MackeyMapUtil.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 elemental.events.KeyboardEvent.KeyCode;

/**
 * Support mac keys
 *
 * @author Evgen Vidolob
 */
public class MackeyMapUtil {
    public static final String ESCAPE      = "\u238B";
    public static final String TAB         = "\u21E5";
    public static final String TAB_BACK    = "\u21E4";
    public static final String CAPS_LOCK   = "\u21EA";
    public static final String SHIFT       = "\u21E7";
    public static final String CONTROL     = "\u2303";
    public static final String OPTION      = "\u2325";
    public static final String APPLE       = "\uF8FF";
    public static final String COMMAND     = "\u2318";
    public static final String SPACE       = "\u2423";
    public static final String RETURN      = "\u23CE";
    public static final String BACKSPACE   = "\u232B";
    public static final String DELETE      = "\u2326";
    public static final String HOME        = "\u2196";
    public static final String END         = "\u2198";
    public static final String PAGE_UP     = "\u21DE";
    public static final String PAGE_DOWN   = "\u21DF";
    public static final String UP          = "\u2191";
    public static final String DOWN        = "\u2193";
    public static final String LEFT        = "\u2190";
    public static final String RIGHT       = "\u2192";
    public static final String CLEAR       = "\u2327";
    public static final String NUMBER_LOCK = "\u21ED";
    public static final String ENTER       = "\u2324";
    public static final String EJECT       = "\u23CF";
    public static final String POWER3      = "\u233D";
    public static final String NUM_PAD     = "\u2328";

    public static String getModifiersText(int modifiers) {
        StringBuilder buf = new StringBuilder();
        if ((modifiers & ModifierKeys.CTRL) != 0) buf.append(CONTROL);
        if ((modifiers & ModifierKeys.ALT) != 0) buf.append(OPTION);
        if ((modifiers & ModifierKeys.SHIFT) != 0) buf.append(SHIFT);
        if ((modifiers & ModifierKeys.ACTION) != 0) buf.append(COMMAND);
        return buf.toString();

    }

    public static String getKeyText(int code) {
        switch (code) {
            case KeyCode.BACKSPACE:     return BACKSPACE;
            case KeyCode.ESC:         return ESCAPE;
            case KeyCode.CAPS_LOCK:      return CAPS_LOCK;
            case KeyCode.TAB:            return TAB;
            case KeyCode.SPACE:          return SPACE;
            case KeyCode.DELETE:         return DELETE;
            case KeyCode.HOME:           return HOME;
            case KeyCode.END:            return END;
            case KeyCode.PAGE_UP:        return PAGE_UP;
            case KeyCode.PAGE_DOWN:      return PAGE_DOWN;
            case KeyCode.UP:             return UP;
            case KeyCode.DOWN:           return DOWN;
            case KeyCode.LEFT:           return LEFT;
            case KeyCode.RIGHT:          return RIGHT;
            case KeyCode.ENTER:          return RETURN;
            case 0:                          return "fn";
        }
        return KeyCodeMap.getKeyText(code);
    }

    public static String getKeyStrokeText(CharCodeWithModifiers keyStroke) {
        final String modifiers = getModifiersText(keyStroke.getModifiers());
        final String key = getKeyText(keyStroke.getCharCode());
        return modifiers + key;
    }
}