Ticket #25280: 25280.3.diff

src/wp-includes/class.wp-scripts.php

@@ -461 +461 @@
         }
 
         /**
+         * Pass data to a script if the script has already been added.
+         *
+         * @since 4.8.0
+         * @access public
+         *
+         * @param string $handle
+         * @param string $object_name
+         * @param array $data
+         * @return bool
+         */
+        public function pass_data( $handle, $object_name, $data ) {
+
+                // Pass scalar values untouched; pass strings through html_entity_decode.
+                if ( is_scalar( $data ) ) {
+
+                        // Pass strings through html_entity_decode, pass other scalar untouched.
+                        if ( is_string( $data ) ) {
+                                $data = html_entity_decode( $data, ENT_QUOTES, 'UTF-8');
+                        }
+                } else {
+                        // Recurse over passed arrays. Cast objects to arrays.
+                        foreach ( (array) $data as $key => $value ) {
+
+                                // Pass scalar values untouched; pass strings through html_entity_decode.
+                                if ( is_scalar( $value ) ) {
+
+                                        // Pass strings through html_entity_decode, pass other scalar values untouched.
+                                        if ( is_string( $value ) ) {
+                                                $data[ $key ] = html_entity_decode( $value, ENT_QUOTES, 'UTF-8');
+                                        } else {
+                                                $data[$key] = $value;
+                                        }
+                                } else {
+
+                                        $data = $this->entity_decode_array_values( $data );
+                                }
+                        }
+                }
+
+                $script = "var $object_name = " . wp_json_encode( $data ) . ';';
+
+                if ( ! empty( $after ) )
+                        $script .= "\n$after;";
+
+                $data = $this->get_data( $handle, 'data' );
+
+                if ( ! empty( $data ) )
+                        $script = "$data\n$script";
+
+                return $this->add_data( $handle, 'data', $script );
+        }
+
+        /**
+        * Handles recursively HTML entity decoding multi-dimensional array values.
+        *
+        * @since 4.8.0
+        *
+        * @param  array $data_array Array of data which should be decoded.
+        *
+        * @return array Array with decoded values.
+        */
+        public function entity_decode_array_values( $data_array ) {
+
+                // Begin a new array so that non-decoded values do not get added.
+                $data = array();
+
+                foreach ( (array) $data_array as $key => $value ) {
+                        if ( is_array( $value ) ) {
+                                $data[ $key ] = $this->entity_decode_array_values( $value );
+                        }
+
+                        // Non-array, non-scalar values should not be added.
+                        if ( ! is_scalar( $value ) ) {
+                                continue;
+                        }
+
+                        // Pass strings through html_entity_decode, pass other scalar untouched.
+                        if ( is_string( $value ) ) {
+                                $data[ $key ] = html_entity_decode( $value, ENT_QUOTES, 'UTF-8');
+                        } else {
+                                $data[ $key ] = $value;
+                        }
+                }
+
+                return $data;
+        }
+
+        /**
          * Sets handle group.
          *
          * @since 2.8.0

src/wp-includes/functions.wp-scripts.php

@@ -193 +193 @@
 }
 
 /**
+ * Pass data from PHP to a registered JavaScript file.
+ *
+ * Accepts a scalar value or and associative array and creates a JavaScript object.
+ *
+ * @since 4.8.0
+ *
+ * @param string $handle      Script handle the data will be attached to.
+ * @param string $object_name Name for the JavaScript object. Passed directly, so it should be qualified JS variable.
+ * @param array  $data        The data itself. The data can be either a scalar value, or a single or multi-dimensional array.
+ *
+ * @return bool True if the script was successfully localized, false otherwise.
+ */
+function wp_pass_data_to_script( $handle, $object_name, $data ) {
+        global $wp_scripts;
+        if ( ! ( $wp_scripts instanceof WP_Scripts ) ) {
+                _wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
+                return false;
+        }
+
+        return $wp_scripts->pass_data( $handle, $object_name, $data );
+}
+
+/**
  * Remove a registered script.
  *
  * Note: there are intentional safeguards in place to prevent critical admin scripts,

tests/phpunit/tests/dependencies/scripts.php

@@ -724 +724 @@
 
                 $this->assertEquals( $expected, get_echo( 'wp_print_scripts' ) );
         }
+
+        /**
+         * Testing `wp_pass_data_to_script` with scalar and array values.
+         * @ticket 25280
+         */
+        function test_wp_pass_data_to_script_with_scalar_and_multidimensional_arrays() {
+                // Enqueue & localize variables
+                wp_enqueue_script( 'test-l10n-data', 'example.com', array(), null );
+                wp_pass_data_to_script( 'test-l10n-data', 'data', true );
+
+                $test_array = array( 'var' => 'string' );
+                wp_pass_data_to_script( 'test-l10n-data', 'dataArray', $test_array );
+
+                $test_multidimensional = array(
+                        'first-level' => array(
+                                'second-level' => array(
+                                        'index' => "I'll \"walk\" the <b>dog</b> now",
+                                ),
+                        ),
+                );
+                wp_pass_data_to_script( 'test-l10n-data', 'dataMultiDimensionalArray', $test_multidimensional );
+
+
+                // Boolean output.
+                $expected = "var data = true;\n";
+                // One-dimensional array output.
+                $expected .= "var dataArray = {\"var\":\"string\"};\n";
+                // Multi-dimensional array output with odd characters.
+                $string = '\"walk\"';
+                $expected .= "var dataMultiDimensionalArray = {\"first-level\":{\"second-level\":{\"index\":\"I'll " .
+                        $string . " the <b>dog<\/b> now\"}}};\n";
+                // var script wrapper output
+                $expected = "<script type='text/javascript'>\n/* <![CDATA[ */\n$expected/* ]]> */\n</script>\n";
+                // script link output
+                $expected .= "<script type='text/javascript' src='http://example.com'></script>\n";
+                $this->assertEquals( $expected, get_echo( 'wp_print_scripts' ) );
+                // No scripts left to print
+                $this->assertEquals( '', get_echo( 'wp_print_scripts' ) );
+        }
+
+        /**
+         * Test passing data to scripts via `wp_pass_data_to_script`.
+         *
+         * @ticket 25280
+         */
+        function test_wp_pass_data_to_script_doesnt_convert_types_unexpectedly() {
+                global $wp_scripts;
+                $array_to_pass = array(
+                        'a_string'  => __( 'Some String' ),
+                        'a_number'  => 10,
+                        'a_boolean' => true,
+                );
+                wp_enqueue_script( 'localize_test','localize_script.js', array(), '1.0.0', true );
+                wp_pass_data_to_script( 'localize_test', 'localized_variable', $array_to_pass );
+                $this->assertEquals(
+                        'var localized_variable = {"a_string":"Some String","a_number":10,"a_boolean":true};',
+                        $wp_scripts->print_extra_script( 'localize_test', false )
+                );
+        }
 }