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package org.openxma.rwt.launch;

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import org.eclipse.swt.widgets.Shell;

import at.spardat.xma.boot.component.IComponent;
import at.spardat.xma.boot.component.IDialog;

public class PageUtil {
	
	
	public static IDialog getDialog(IComponent comp) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
		
    	Method getDialogMethod = null;
    	for (Method m : comp.getClass().getMethods()) {
    		if (m.getName().equals("getDialog")) {
    			getDialogMethod = m;
    		}
    	}    			
		IDialog dialog = (IDialog)getDialogMethod.invoke(comp,null);		
		return dialog;
	}
	
	public static void setShell(IDialog d, Shell shell) throws SecurityException, NoSuchFieldException, IllegalArgumentException, IllegalAccessException {		
		Class currentClass = d.getClass();
		Class dialogPageClass = null;		
		while (currentClass != null) {
			if (currentClass.getName().equals("at.spardat.xma.page.DialogPage")) {
				dialogPageClass = currentClass;
			}	
			currentClass = currentClass.getSuperclass();
		}
		if (dialogPageClass != null) {
			for (Field f : dialogPageClass.getDeclaredFields()) {
				if (f.getName().equals("shell")) {
					f.setAccessible(true);
					f.set(d,shell);
				}
			}
		}
	}	
	
	public static void setEventsEnabled(IDialog dialog, boolean enabled) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
    	Method setShellMethod = null;
    	for (Method m : dialog.getClass().getMethods()) {
    		if (m.getName().equals("setEventsEnabled")) {
    			setShellMethod = m;
    		}
    	}
    	setShellMethod.invoke(dialog, true);				
	}	
	
	public static void initForEmbedding(IDialog dialog) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
    	Method setShellMethod = null;
    	for (Method m : dialog.getClass().getMethods()) {
    		if (m.getName().equals("initForEmbedding")) {
    			setShellMethod = m;
    		}
    	}
    	if (setShellMethod != null) {
    		System.out.println("Method initForEmbedding executing...");
    		setShellMethod.invoke(dialog);
    		System.out.println("Method initForEmbedding executed.");    		
    	} else {
    		System.out.println("Method initForEmbedding not found.");
    	}
	}		
	
	
	public static boolean isAppShell(IDialog dialog) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
    	Method setShellMethod = null;
    	for (Method m : dialog.getClass().getMethods()) {
    		if (m.getName().equals("isAppShell")) {
    			setShellMethod = m;
    		}
    	}
    	if (setShellMethod != null) {
    		System.out.println("Method isAppShell executing...");
    		Object result = setShellMethod.invoke(dialog);
    		System.out.println("Method isAppShell executed.");
    		return (Boolean)result;
    	} else {
    		System.out.println("Method isAppShell not found.");
    	}
    	return false;
	}		
	
	public static void runRootTask(IDialog dialog) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
    	Method setShellMethod = null;
    	for (Method m : dialog.getClass().getMethods()) {
    		if (m.getName().equals("runRootTask")) {
    			setShellMethod = m;
    		}
    	}
    	if (setShellMethod != null) {
    		System.out.println("Method runRootTask executing...");
    		Object result = setShellMethod.invoke(dialog);
    		System.out.println("Method runRootTask executed.");
    	} else {
    		System.out.println("Method runRootTask not found.");
    	}
	}		

}