private void safeRemoveGui(MUIElement element) {
if (removeRoot == null) removeRoot = element;
renderedElements.remove(element);
// We call 'hideChild' *before* checking if the actual element
// has been rendered in order to pick up cases of 'lazy loading'
MUIElement parent = element.getParent();
AbstractPartRenderer parentRenderer = parent != null ? getRendererFor(parent) : null;
if (parentRenderer != null) {
parentRenderer.hideChild(element.getParent(), element);
}
AbstractPartRenderer renderer = getRendererFor(element);
// If the element hasn't been rendered then this is a NO-OP
if (renderer != null) {
if (element instanceof MElementContainer<?>) {
MElementContainer<MUIElement> container = (MElementContainer<MUIElement>) element;
MUIElement selectedElement = container.getSelectedElement();
List<MUIElement> children = container.getChildren();
for (MUIElement child : children) {
// remove stuff in the "back" first
if (child != selectedElement) {
removeGui(child);
}
}
if (selectedElement != null && children.contains(selectedElement)) {
// now remove the selected element
removeGui(selectedElement);
}
}
if (element instanceof MPerspective) {
MPerspective perspective = (MPerspective) element;
for (MWindow subWindow : perspective.getWindows()) {
removeGui(subWindow);
}
} else if (element instanceof MWindow) {
MWindow window = (MWindow) element;
for (MWindow subWindow : window.getWindows()) {
removeGui(subWindow);
}
if (window instanceof MTrimmedWindow) {
MTrimmedWindow trimmedWindow = (MTrimmedWindow) window;
for (MUIElement trimBar : trimmedWindow.getTrimBars()) {
removeGui(trimBar);
}
}
}
if (element instanceof MContribution) {
MContribution contribution = (MContribution) element;
Object client = contribution.getObject();
IEclipseContext parentContext = renderer.getContext(element);
if (parentContext != null && client != null) {
try {
ContextInjectionFactory.invoke(client, PersistState.class, parentContext, null);
} catch (Exception e) {
if (logger != null) {
logger.error(e);
}
}
}
}
renderer.disposeWidget(element);
// unset the client object
if (element instanceof MContribution) {
MContribution contribution = (MContribution) element;
Object client = contribution.getObject();
IEclipseContext parentContext = renderer.getContext(element);
if (parentContext != null && client != null) {
try {
ContextInjectionFactory.uninject(client, parentContext);
} catch (Exception e) {
if (logger != null) {
logger.error(e);
}
}
}
contribution.setObject(null);
}
// dispose the context
if (element instanceof MContext) {
clearContext((MContext) element);
}
}
if (removeRoot == element) removeRoot = null;
}
