*/ |
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function wplng_translate_js_json_in_var( $js, $args = array() ) { |
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|
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// Array to hold matched JSON objects |
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$json = array(); |
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|
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preg_match_all( |
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'#(var\s|let\s|window\._)([A-Za-z0-9_]+)\s?=\s?(\{(?:[^{}"\'\\\\]+|"(?:\\\\.|[^"\\\\])*"|\'(?:\\\\.|[^\'\\\\])*\'|(?3))*\}|\[(?:[^\[\]"\'\\\\]+|"(?:\\\\.|[^"\\\\])*"|\'(?:\\\\.|[^\'\\\\])*\'|(?3))*\])\s*;#Us', |
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$js, |
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$json |
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); |
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|
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if ( ! empty( $json[2] ) && is_array( $json[2] ) ) { |
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foreach ( $json[2] as $key => $var_name ) { |
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|
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$var_name = trim( $var_name ); |
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|
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if ( empty( $var_name ) || empty( $json[3][ $key ] ) ) { |
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continue; |
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} |
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|
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// Get the JSON string |
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$var_json = trim( $json[3][ $key ] ); |
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|
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// Prepare arguments for translation |
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wplng_args_setup( $args ); |
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$args['parents'] = array( $var_name ); |
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|
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// Translate the JSON string |
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$json_translated = wplng_translate_json( |
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$var_json, |
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$args |
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); |
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|
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// Replace the original JSON with the translated version if different |
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if ( $var_json !== $json_translated ) { |
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$js = str_replace( |
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$var_json, |
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$json_translated, |
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$js |
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); |
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} |
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} |
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} |
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|
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return $js; // Return the translated JavaScript |
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} |
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|
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|
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/** |
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* Translate JSON in i18n script |
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* |
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* You can use wplng_parse_js_json_in_i18n_script( $js ) |
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* to check if the string is a i18n script |
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* |
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* @param string $js The JavaScript code to translate. |
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* @param array $args Additional arguments for translation processing. |
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* @return string The translated JavaScript code. |
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*/ |
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function wplng_translate_js_json_in_i18n_script( $js, $args = array() ) { |
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|
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$json = array(); |
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|
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preg_match_all( |
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'#\(\s?["\'](.*)["\'],\s?(.*)\s?\);#Ui', |
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$js, |
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$json |
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); |
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|
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if ( ! empty( $json[1] ) && is_array( $json[1] ) ) { |
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foreach ( $json[1] as $key => $var_name ) { |
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|
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$var_name = trim( $var_name ); |
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|
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if ( empty( $var_name ) || empty( $json[2][ $key ] ) ) { |
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continue; |
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} |
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|
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$var_json = trim( $json[2][ $key ] ); |
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|
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// Prepare arguments for translation |
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wplng_args_setup( $args ); |
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$args['parents'] = array( 'i18n_script', $var_name ); |
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|
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// Translate the JSON string |
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$json_translated = wplng_translate_json( |
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$var_json, |
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$args |
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); |
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|
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// Replace the original JSON with the translated version if different |
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if ( $var_json !== $json_translated ) { |
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$js = str_replace( |
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$var_json, |
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$json_translated, |
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$js |
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); |
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} |
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} |
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} |
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|
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return $js; // Return the translated JavaScript |
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} |
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|
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|
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/** |
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* Translate JSON encoded as URL |
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* |
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* @param string $js The JavaScript code to translate. |
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* @param array $args Additional arguments for translation processing. |
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* @return string The translated JavaScript code. |
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*/ |
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function wplng_translate_js_json_encoded_as_url( $js, $args = array() ) { |
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|
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$json = array(); |
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|
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preg_match_all( |
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'#(var\s|let\s|window\._)([A-Za-z0-9_]+)\s?=\s?JSON\.parse\(\sdecodeURIComponent\(\s\'(.*)\'\s\)\s\)#Ui', |
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$js, |
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$json |
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); |
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|
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if ( ! empty( $json[2] ) && is_array( $json[2] ) ) { |
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foreach ( $json[2] as $key => $var_name ) { |
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|
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$var_name = trim( $var_name ); |
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|
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if ( empty( $var_name ) || empty( $json[3][ $key ] ) ) { |
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continue; |
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} |
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|
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$encoded_json = trim( $json[3][ $key ] ); |
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$var_json = urldecode( $encoded_json ); |
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|
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// Prepare arguments for translation |
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wplng_args_setup( $args ); |
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$args['parents'] = array( 'encoded_as_url', $var_name ); |
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|
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// Translate the JSON string |
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$json_translated = wplng_translate_json( |
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$var_json, |
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$args |
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); |
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|
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$json_translated = rawurlencode( $json_translated ); |
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|
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// Replace the original JSON with the translated version if different |
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if ( $encoded_json !== $json_translated ) { |
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$js = str_replace( |
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$encoded_json, |
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$json_translated, |
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$js |
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); |
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} |
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} |
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} |
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|
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return $js; // Return the translated JavaScript |
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} |
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|
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|
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/** |
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* Translate JSON passed as argument to function calls like jQuery.datepicker.setDefaults({...}) |
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* |
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* @param string $js The JavaScript code to translate. |
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* @param array $args Additional arguments for translation processing. |
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* @return string The translated JavaScript code. |
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*/ |
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function wplng_translate_js_json_in_function_call( $js, $args = array() ) { |
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|
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$json = array(); |
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|
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// Whitelist of function calls that contain translatable JSON |
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$allowed_functions = wplng_data_json_in_js_functions(); |
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|
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if ( empty( $allowed_functions ) ) { |
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return $js; |
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} |
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|
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preg_match_all( |
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'#([a-zA-Z_$][a-zA-Z0-9_$]*(?:\.[a-zA-Z_$][a-zA-Z0-9_$]*)+)\s*\(\s*(\{(?:[^{}"\'\\\\]+|"(?:\\\\.|[^"\\\\])*"|\'(?:\\\\.|[^\'\\\\])*\'|(?2))*\})\s*\)#Us', |
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$js, |
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$json |
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); |
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|
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if ( ! empty( $json[1] ) && is_array( $json[1] ) ) { |
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foreach ( $json[1] as $key => $func_name ) { |
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|
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$func_name = trim( $func_name ); |
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|
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// Skip if not in whitelist |
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if ( ! in_array( $func_name, $allowed_functions, true ) ) { |
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continue; |
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} |
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|
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if ( empty( $json[2][ $key ] ) ) { |
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continue; |
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} |
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|
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$var_json = trim( $json[2][ $key ] ); |
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|
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// Prepare arguments for translation |
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wplng_args_setup( $args ); |
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$args['parents'] = array( $func_name ); |
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|
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// Translate the JSON string |
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$json_translated = wplng_translate_json( |
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$var_json, |
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$args |
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); |
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|
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// Replace the original JSON with the translated version if different |
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if ( $var_json !== $json_translated ) { |
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$js = str_replace( |
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$var_json, |
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$json_translated, |
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$js |
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); |
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} |
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} |
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} |
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|
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return $js; // Return the translated JavaScript |
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} |
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|
