KeyMapUtil.java

/*******************************************************************************
 * Copyright (c) 2012-2017 Codenvy, S.A.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.ide.util.input;


import org.eclipse.che.ide.util.StringUtils;
import org.eclipse.che.ide.util.browser.UserAgent;

/**
 * @author Evgen Vidolob
 *
 */
public class KeyMapUtil {
    public static String getShortcutText(CharCodeWithModifiers shortcut) {
        String s = null;
        String acceleratorText = getKeystrokeText(shortcut);
        if (!acceleratorText.isEmpty()) {
            s = acceleratorText;
        }
        return s;
    }

    public static String getKeystrokeText(CharCodeWithModifiers accelerator) {
        if (accelerator == null) return "";
        if(UserAgent.isMac()){
            return MackeyMapUtil.getKeyStrokeText(accelerator);
        }
        String acceleratorText = "";
        int modifiers = accelerator.getModifiers();
        final int code = accelerator.getCharCode();
        String keyText = KeyCodeMap.getKeyText(code);
        if (StringUtils.isUpperCase((char)accelerator.getCharCode())) {
            modifiers |= ModifierKeys.SHIFT;
        }
        keyText = keyText.toUpperCase();
        if (modifiers > 0) {
            acceleratorText = getModifiersText(modifiers);
        }


        acceleratorText += keyText;
        return acceleratorText.trim();
    }

    private static String getModifiersText(int modifiers) {
        final String keyModifiersText = getKeyModifiersText(modifiers);
        if (keyModifiersText.isEmpty()) {
            return keyModifiersText;
        } else {
            return keyModifiersText + "+";
        }
    }

    /**
     * Returns a <code>String</code> describing the modifier key(s),
     * such as "Shift", or "Ctrl+Shift".
     */
    public static String getKeyModifiersText(int modifiers) {
        StringBuilder buf = new StringBuilder();

        if ((modifiers & ModifierKeys.ACTION) != 0) {
            if (UserAgent.isMac()) {
                buf.append("Cmd");
            } else {
                buf.append("Ctrl");
            }
            buf.append("+");
        }
        if ((modifiers & ModifierKeys.CTRL) != 0) {
            buf.append("Control");
            buf.append("+");
        }
        if ((modifiers & ModifierKeys.ALT) != 0) {
            buf.append("Alt");
            buf.append("+");
        }
        if ((modifiers & ModifierKeys.SHIFT) != 0) {
            buf.append("Shift");
            buf.append("+");
        }
        if (buf.length() > 0) {
            buf.setLength(buf.length() - 1); // remove trailing '+'
        }
        return buf.toString();
    }
}