@Override
public void hidePart(MPart part, boolean force) {
if (isInContainer(part)) {
MPlaceholder sharedRef = part.getCurSharedRef();
MUIElement toBeRemoved = getRemoveTarget(part);
MElementContainer<MUIElement> parent = getParent(toBeRemoved);
List<MUIElement> children = parent.getChildren();
// check if we're a placeholder but not actually the shared ref of the part
if (toBeRemoved != part && toBeRemoved instanceof MPlaceholder && sharedRef != toBeRemoved) {
toBeRemoved.setToBeRendered(false);
// if so, not much to do, remove ourselves if necessary but that's it
if (force || part.getTags().contains(REMOVE_ON_HIDE_TAG)) {
parent.getChildren().remove(toBeRemoved);
}
return;
}
boolean isActiveChild = isActiveChild(part);
MPart activationCandidate = null;
// check if we're the active child
if (isActiveChild) {
// get the activation candidate if we are
activationCandidate = partActivationHistory.getNextActivationCandidate(getParts(), part);
}
MPerspective thePersp = modelService.getPerspectiveFor(toBeRemoved);
boolean needNewSel =
thePersp == null || !thePersp.getTags().contains("PerspClosing"); // $NON-NLS-1$
if (needNewSel) {
if (parent.getSelectedElement() == toBeRemoved) {
// if we're the selected element and we're going to be hidden, need to select
// something else
MUIElement candidate = partActivationHistory.getSiblingSelectionCandidate(part);
candidate =
candidate == null
? null
: candidate.getCurSharedRef() == null ? candidate : candidate.getCurSharedRef();
if (candidate != null && children.contains(candidate)) {
parent.setSelectedElement(candidate);
} else {
for (MUIElement child : children) {
if (child != toBeRemoved && child.isToBeRendered()) {
parent.setSelectedElement(child);
break;
}
}
}
}
if (activationCandidate == null) {
// nothing else to activate and we're the active child, deactivate
if (isActiveChild) {
part.getContext().deactivate();
}
} else {
// activate our candidate
activate(activationCandidate);
}
}
if (toBeRemoved != null) {
toBeRemoved.setToBeRendered(false);
} else {
part.setToBeRendered(false);
}
if (parent.getSelectedElement() == toBeRemoved) {
parent.setSelectedElement(null);
}
if (force || part.getTags().contains(REMOVE_ON_HIDE_TAG)) {
children.remove(toBeRemoved);
}
// remove ourselves from the activation history also since we're being hidden
partActivationHistory.forget(getWindow(), part, toBeRemoved == part);
}
}
