// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.GWT.eventbus.client;

import org.litesoft.GWT.client.*;

public class WindowNameClientIdCodec {
    private String mEncodedClientIdSuffix;

    public WindowNameClientIdCodec( AppNames pAppNames ) {
        mEncodedClientIdSuffix = "_" + pAppNames.getShortAllLettersClientName() + "_";
    }

    /**
     * Window Name is the name of the new window.
     * <p/>
     * This name cannot contain spaces or special characters, but can be quite long (on the order of 2MB).
     * <p/>
     * Known good characters as US Letters (both upper & lower case), digits, and underscore ('_').
     * <p/>
     * Special / reserved Names are:
     * _blank      Loads the linked document into a new blank window. This window is not named.
     * _parent     Loads the linked document into the immediate parent of the document the link is in.
     * _self       Loads the linked document into the same window the link was clicked in (the active window).
     * _top        Loads the linked document into the topmost window.
     * _search     Loads the linked document into the browser's search pane.
     * (Available in Internet Explorer 5 or later)
     */
    public String createWindowName( String pEncodedClientId ) {
        return mEncodedClientIdSuffix + pEncodedClientId;
    }

    public String extractEncodedClientId( String pWindowName ) {
        if ( pWindowName != null ) {
            int at = pWindowName.indexOf( mEncodedClientIdSuffix );
            if ( at != -1 ) {
                return pWindowName.substring( at + mEncodedClientIdSuffix.length() ).trim();
            }
        }
        return "";
    }
}