PerspectiveSecurity.java

package edu.ualberta.med.biobank.rcp.perspective;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.eclipse.ui.IViewReference;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PartInitException;

import edu.ualberta.med.biobank.common.wrappers.UserWrapper;

public class PerspectiveSecurity {

    /**
     * perspectiveId=[View=List of features]
     */
    private static Map<String, Map<String, List<String>>> rightsEnablements;

    private static Map<String, String> preferredViews;

    static {
        rightsEnablements = new HashMap<String, Map<String, List<String>>>();
        preferredViews = new HashMap<String, String>();
        ProcessingPerspective.appendPreferredView(preferredViews);
        ReportsPerspective.appendPreferredView(preferredViews);
    }

    public static synchronized void updateVisibility(UserWrapper user,
        IWorkbenchPage page) throws PartInitException {
        String perspectiveId = page.getPerspective().getId();
        Map<String, List<String>> map = rightsEnablements.get(perspectiveId);
        if (map != null) {
            IWorkbenchPart activePart = page.getActivePart();
            boolean usePreviousActivePart = false;

            if (activePart != null) {

                // hide it. then show it if needed (to be sure the order is
                // still
                // the same)
                for (IViewReference ref : page.getViewReferences()) {
                    page.hideView(ref);
                }
                for (Entry<String, List<String>> entry : map.entrySet()) {
                    boolean show = true;
                    if (user.getCurrentWorkingCenter() == null
                        && ProcessingPerspective.ID.equals(perspectiveId)) {
                        show = false;
                    }
                    if (show) {
                        page.showView(entry.getKey());
                        if (entry.getKey().equals(
                            activePart.getClass().getName()))
                            usePreviousActivePart = true;
                    }
                }
            }

            // want to display preferred view on top
            String preferredView = null;
            if (usePreviousActivePart)
                preferredView = activePart.getClass().getName();
            else
                preferredView = preferredViews.get(perspectiveId);
            if (preferredView != null)
                for (IViewReference ref : page.getViewReferences()) {
                    if (ref.getId().equals(preferredView)) {
                        page.bringToTop(ref.getView(false));
                    }
                }
        }
    }
}