Bug 1367615 - Part 3: Implement ServoStyleRule::GetSelectorCount and GetSelectorText. r=emilio

MozReview-Commit-ID: 9MIY9ing11V

--HG--
extra : rebase_source : f51e5bef0ea87a78677a08fbd93cdadcc6c9905d

layout/style/ServoBindingList.h

@@ -147,6 +147,11 @@ SERVO_BINDING_FUNC(Servo_StyleRule_SetStyle, void,
                    RawServoDeclarationBlockBorrowed declarations)
 SERVO_BINDING_FUNC(Servo_StyleRule_GetSelectorText, void,
                    RawServoStyleRuleBorrowed rule, nsAString* result)
+SERVO_BINDING_FUNC(Servo_StyleRule_GetSelectorTextFromIndex, void,
+                   RawServoStyleRuleBorrowed rule, uint32_t index,
+                   nsAString* result)
+SERVO_BINDING_FUNC(Servo_StyleRule_GetSelectorCount, void,
+                   RawServoStyleRuleBorrowed rule, uint32_t* count)
 SERVO_BINDING_FUNC(Servo_ImportRule_GetHref, void,
                    RawServoImportRuleBorrowed rule, nsAString* result)
 SERVO_BINDING_FUNC(Servo_ImportRule_GetSheet, const RawServoStyleSheet*,

layout/style/ServoStyleRule.cpp

@@ -253,18 +253,23 @@ ServoStyleRule::GetStyle(nsIDOMCSSStyleDeclaration** aStyle)
 uint32_t
 ServoStyleRule::GetSelectorCount()
 {
-  return 0;
+  uint32_t aCount;
+  Servo_StyleRule_GetSelectorCount(mRawRule, &aCount);
+
+  return aCount;
 }
 
 nsresult
 ServoStyleRule::GetSelectorText(uint32_t aSelectorIndex, nsAString& aText)
 {
+  Servo_StyleRule_GetSelectorTextFromIndex(mRawRule, aSelectorIndex, &aText);
   return NS_OK;
 }
 
 nsresult
 ServoStyleRule::GetSpecificity(uint32_t aSelectorIndex, uint64_t* aSpecificity)
 {
+  // TODO Bug 1370501
   return NS_OK;
 }
 
@@ -274,6 +279,7 @@ ServoStyleRule::SelectorMatchesElement(Element* aElement,
                                        const nsAString& aPseudo,
                                        bool* aMatches)
 {
+  // TODO Bug 1370502
   return NS_OK;
 }