Bug 1344642 - Part 2: Add a new pref for input type=week, month and datetime-local. r=smaug

dom/html/HTMLInputElement.cpp

@@ -544,7 +544,8 @@ GetDOMFileOrDirectoryPath(const OwningFileOrDirectory& aData,
 bool
 HTMLInputElement::ValueAsDateEnabled(JSContext* cx, JSObject* obj)
 {
-  return IsExperimentalFormsEnabled() || IsInputDateTimeEnabled();
+  return IsExperimentalFormsEnabled() || IsInputDateTimeEnabled() ||
+    IsInputDateTimeOthersEnabled();
 }
 
 NS_IMETHODIMP
@@ -5710,7 +5711,7 @@ HTMLInputElement::IsDateTimeTypeSupported(uint8_t aDateTimeInputType)
          ((aDateTimeInputType == NS_FORM_INPUT_MONTH ||
            aDateTimeInputType == NS_FORM_INPUT_WEEK ||
            aDateTimeInputType == NS_FORM_INPUT_DATETIME_LOCAL) &&
-          IsInputDateTimeEnabled());
+          IsInputDateTimeOthersEnabled());
 }
 
 /* static */ bool
@@ -5786,6 +5787,20 @@ HTMLInputElement::IsInputDateTimeEnabled()
   return sDateTimeEnabled;
 }
 
+/* static */ bool
+HTMLInputElement::IsInputDateTimeOthersEnabled()
+{
+  static bool sDateTimeOthersEnabled = false;
+  static bool sDateTimeOthersPrefCached = false;
+  if (!sDateTimeOthersPrefCached) {
+    sDateTimeOthersPrefCached = true;
+    Preferences::AddBoolVarCache(&sDateTimeOthersEnabled,
+                                 "dom.forms.datetime.others", false);
+  }
+
+  return sDateTimeOthersEnabled;
+}
+
 /* static */ bool
 HTMLInputElement::IsInputNumberEnabled()
 {
@@ -5835,12 +5850,9 @@ HTMLInputElement::ParseAttribute(int32_t aNamespaceID,
     if (aAttribute == nsGkAtoms::type) {
       aResult.ParseEnumValue(aValue, kInputTypeTable, false, kInputDefaultType);
       int32_t newType = aResult.GetEnumValue();
-      if ((IsExperimentalMobileType(newType) &&
-           !IsExperimentalFormsEnabled()) ||
-          (newType == NS_FORM_INPUT_NUMBER && !IsInputNumberEnabled()) ||
+      if ((newType == NS_FORM_INPUT_NUMBER && !IsInputNumberEnabled()) ||
           (newType == NS_FORM_INPUT_COLOR && !IsInputColorEnabled()) ||
-          (IsDateTimeInputType(newType) &&
-           !IsDateTimeTypeSupported(newType))) {
+          (IsDateTimeInputType(newType) && !IsDateTimeTypeSupported(newType))) {
         // There's no public way to set an nsAttrValue to an enum value, but we
         // can just re-parse with a table that doesn't have any types other than
         // "text" in it.