NS_IMETHODIMP
HTMLOptionElement::SetSelected(bool aValue)
{
// Note: The select content obj maintains all the PresState
// so defer to it to get the answer
HTMLSelectElement* selectInt = GetSelect();
if (selectInt) {
int32_t index = Index();
// This should end up calling SetSelectedInternal
selectInt->SetOptionsSelectedByIndex(index, index, aValue,
false, true, true);
} else {
SetSelectedInternal(aValue, true);
}
return NS_OK;
}
nsresult
HTMLOptionElement::BeforeSetAttr(int32_t aNamespaceID, nsIAtom* aName,
const nsAttrValueOrString* aValue,
bool aNotify)
{
nsresult rv = nsGenericHTMLElement::BeforeSetAttr(aNamespaceID, aName,
aValue, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
if (aNamespaceID != kNameSpaceID_None || aName != nsGkAtoms::selected ||
mSelectedChanged) {
return NS_OK;
}
// We just changed out selected state (since we look at the "selected"
// attribute when mSelectedChanged is false). Let's tell our select about
// it.
HTMLSelectElement* selectInt = GetSelect();
if (!selectInt) {
return NS_OK;
}
// Note that at this point mSelectedChanged is false and as long as that's
// true it doesn't matter what value mIsSelected has.
NS_ASSERTION(!mSelectedChanged, "Shouldn't be here");
bool newSelected = (aValue != nullptr);
bool inSetDefaultSelected = mIsInSetDefaultSelected;
mIsInSetDefaultSelected = true;
int32_t index = Index();
// This should end up calling SetSelectedInternal, which we will allow to
// take effect so that parts of SetOptionsSelectedByIndex that might depend
// on it working don't get confused.
selectInt->SetOptionsSelectedByIndex(index, index, newSelected,
false, true, aNotify);
// Now reset our members; when we finish the attr set we'll end up with the
// rigt selected state.
mIsInSetDefaultSelected = inSetDefaultSelected;
mSelectedChanged = false;
// mIsSelected doesn't matter while mSelectedChanged is false
return NS_OK;
}
NS_IMETHODIMP
HTMLOptionElement::SetSelected(bool aValue)
{
// Note: The select content obj maintains all the PresState
// so defer to it to get the answer
HTMLSelectElement* selectInt = GetSelect();
if (selectInt) {
int32_t index = Index();
uint32_t mask = HTMLSelectElement::SET_DISABLED | HTMLSelectElement::NOTIFY;
if (aValue) {
mask |= HTMLSelectElement::IS_SELECTED;
}
// This should end up calling SetSelectedInternal
selectInt->SetOptionsSelectedByIndex(index, index, mask);
} else {
SetSelectedInternal(aValue, true);
}
return NS_OK;
}
nsresult
HTMLOptionElement::BeforeSetAttr(int32_t aNamespaceID, nsIAtom* aName,
nsAttrValueOrString* aValue,
bool aNotify)
{
nsresult rv = nsGenericHTMLElement::BeforeSetAttr(aNamespaceID, aName,
aValue, aNotify);
NS_ENSURE_SUCCESS(rv, rv);
if (aNamespaceID != kNameSpaceID_None || aName != nsGkAtoms::selected ||
mSelectedChanged) {
return NS_OK;
}
bool defaultSelected = aValue;
// First make sure we actually set our mIsSelected state to reflect our new
// defaultSelected state. If that turns out to be wrong,
// SetOptionsSelectedByIndex will fix it up. But otherwise we can end up in a
// situation where mIsSelected is still false, but mSelectedChanged becomes
// true (later in this method, when we compare mIsSelected to
// defaultSelected), and then we start returning false for Selected() even
// though we're actually selected.
mIsSelected = defaultSelected;
// We just changed out selected state (since we look at the "selected"
// attribute when mSelectedChanged is false). Let's tell our select about
// it.
HTMLSelectElement* selectInt = GetSelect();
if (!selectInt) {
return NS_OK;
}
NS_ASSERTION(!mSelectedChanged, "Shouldn't be here");
bool inSetDefaultSelected = mIsInSetDefaultSelected;
mIsInSetDefaultSelected = true;
int32_t index = Index();
uint32_t mask = HTMLSelectElement::SET_DISABLED;
if (defaultSelected) {
mask |= HTMLSelectElement::IS_SELECTED;
}
if (aNotify) {
mask |= HTMLSelectElement::NOTIFY;
}
// This can end up calling SetSelectedInternal if our selected state needs to
// change, which we will allow to take effect so that parts of
// SetOptionsSelectedByIndex that might depend on it working don't get
// confused.
selectInt->SetOptionsSelectedByIndex(index, index, mask);
// Now reset our members; when we finish the attr set we'll end up with the
// rigt selected state.
mIsInSetDefaultSelected = inSetDefaultSelected;
// mIsSelected might have been changed by SetOptionsSelectedByIndex. Possibly
// more than once; make sure our mSelectedChanged state is set correctly.
mSelectedChanged = mIsSelected != defaultSelected;
return NS_OK;
}
