source: trunk/quest-ui-core/src/de/ugoe/cs/quest/plugin/mfc/HandlerDestroy.java @ 434

package de.ugoe.cs.quest.plugin.mfc;

import de.ugoe.cs.quest.plugin.mfc.eventcore.WindowTree;

/**
 * <p>
 * Handler for {@code WM_DESTROY} message. The handler maintains the
 * {@link WindowTree}.
 * </p>
 * 
 * @author Steffen Herbold
 * @version 1.0
 */
public class HandlerDestroy extends MessageHandler {

        /**
         * <p>
         * Constructor. Creates a new HandlerDestroy.
         * </p>
         */
        public HandlerDestroy() {
                super();
        }

        /**
         * <p>
         * HWND of the window that is destroyed.
         * </p>
         */
        private int hwnd;

        /*
         * (non-Javadoc)
         * 
         * @see de.ugoe.cs.quest.plugin.mfc.MessageHandler#onEndElement()
         */
        @Override
        public void onEndElement() {
                if (hwnd != 0) {
                        WindowTree.getInstance().remove(hwnd);
                }
        }

        /*
         * (non-Javadoc)
         * 
         * @see
         * de.ugoe.cs.quest.plugin.mfc.MessageHandler#onParameter(java.lang.String
         * , java.lang.String)
         */
        @Override
        public void onParameter(String name, String value) {
                if (name.equals("window.hwnd")) {
                        hwnd = Integer.parseInt(value);
                }
        }

        /*
         * (non-Javadoc)
         * 
         * @see de.ugoe.cs.quest.plugin.mfc.MessageHandler#onStartElement()
         */
        @Override
        public void onStartElement() {
                hwnd = 0;
        }

}