Bug 130262 [Regression]Click Data Explorer does not cancel palette insert mode
Description: Click Data Explorer does not cancel palette insert mode. Steps to reproduce: 1. Click grid in Palette, then click Data Explorer Result: Move mouse to Layout, it still keep the status of insert grid mode. By the way, after step1, if I clicked a col in dataset and drag it to Layout, the column was inserted as expected but the mouse cursor still kept the insert grid mode.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
/**
	 * Get the current report ModuleHandle.
	 * 
	 * @return
	 */
	public ModuleHandle getModel( )
	{
		if ( model == null )
		{
			IReportProvider provider = EditorUtil.getReportProvider( this,
					getEditorInput( ) );
			if ( provider != null )
			{
				model = provider.getReportModuleHandle( getEditorInput( ) );
				return model;
			}
		}
		return model;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.IPartListener#partActivated(org.eclipse.ui.IWorkbenchPart)
	 */
	public void partActivated( IWorkbenchPart part )
	{
		if ( part != this )
		{
			if ( part instanceof PageBookView )
			{