private bool TryMerge(PopOperation op1, PopOperation op2, out PopOperation res)
{
if (op1 is FragmentPopOperation <TViewModel> fragmentPopOperation)
{
if (op2 is FragmentPopOperation <TViewModel> fragmentPopOperation2)
{
if (fragmentPopOperation.HostStack == fragmentPopOperation2.HostStack)
{
fragmentPopOperation.FragmentStacksToPop.AddRange(fragmentPopOperation2.FragmentStacksToPop);
res = fragmentPopOperation;
return(true);
}
}
else if (op2 is ActivityPopOperation <TViewModel> finishActivityPopOperation)
{
if (fragmentPopOperation.HostStack == finishActivityPopOperation.ActivityStack)
{
// avoid popping fragment if activity will be stopped anyway
res = finishActivityPopOperation;
return(true);
}
}
}
res = null;
return(false);
}
private bool TryMerge(PopOperation op1, PopOperation op2, out PopOperation res)
{
if (op1 is NavigationControllerPopOperation nav1 && op2 is NavigationControllerPopOperation nav2)
{
if (nav1.HostStack == nav2.HostStack)
{
res = new NavigationControllerPopOperation(nav1.HostStack, nav1.CountToPop + nav2.CountToPop);
return(true);
}
}
res = null;
return(false);
}
private bool TryMerge(PopOperation popOp, PushOperation pushOp, out MergedPopPushOperation res)
{
if (popOp is NavigationControllerPopOperation navigationControllerPopOperation &&
pushOp is NavigationControllerPushOperation navigationControllerPushOperation)
{
if (navigationControllerPopOperation.HostStack == navigationControllerPushOperation.HostStack)
{
res = new MergedPopPushNavigationControllerOperation(navigationControllerPopOperation, navigationControllerPushOperation);
return(true);
}
}
res = null;
return(false);
}
private bool TryMerge(PopOperation popOp, PushOperation pushOp, out MergedPopPushOperation res)
{
if (popOp is FragmentPopOperation <TViewModel> fragmentPopOperation && pushOp is FragmentPushOperation <TViewModel> fragmentPushOperation)
{
if (fragmentPopOperation.HostStack == fragmentPushOperation.HostStack)
{
res = new MergedFragmentPopPushOperation <TViewModel>(fragmentPopOperation.HostStack, fragmentPopOperation.FragmentStacksToPop, fragmentPushOperation.FragmentStacksToPush);
return(true);
}
}
if (popOp is ActivityPopOperation <TViewModel> activityPopOperation && pushOp is ActivityPushOperation <TViewModel> activityPushOperation)
{
res = new MergedActivityPopPushOperation <TViewModel>(activityPopOperation, activityPushOperation);
return(true);
}
res = null;
return(false);
}
