JS: libphonenumber v5.1.2 - AYTF fix

javascript/README

@@ -25,7 +25,7 @@ pages with your web browser:
 
 How to update:
 ==============
-The JavaScript library is ported from the Java implementation (revision 516).
+The JavaScript library is ported from the Java implementation (revision 524).
 When the Java project gets updated follow these steps to update the JavaScript
 project:
 

javascript/i18n/phonenumbers/asyoutypeformatter.js

@@ -358,7 +358,10 @@ i18n.phonenumbers.AsYouTypeFormatter.prototype.getAvailableFormats_ =
   for (var i = 0; i < formatListLength; ++i) {
     /** @type {i18n.phonenumbers.NumberFormat} */
     var format = formatList[i];
-    if (this.isCompleteNumber_ ||
+    /** @type {boolean} */
+    var nationalPrefixIsUsedByCountry =
+        this.currentMetaData_.hasNationalPrefix();
+    if (!nationalPrefixIsUsedByCountry || this.isCompleteNumber_ ||
         format.getNationalPrefixOptionalWhenFormatting() ||
         this.phoneUtil_.formattingRuleHasFirstGroupOnly(
             format.getNationalPrefixFormattingRule())) {

javascript/i18n/phonenumbers/asyoutypeformatter_test.js

@@ -1105,6 +1105,17 @@ function testAYTFShortNumberFormattingFix_MX() {
   assertEquals('+52 800 123 4567', f.inputDigit('7'));
 }
 
+function testAYTFNoNationalPrefix() {
+  /** @type {i18n.phonenumbers.AsYouTypeFormatter} */
+  var f = new i18n.phonenumbers.AsYouTypeFormatter(RegionCode.IT);
+  assertEquals('3', f.inputDigit('3'));
+  assertEquals('33', f.inputDigit('3'));
+  assertEquals('333', f.inputDigit('3'));
+  assertEquals('333 3', f.inputDigit('3'));
+  assertEquals('333 33', f.inputDigit('3'));
+  assertEquals('333 333', f.inputDigit('3'));
+}
+
 function testAYTFShortNumberFormattingFix_US() {
   // For the US, an initial 1 is treated specially.
   /** @type {i18n.phonenumbers.AsYouTypeFormatter} */