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
return instance.isSaveOnCloseNeeded( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.part.EditorPart#setInput(org.eclipse.ui.IEditorInput)
	 */
	protected void setInput( IEditorInput input )
	{
		
		super.setInput( input );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.part.EditorPart#setPartName(java.lang.String)
	 */
	protected void setPartName( String partName )
	{
		this.title = partName;
		super.setPartName( partName );
	}
	public void partActivated( IWorkbenchPart part )
	{
		instance.partActivated( part );
		if ( part != this )
		{
			if ( part instanceof PageBookView )
			{
				PageBookView view = (PageBookView) part;