Bug 1449097 - Use Servo to implement GetStatesForPseudoClass function in InspectorUtils. r=emilio

MozReview-Commit-ID: 2tL5otfqCiw

--HG--
extra : rebase_source : fe9ddd2a840efb33f5c0d7f53c7c755a0929a8f9

layout/inspector/InspectorUtils.cpp

@@ -980,39 +980,11 @@ InspectorUtils::GetUsedFontFaces(GlobalObject& aGlobalObject,
 static EventStates
 GetStatesForPseudoClass(const nsAString& aStatePseudo)
 {
-  // An array of the states that are relevant for various pseudoclasses.
-  // XXXbz this duplicates code in nsCSSRuleProcessor
-  static const EventStates sPseudoClassStates[] = {
-#define CSS_PSEUDO_CLASS(_name, _value, _flags, _pref) \
-    EventStates(),
-#define CSS_STATE_PSEUDO_CLASS(_name, _value, _flags, _pref, _states) \
-    _states,
-#include "nsCSSPseudoClassList.h"
-#undef CSS_STATE_PSEUDO_CLASS
-#undef CSS_PSEUDO_CLASS
-
-    // Add more entries for our fake values to make sure we can't
-    // index out of bounds into this array no matter what.
-    EventStates(),
-    EventStates()
-  };
-  static_assert(MOZ_ARRAY_LENGTH(sPseudoClassStates) ==
-                static_cast<size_t>(CSSPseudoClassType::MAX),
-                "Length of PseudoClassStates array is incorrect");
-
-  RefPtr<nsAtom> atom = NS_Atomize(aStatePseudo);
-  CSSPseudoClassType type = nsCSSPseudoClasses::
-    GetPseudoType(atom, CSSEnabledState::eIgnoreEnabledState);
-
-  // Ignore :any-link so we don't give the element simultaneous
-  // visited and unvisited style state
-  if (type == CSSPseudoClassType::anyLink ||
-      type == CSSPseudoClassType::mozAnyLink) {
+  if (aStatePseudo.IsEmpty() || aStatePseudo[0] != u':') {
     return EventStates();
   }
-  // Our array above is long enough that indexing into it with
-  // NotPseudo is ok.
-  return sPseudoClassStates[static_cast<CSSPseudoClassTypeBase>(type)];
+  NS_ConvertUTF16toUTF8 statePseudo(Substring(aStatePseudo, 1));
+  return EventStates(Servo_PseudoClass_GetStates(&statePseudo));
 }
 
 /* static */ void

layout/style/ServoBindingList.h

@@ -820,6 +820,8 @@ SERVO_BINDING_FUNC(Servo_ParseFontShorthandForMatching, bool,
 
 SERVO_BINDING_FUNC(Servo_Property_IsShorthand, bool,
                    const nsACString* name, bool* found);
+SERVO_BINDING_FUNC(Servo_PseudoClass_GetStates, uint64_t,
+                   const nsACString* name)
 
 // AddRef / Release functions
 #define SERVO_ARC_TYPE(name_, type_)                                \