public IEclipseContext getActiveLeaf() {
IEclipseContext activeContext = this;
IEclipseContext child = getActiveChild();
while (child != null) {
activeContext = child;
child = child.getActiveChild();
}
return activeContext;
}
private void internalFixContext(MPart part, MUIElement oldSelectedElement) {
if (oldSelectedElement == null) {
return;
}
MContext parentPart = getParentWithContext(oldSelectedElement);
if (parentPart == null) {
// technically this shouldn't happen as there should be an MWindow somewhere
return;
}
IEclipseContext parentContext = parentPart.getContext();
IEclipseContext oldContext = getSubContext(oldSelectedElement);
Object child = parentContext.getActiveChild();
if (child == null || oldContext == null || child == oldContext) {
if (part == null) {
// TBD this should not be necessary; deactivation is missing somewhere
IEclipseContext currentActive = parentContext.getActiveChild();
if (currentActive != null) currentActive.deactivate();
} else part.getContext().activate();
}
}
public void testContextChildren() {
final MWindow window = createWindowWithOneView();
wb = new E4Workbench(window, appContext);
Widget topWidget = (Widget) window.getWidget();
assertTrue(topWidget instanceof Shell);
Shell shell = (Shell) topWidget;
assertEquals("MyWindow", shell.getText());
// should get the window context
IEclipseContext child = appContext.getActiveChild();
assertNotNull(child);
assertEquals(window.getContext(), child);
MPart modelPart = getContributedPart(window);
assertNotNull(modelPart);
assertEquals(window, modelPart.getParent().getParent().getParent());
// "activate" the part, same as (in theory) an
// SWT.Activate event.
AbstractPartRenderer factory = (AbstractPartRenderer) modelPart.getRenderer();
factory.activate(modelPart);
IEclipseContext next = child.getActiveChild();
while (next != null) {
child = next;
next = child.getActiveChild();
if (next == child) {
fail("Cycle detected in part context");
break;
}
}
assertFalse(window.getContext() == child);
MPart contextPart = (MPart) child.get(MPart.class.getName());
assertNotNull(contextPart);
assertEquals(window, contextPart.getParent().getParent().getParent());
}
private void clearContext(MContext contextME) {
MContext ctxt = (MContext) contextME;
IEclipseContext lclContext = ctxt.getContext();
if (lclContext != null) {
IEclipseContext parentContext = lclContext.getParent();
IEclipseContext child = parentContext.getActiveChild();
if (child == lclContext) {
child.deactivate();
}
ctxt.setContext(null);
lclContext.dispose();
}
}
public void selectionChanged(MPart part, Object selection) {
selection = createCompatibilitySelection(selection);
context.set(ISources.ACTIVE_CURRENT_SELECTION_NAME, selection);
IEclipseContext applicationContext = application.getContext();
if (applicationContext.getActiveChild() == context) {
application.getContext().set(ISources.ACTIVE_CURRENT_SELECTION_NAME, selection);
}
Object client = part.getObject();
if (client instanceof CompatibilityPart) {
IWorkbenchPart workbenchPart = ((CompatibilityPart) client).getPart();
notifyListeners(part.getElementId(), workbenchPart, (ISelection) selection);
}
}
/**
* Updates the selection of the workbench window with that of the active part's.
*
* @param activePart the currently active part
*/
public void updateSelection(IWorkbenchPart activePart) {
if (activePart != null) {
ISelectionProvider selectionProvider = activePart.getSite().getSelectionProvider();
if (selectionProvider != null) {
ISelection selection = selectionProvider.getSelection();
context.set(ISources.ACTIVE_CURRENT_SELECTION_NAME, selection);
IEclipseContext applicationContext = application.getContext();
if (applicationContext.getActiveChild() == context) {
application.getContext().set(ISources.ACTIVE_CURRENT_SELECTION_NAME, selection);
}
notifyListeners(activePart.getSite().getId(), activePart, selection);
notifyPostSelectionListeners(activePart.getSite().getId(), activePart, selection);
}
}
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer#disposeWidget
* (org.eclipse.e4.ui.model.application.ui.MUIElement)
*/
@Override
public void disposeWidget(MUIElement element) {
MPlaceholder ph = (MPlaceholder) element;
MUIElement refElement = ph.getRef();
Control refCtrl = (Control) refElement.getWidget();
// Remove the element ref from the rendered list
List<MPlaceholder> refs = renderedMap.get(refElement);
refs.remove(ph);
IEclipseContext curContext = modelService.getContainingContext(ph);
if (refs.size() == 0) {
// Ensure that the image is the 'original' image for this
// part. See bug 347471 for details
if (refElement instanceof MPart) {
MPart thePart = (MPart) refElement;
String imageURI = thePart.getIconURI();
thePart.setIconURI(null);
thePart.setIconURI(imageURI);
}
renderingEngine.removeGui(refElement);
} else {
// Ensure that the dispose of the element reference doesn't cascade
// to dispose the 'real' part
if (refCtrl != null && !refCtrl.isDisposed()) {
MPlaceholder currentRef = refElement.getCurSharedRef();
if (currentRef == ph) {
// Find another *rendered* ref to pass the part on to
for (MPlaceholder aPH : refs) {
Composite phComp = (Composite) aPH.getWidget();
if (phComp == null || phComp.isDisposed()) continue;
// Reparent the context(s) (if any)
IEclipseContext newParentContext = modelService.getContainingContext(aPH);
List<MContext> allContexts =
modelService.findElements(refElement, null, MContext.class, null);
for (MContext ctxtElement : allContexts) {
IEclipseContext theContext = ctxtElement.getContext();
// this may be null if it hasn't been rendered yet
if (theContext != null) {
if (theContext.getParent() == curContext) {
// about to reparent the context, if we're
// the active child of the current parent,
// deactivate ourselves first
if (curContext.getActiveChild() == theContext) {
theContext.deactivate();
}
theContext.setParent(newParentContext);
}
}
}
// reset the 'cur' ref
refElement.setCurSharedRef(aPH);
// Reparent the widget
refCtrl.setParent(phComp);
break;
}
} else if (currentRef != null) {
Composite phComp = (Composite) currentRef.getWidget();
if (phComp == null || phComp.isDisposed()) {
super.disposeWidget(element);
return;
}
// Reparent the context(s) (if any)
IEclipseContext newParentContext = modelService.getContainingContext(currentRef);
List<MContext> allContexts =
modelService.findElements(refElement, null, MContext.class, null);
for (MContext ctxtElement : allContexts) {
IEclipseContext theContext = ctxtElement.getContext();
// this may be null if it hasn't been rendered yet
if (theContext != null && theContext.getParent() == curContext) {
// about to reparent the context, if we're the
// active child of the current parent, deactivate
// ourselves first
if (curContext.getActiveChild() == theContext) {
theContext.deactivate();
}
theContext.setParent(newParentContext);
}
}
}
}
}
super.disposeWidget(element);
}
public void testGet_ActiveChild2() throws Exception {
IEclipseContext context = getActiveChildContext(application);
assertNotNull(context.getActiveChild());
}
@Override
public void testGet_ActiveChild() throws Exception {
IEclipseContext context = application.getContext();
assertNotNull(context.getActiveChild());
}
