void
Link::ResetLinkState(bool aNotify, bool aHasHref)
{
nsLinkState defaultState;
// The default state for links with an href is unvisited.
if (aHasHref) {
defaultState = eLinkState_Unvisited;
} else {
defaultState = eLinkState_NotLink;
}
// If !mNeedsRegstration, then either we've never registered, or we're
// currently registered; in either case, we should remove ourself
// from the doc and the history.
if (!mNeedsRegistration && mLinkState != eLinkState_NotLink) {
nsIDocument *doc = mElement->GetCurrentDoc();
if (doc && (mRegistered || mLinkState == eLinkState_Visited)) {
// Tell the document to forget about this link if we've registered
// with it before.
doc->ForgetLink(this);
}
UnregisterFromHistory();
}
// If we have an href, we should register with the history.
mNeedsRegistration = aHasHref;
// If we've cached the URI, reset always invalidates it.
mCachedURI = nullptr;
if (mSearchParams) {
mSearchParams->Invalidate();
}
// Update our state back to the default.
mLinkState = defaultState;
// We have to be very careful here: if aNotify is false we do NOT
// want to call UpdateState, because that will call into LinkState()
// and try to start off loads, etc. But ResetLinkState is called
// with aNotify false when things are in inconsistent states, so
// we'll get confused in that situation. Instead, just silently
// update the link state on mElement. Since we might have set the
// link state to unvisited, make sure to update with that state if
// required.
if (aNotify) {
mElement->UpdateState(aNotify);
} else {
if (mLinkState == eLinkState_Unvisited) {
mElement->UpdateLinkState(NS_EVENT_STATE_UNVISITED);
} else {
mElement->UpdateLinkState(nsEventStates());
}
}
}
void
Link::ResetLinkState(bool aNotify)
{
// If we are in our default state, bail early.
if (mLinkState == defaultState) {
return;
}
Element *element = mElement;
// Tell the document to forget about this link if we were a link before.
nsIDocument *doc = element->GetCurrentDoc();
if (doc && mLinkState != eLinkState_NotLink) {
doc->ForgetLink(this);
}
UnregisterFromHistory();
// Update our state back to the default.
mLinkState = defaultState;
// Get rid of our cached URI.
mCachedURI = nullptr;
// We have to be very careful here: if aNotify is false we do NOT
// want to call UpdateState, because that will call into LinkState()
// and try to start off loads, etc. But ResetLinkState is called
// with aNotify false when things are in inconsistent states, so
// we'll get confused in that situation. Instead, just silently
// update the link state on mElement.
if (aNotify) {
mElement->UpdateState(aNotify);
} else {
mElement->UpdateLinkState(nsEventStates());
}
}
Link::~Link()
{
UnregisterFromHistory();
}
