// This Source Code is in the Public Domain per: http://litesoft.org/License.txt
package org.litesoft.GWT.client.nonpublic;

import org.litesoft.core.*;

public class NP_UserAgent_IE extends org.litesoft.GWT.client.UserAgent
{
    private boolean mLegacyIE;

    public NP_UserAgent_IE()
    {
        super( BrowserFamily.IE, "" );
        int zVersion = determineReal();
        mLegacyIE = (zVersion < 9);
        mReally = "IE" + zVersion;
    }

    @Override
    public boolean isLegacyIE()
    {
        return mLegacyIE;
    }

    // ; MSIE 6.0;
    // 01234567890
    private static int determineReal()
    {
        String zUserAgent = getBrowserUserAgent();
        int atStart = zUserAgent.indexOf("; MSIE ") + 7;
        int atEnd = zUserAgent.indexOf(".0;", atStart);
        if ( (atStart > 6) && (atEnd != -1) && (atEnd <= (atStart + 2)))
        {
            try {
                return Integer.parseInt(zUserAgent.substring(atStart,atEnd));
            } catch (NumberFormatException e) {
                // Really? Then Assume the default
            }
        }
        return 8;
    }
}