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Bug 517844 - nsDOMEvent::GetType could cache the return value, r=jst

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This commit is contained in:
Olli Pettay 2009-10-24 18:06:01 +03:00
parent 572d40007e
commit 63b621774f
2 changed files with 8 additions and 1 deletions
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8
content/events/src/nsDOMEvent.cpp
View File

@ -235,15 +235,21 @@ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
// nsIDOMEventInterface
NS_METHOD nsDOMEvent::GetType(nsAString& aType)
{
if (!mCachedType.IsEmpty()) {
aType = mCachedType;
return NS_OK;
}
const char* name = GetEventName(mEvent->message);
if (name) {
CopyASCIItoUTF16(name, aType);
mCachedType = aType;
return NS_OK;
} else if (mEvent->message == NS_USER_DEFINED_EVENT && mEvent->userType) {
nsAutoString name;
mEvent->userType->ToString(name);
aType = Substring(name, 2, name.Length() - 2); // Remove "on"
mCachedType = aType;
return NS_OK;
}
@ -724,7 +730,7 @@ nsDOMEvent::InitEvent(const nsAString& aEventTypeArg, PRBool aCanBubbleArg, PRBo
// re-dispatching it.
mEvent->target = nsnull;
mEvent->originalTarget = nsnull;
mCachedType = aEventTypeArg;
return NS_OK;
}

1
content/events/src/nsDOMEvent.h
View File

@ -212,6 +212,7 @@ protected:
nsCOMPtr<nsPresContext> mPresContext;
nsCOMPtr<nsIDOMEventTarget> mTmpRealOriginalTarget;
nsCOMPtr<nsIDOMEventTarget> mExplicitOriginalTarget;
nsString mCachedType;
PRPackedBool mEventIsInternal;
PRPackedBool mPrivateDataDuplicated;
};