Bug 130495 Get rid of SessionHandleAdapter
Now, we use SessionHandleAdapter to keep current active report deisng. That's a bad practive for editor swith and rebuild will cuase lots of problmes. Need find way to replace it.
UI/org.eclipse.birt.report.designer.ui.ide/src/org/eclipse/birt/report/designer/ui/editors/ReportEditorProxy.java
import org.eclipse.birt.report.designer.internal.ui.editors.parts.GraphicalEditorWithFlyoutPalette;
import org.eclipse.birt.report.designer.internal.ui.editors.util.EditorUtil;
import org.eclipse.birt.report.designer.internal.ui.util.DataSetManager;
import org.eclipse.birt.report.designer.internal.ui.util.UIUtil;
import org.eclipse.birt.report.designer.internal.ui.views.outline.DesignerOutlinePage;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.gef.GraphicalViewer;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorSite;
import org.eclipse.ui.IFileEditorInput;
import org.eclipse.ui.IPartListener;
import org.eclipse.ui.IPropertyListener;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchPartSite;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.part.EditorPart;
import org.eclipse.ui.part.PageBookView;
/**
 * ReportEditorProxy is a editor proxy, which use in eclipse IDE enviroment.
 * 
 * ReportEditorProxy determines editor input, then create a proper editor
 * instance to represents the editor behaivors.
 */
public class ReportEditorProxy extends EditorPart implements