/*

  @test %I% %E%

  @bug 6315717

  @summary verifies that InputEvents button masks arrays are the same

  @author Andrei Dmitriev : area=awt.event

  @run main ButtonArraysEquality

 */

import java.awt.*;

import java.awt.event.*;

import java.lang.reflect.*;

import java.security.AccessController;

import java.security.PrivilegedAction;

// get array InputEvent.BUTTON_MASK via reflection

// get array InputEvent.BUTTON_DOWN_MASK via reflection

// compare their lengths and values

public class ButtonArraysEquality {

    static int [] eventDownMask = new int []{InputEvent.BUTTON1_DOWN_MASK, InputEvent.BUTTON2_DOWN_MASK, InputEvent.BUTTON3_DOWN_MASK};

    public static void main(String []s){

        int [] buttonDownMasksAPI = new int [MouseInfo.getNumberOfButtons()];

        for (int i = 0; i < MouseInfo.getNumberOfButtons(); i++){

            buttonDownMasksAPI[i] = InputEvent.getMaskForButton(i+1);

            System.out.println("TEST: "+buttonDownMasksAPI[i]);

        }

        // getButtonDownMasks()

        Object obj = AccessController.doPrivileged(

                                            new PrivilegedAction() {

                                                public Object run() {

                                                    try {

                                                        Class clazz = Class.forName("java.awt.event.InputEvent");

                                                        Method method  = clazz.getDeclaredMethod("getButtonDownMasks",new Class [] {});

                                                        if (method != null) {

                                                            method.setAccessible(true);

                                                            return method.invoke(null, (Object[])null);

                                                        }

                                                    }catch (Exception e){

                                                        throw new RuntimeException("Test failed. Exception occured:", e);

                                                    }

                                                    return null;

                                                }

                                            });

        int [] buttonDownMasks = new int [Array.getLength(obj)];

        checkNullAndPutValuesToArray(buttonDownMasks, obj);

        //check lengths: array shouldn't contain less elements then the number of buttons on a mouse

        if (buttonDownMasks.length < buttonDownMasksAPI.length){

            throw new RuntimeException("Test failed. The lengths array is less then the number of buttons");

        }

        // verify values for first three buttons

        for (int i = 0; i < 3; i++) {

            if (eventDownMask[i] != buttonDownMasks[i])

            {

                System.out.println("Test : "+ i + " | " + " | " +eventDownMask[i] + " | "+ buttonDownMasks[i]);

                throw new RuntimeException("Failure: masks are not correct for standard buttons");

            }

        }

        // verify values for extra buttons if any

        for (int i = 3; i < MouseInfo.getNumberOfButtons(); i++) {

            if (buttonDownMasksAPI[i] != buttonDownMasks[i]) {

                throw new RuntimeException("Failure: masks are not the same for extra buttons");

            }

        }

        System.out.println("Test passed.");

    }

    public static void checkNullAndPutValuesToArray(int [] array, Object obj){

        if (obj == null){

            throw new RuntimeException("Test failed. The array obtained via reflection is "+obj);

        }

        for (int i = 0; i < Array.getLength(obj); i++){

            System.out.println("Test (Reflection): "+ Array.getInt(obj, i));

            array[i] = Array.getInt(obj, i);

        }

    }

}