nsresult
nsDOMCSSAttributeDeclaration::SetCSSDeclaration(css::Declaration* aDecl)
{
NS_ASSERTION(mElement, "Must have Element to set the declaration!");
css::StyleRule* oldRule =
mIsSMILOverride ? mElement->GetSMILOverrideStyleRule() :
mElement->GetInlineStyleRule();
NS_ASSERTION(oldRule, "Element must have rule");
nsRefPtr<css::StyleRule> newRule =
oldRule->DeclarationChanged(aDecl, false);
if (!newRule) {
return NS_ERROR_OUT_OF_MEMORY;
}
return
mIsSMILOverride ? mElement->SetSMILOverrideStyleRule(newRule, true) :
mElement->SetInlineStyleRule(newRule, nullptr, true);
}
css::Declaration*
nsDOMCSSAttributeDeclaration::GetCSSDeclaration(PRBool aAllocate)
{
if (!mElement)
return nsnull;
css::StyleRule* cssRule;
#ifdef MOZ_SMIL
if (mIsSMILOverride)
cssRule = mElement->GetSMILOverrideStyleRule();
else
#endif // MOZ_SMIL
cssRule = mElement->GetInlineStyleRule();
if (cssRule) {
return cssRule->GetDeclaration();
}
if (!aAllocate) {
return nsnull;
}
// cannot fail
css::Declaration *decl = new css::Declaration();
decl->InitializeEmpty();
nsRefPtr<css::StyleRule> newRule = NS_NewCSSStyleRule(nsnull, decl);
// this *can* fail (inside SetAttrAndNotify, at least).
nsresult rv;
#ifdef MOZ_SMIL
if (mIsSMILOverride)
rv = mElement->SetSMILOverrideStyleRule(newRule, PR_FALSE);
else
#endif // MOZ_SMIL
rv = mElement->SetInlineStyleRule(newRule, PR_FALSE);
if (NS_FAILED(rv)) {
return nsnull; // the decl will be destroyed along with the style rule
}
return decl;
}
nsresult
nsDOMCSSAttributeDeclaration::SetCSSDeclaration(css::Declaration* aDecl)
{
NS_ASSERTION(mElement, "Must have Element to set the declaration!");
css::StyleRule* oldRule =
#ifdef MOZ_SMIL
mIsSMILOverride ? mElement->GetSMILOverrideStyleRule() :
#endif // MOZ_SMIL
mElement->GetInlineStyleRule();
NS_ASSERTION(oldRule, "Element must have rule");
nsRefPtr<css::StyleRule> newRule =
oldRule->DeclarationChanged(aDecl, PR_FALSE);
if (!newRule) {
return NS_ERROR_OUT_OF_MEMORY;
}
return
#ifdef MOZ_SMIL
mIsSMILOverride ? mElement->SetSMILOverrideStyleRule(newRule, PR_TRUE) :
#endif // MOZ_SMIL
mElement->SetInlineStyleRule(newRule, PR_TRUE);
}
css::Declaration*
nsDOMCSSAttributeDeclaration::GetCSSDeclaration(bool aAllocate)
{
if (!mElement)
return nullptr;
css::StyleRule* cssRule;
if (mIsSMILOverride)
cssRule = mElement->GetSMILOverrideStyleRule();
else
cssRule = mElement->GetInlineStyleRule();
if (cssRule) {
return cssRule->GetDeclaration();
}
if (!aAllocate) {
return nullptr;
}
// cannot fail
css::Declaration *decl = new css::Declaration();
decl->InitializeEmpty();
nsRefPtr<css::StyleRule> newRule = new css::StyleRule(nullptr, decl);
// this *can* fail (inside SetAttrAndNotify, at least).
nsresult rv;
if (mIsSMILOverride)
rv = mElement->SetSMILOverrideStyleRule(newRule, false);
else
rv = mElement->SetInlineStyleRule(newRule, nullptr, false);
if (NS_FAILED(rv)) {
return nullptr; // the decl will be destroyed along with the style rule
}
return decl;
}
