Bug 131484 Can't not add item by click the item from palette
Details: Can't not add item Setp: 1.New a report design and open the palette. 2.Click the lable icon. 3.Move the mouse to layout and click again to add the label. Actual result: Nothing is added in layout.
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