com.liferay.util.JS.java Source code

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Here is the source code for com.liferay.util.JS.java

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/**
 * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.util;

import com.liferay.portal.kernel.util.CharPool;
import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.UnicodeFormatter;

import java.net.URLDecoder;
import java.net.URLEncoder;

/**
 * @author Brian Wing Shun Chan
 * @author Shuyang Zhou
 */
public class JS {

    public static String getSafeName(String name) {
        if (name == null) {
            return null;
        }

        StringBuilder sb = null;

        int index = 0;

        for (int i = 0; i < name.length(); i++) {
            char c = name.charAt(i);

            switch (c) {
            case CharPool.SPACE:

            case CharPool.DASH:

            case CharPool.PERIOD:
                if (sb == null) {
                    sb = new StringBuilder(name.length() - 1);

                    sb.append(name, index, i);
                }

                break;

            default:
                if (sb != null) {
                    sb.append(c);
                }
            }
        }

        if (sb == null) {
            return name;
        } else {
            return sb.toString();
        }
    }

    /**
     * @deprecated Use <code>encodeURIComponent</code>.
     */
    public static String escape(String s) {
        return encodeURIComponent(s);
    }

    /**
     * @deprecated Use <code>decodeURIComponent</code>.
     */
    public static String unescape(String s) {
        return decodeURIComponent(s);
    }

    public static String encodeURIComponent(String s) {

        // Encode URL

        try {
            s = URLEncoder.encode(s, StringPool.UTF8);
        } catch (Exception e) {
        }

        // Adjust for JavaScript specific annoyances

        s = StringUtil.replace(s, "+", "%20");
        s = StringUtil.replace(s, "%2B", "+");

        return s;
    }

    public static String decodeURIComponent(String s) {

        // Get rid of all unicode

        s = s.replaceAll("%u[0-9a-fA-F]{4}", StringPool.BLANK);

        // Adjust for JavaScript specific annoyances

        s = StringUtil.replace(s, "+", "%2B");
        s = StringUtil.replace(s, "%20", "+");

        // Decode URL

        try {
            s = URLDecoder.decode(s, StringPool.UTF8);
        } catch (Exception e) {
        }

        return s;
    }

    public static String toScript(String[] array) {
        StringBundler sb = new StringBundler(array.length * 4 + 2);

        sb.append(StringPool.OPEN_BRACKET);

        for (int i = 0; i < array.length; i++) {
            sb.append(StringPool.APOSTROPHE);
            sb.append(UnicodeFormatter.toString(array[i]));
            sb.append(StringPool.APOSTROPHE);

            if (i + 1 < array.length) {
                sb.append(StringPool.COMMA);
            }
        }

        sb.append(StringPool.CLOSE_BRACKET);

        return sb.toString();
    }

}