pjs/layout/style/nsCSSRule.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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* The Original Code is mozilla.org code.
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/* base class for all rule types in a CSS style sheet */
#include "nsCSSRule.h"
#include "nsCRT.h"
#include "nsICSSStyleSheet.h"
nsCSSRule::nsCSSRule(void)
: mRefCnt(0),
mSheet(nsnull),
mParentRule(nsnull)
{
}
nsCSSRule::nsCSSRule(const nsCSSRule& aCopy)
: mRefCnt(0),
mSheet(aCopy.mSheet),
mParentRule(aCopy.mParentRule)
{
}
nsCSSRule::~nsCSSRule(void)
{
}
NS_IMPL_ADDREF(nsCSSRule)
NS_IMPL_RELEASE(nsCSSRule)
NS_IMETHODIMP
nsCSSRule::GetStyleSheet(nsIStyleSheet*& aSheet) const
{
NS_IF_ADDREF(mSheet);
aSheet = mSheet;
return NS_OK;
}
NS_IMETHODIMP
nsCSSRule::SetStyleSheet(nsICSSStyleSheet* aSheet)
{
// We don't reference count this up reference. The style sheet
// will tell us when it's going away or when we're detached from
// it.
mSheet = aSheet;
return NS_OK;
}
NS_IMETHODIMP
nsCSSRule::SetParentRule(nsICSSGroupRule* aRule)
{
// We don't reference count this up reference. The group rule
// will tell us when it's going away or when we're detached from
// it.
mParentRule = aRule;
return NS_OK;
}
NS_IMETHODIMP
nsCSSRule::MapRuleInfoInto(nsRuleData* aRuleData)
{
// The nsIStyleRule contract is not appropriate for all CSS rules.
NS_NOTREACHED("nsCSSRule::MapRuleInfoInto");
return NS_OK;
}