ECode EnterTransitionCoordinator::TriggerViewsReady(
/* [in] */ IArrayMap* sharedElements) //ArrayMap<String, View>
{
if (mAreViewsReady) {
return NOERROR;
}
mAreViewsReady = TRUE;
// Ensure the views have been laid out before capturing the views -- we need the epicenter.
Boolean isEmpty;
sharedElements->IsEmpty(&isEmpty);
if (isEmpty) {
ViewsReady(sharedElements);
return NOERROR;
}
AutoPtr<IInterface> obj;
sharedElements->Get(0, (IInterface**)&obj);
IView* sharedElement = IView::Probe(obj);
Boolean requested;
sharedElement->IsLayoutRequested(&requested);
if (!requested) {
ViewsReady(sharedElements);
}
else {
AutoPtr<IOnPreDrawListener> listener = new SharedElementOnPreDrawListener(
this, sharedElements, sharedElement);
AutoPtr<IViewTreeObserver> vto;
sharedElement->GetViewTreeObserver((IViewTreeObserver**)&vto);
vto->AddOnPreDrawListener(listener);
}
return NOERROR;
}
ECode EnterTransitionCoordinator::constructor(
/* [in] */ IActivity* activity,
/* [in] */ IResultReceiver* resultReceiver,
/* [in] */ IArrayList* sharedElementNames,
/* [in] */ Boolean isReturning)
{
AutoPtr<IWindow> window;
activity->GetWindow((IWindow**)&window);
FAIL_RETURN(ActivityTransitionCoordinator::constructor(
window, sharedElementNames, GetListener(activity, isReturning), isReturning))
mActivity = activity;
SetResultReceiver(resultReceiver);
PrepareEnter();
AutoPtr<IBundle> resultReceiverBundle;
CBundle::New((IBundle**)&resultReceiverBundle);
resultReceiverBundle->PutParcelable(
ActivityTransitionCoordinator::KEY_REMOTE_RECEIVER, this);
mResultReceiver->Send(
IActivityTransitionCoordinator::MSG_SET_REMOTE_RECEIVER, resultReceiverBundle);
AutoPtr<IViewGroup> vg;
GetDecor((IViewGroup**)&vg);
IView* decorView = IView::Probe(vg);
if (decorView != NULL) {
AutoPtr<IViewTreeObserver> vto;
decorView->GetViewTreeObserver((IViewTreeObserver**)&vto);
AutoPtr<IOnPreDrawListener> listener = new DecorViewOnPreDrawListener(this, decorView);
vto->AddOnPreDrawListener(listener);
}
return NOERROR;
}
void EnterTransitionCoordinator::SendSharedElementDestination()
{
Boolean allReady, bval;
AutoPtr<IViewGroup> vg;
GetDecor((IViewGroup**)&vg);
IView* decorView = IView::Probe(vg);
AutoPtr<ITransition> evt;
GetEnterViewsTransition((ITransition**)&evt);
if (AllowOverlappingTransitions() && evt != NULL) {
allReady = FALSE;
}
else if (decorView == NULL) {
allReady = TRUE;
}
else {
decorView->IsLayoutRequested(&allReady);
allReady = !allReady;
if (allReady) {
Int32 size;
mSharedElements->GetSize(&size);
IView* view;
for (Int32 i = 0; i < size; i++) {
AutoPtr<IInterface> obj;
mSharedElements->Get(i, (IInterface**)&obj);
view = IView::Probe(obj);
view->IsLayoutRequested(&bval);
if (bval) {
allReady = FALSE;
break;
}
}
}
}
if (allReady) {
AutoPtr<IBundle> state = CaptureSharedElementState();
SetSharedElementMatrices();
MoveSharedElementsToOverlay();
mResultReceiver->Send(
IActivityTransitionCoordinator::MSG_SHARED_ELEMENT_DESTINATION, state);
}
else if (decorView != NULL) {
AutoPtr<IViewTreeObserver> vto;
decorView->GetViewTreeObserver((IViewTreeObserver**)&vto);
AutoPtr<IOnPreDrawListener> listener = new DestinationDecorViewOnPreDrawListener(this, decorView);
vto->AddOnPreDrawListener(listener);
}
if (AllowOverlappingTransitions()) {
StartEnterTransitionOnly();
}
}
void EnterTransitionCoordinator::OnTakeSharedElements()
{
if (!mIsReadyForTransition || mSharedElementsBundle == NULL) {
return;
}
AutoPtr<IBundle> sharedElementState = mSharedElementsBundle;
mSharedElementsBundle = NULL;
AutoPtr<IViewGroup> vg;
GetDecor((IViewGroup**)&vg);
IView* decorView = IView::Probe(vg);
if (decorView != NULL) {
AutoPtr<IViewTreeObserver> vto;
decorView->GetViewTreeObserver((IViewTreeObserver**)&vto);
AutoPtr<IOnPreDrawListener> listener = new TakeSharedElementsOnPreDrawListener(
this, decorView, sharedElementState);
vto->AddOnPreDrawListener(listener);
decorView->Invalidate();
}
}