@Override
public void setSelection(final ISelection selection) {
assert (selection != null && !selection.isEmpty());
final Object firstElement = ((IStructuredSelection) selection).getFirstElement();
/*
* breadcrumbViewer.setInput is called every time an item is selected.
* Because of this, it does not make sense for the content provider
* associated with the breadcrumbViewer to register a listener on the model
*/
breadcrumbViewer.setInput(firstElement);
breadcrumbViewer.setSelection(selection, true);
contentPanel.setSelection(firstElement);
contentPanel.setFocus();
}
public BreadcrumbNavigationView(Composite parent, int style) {
super(parent, style);
addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
setInput(null);
}
});
GridLayout layout = new GridLayout();
layout.marginHeight = 0;
layout.marginWidth = 0;
layout.horizontalSpacing = 0;
layout.verticalSpacing = 0;
setLayout(layout);
setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
breadcrumbViewer =
new BreadcrumbViewer(this, SWT.HORIZONTAL) {
@Override
protected void configureDropDownViewer(TreeViewer viewer, Object input) {
viewer.setContentProvider(new BreadcrumbContentProvider());
viewer.setLabelProvider(new ModelLabelProvider());
viewer.setComparator(new ModelNodeViewerComparator());
}
};
breadcrumbViewer.addOpenListener(
new IOpenListener() {
public void open(OpenEvent event) {
setSelection(event.getSelection());
}
});
breadcrumbViewer.addSelectionChangedListener(
new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
fireSelectionChangedEvent(event);
}
});
breadcrumbViewer.setLabelProvider(new ModelLabelProvider());
breadcrumbViewer.setContentProvider(new BreadcrumbContentProvider());
contentPanel = new ContentPanel(this, SWT.NONE);
}
@Override
public ISelection getSelection() {
return breadcrumbViewer.getSelection();
}