KeyboardEmulator.java Source code

Introduction

Here is the source code for KeyboardEmulator.java

Source

import java.awt.*;
import java.awt.event.KeyEvent;

import static org.apache.commons.lang3.StringUtils.isBlank;

/**
 * Created by BeyMelamed on 2/3/14.
 * Selenium Based Automation Project
 *
 * =============================================================================
 * Copyright 2014 Avraham (Bey) Melamed.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 *
 * Description
 * Emulates a keyboard in cases where the keyboard should be used outside of web page
 * Example: File Dialog
 * When      |Who            |What
 * ==========|===============|========================================================
 * 02/03/14  |Bey            |Initial Version
 * ==========|===============|========================================================
 */
public class KeyboardEmulator extends Thread {
    private final static int Shift = KeyEvent.VK_SHIFT;
    private final static int Enter = KeyEvent.VK_ENTER;
    private final static int Tab = KeyEvent.VK_TAB;
    private static Robot kb;
    private static String text;
    private static String shiftChars = "!@#$%^&*()_+{}:\"<>?";
    private static String unShiftChars = "1234567890-=[];',./";

    public static void setKeyboard(Robot value) {
        kb = value;
    }

    public static Robot getKeyboard() throws AWTException {
        if (kb == null) {
            try {
                setKeyboard(new Robot());
            } catch (AWTException e) {
            }
        }
        return kb;
    }

    public static void setText(String value) {
        text = value;
    }

    public static String getText() {
        if (isBlank(text)) {
            setText("");
        }
        return text;
    }

    public static String type(String s, boolean appendEnter) throws AWTException {
        if (isBlank(s))
            return s;

        String typed = "";
        try {
            Robot keyboard = getKeyboard();
            int size = s.length();
            char c;
            for (int i = 0; i < size; i++) {
                c = s.charAt(i);
                int idx = shiftChars.indexOf(c);
                if (idx > -1) {
                    char cc = unShiftChars.charAt(idx);
                    keyboard.keyPress(Shift);
                    keyboard.keyPress(KeyEvent.getExtendedKeyCodeForChar(cc));
                    keyboard.keyRelease(KeyEvent.getExtendedKeyCodeForChar(cc));
                    keyboard.keyRelease(Shift);
                } else {
                    keyboard.keyPress(KeyEvent.getExtendedKeyCodeForChar(c));
                    keyboard.keyRelease(KeyEvent.getExtendedKeyCodeForChar(c));
                }
                typed += String.valueOf(c);
            }
            if (appendEnter) {
                keyboard.keyPress(Enter);
                keyboard.keyRelease(Enter);
            }
        } catch (AWTException e) {

        } finally {
            return typed;
        }
    }

}