// This Source Code is in the Public Domain per: http://unlicense.org
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, "IE", determineVersion() );
        mLegacyIE = (getVersion() < 9);
    }

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

    // ; MSIE 6.0;
    // 01234567890
    private static int determineVersion() {
        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;
    }
}