/*****************************************************/
/*          This java file is a part of the          */
/*                                                   */
/*           -  Plouf's Java IRC Client  -           */
/*                                                   */
/*   Copyright (C)  2002 - 2005 Philippe Detournay   */
/*                                                   */
/*         All contacts : theplouf@yahoo.com         */
/*                                                   */
/*  PJIRC is free software; you can redistribute     */
/*  it and/or modify it under the terms of the GNU   */
/*  General Public License as published by the       */
/*  Free Software Foundation; version 2 or later of  */
/*  the License.                                     */
/*                                                   */
/*  PJIRC 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   */
/*  General Public License for more details.         */
/*                                                   */
/*  You should have received a copy of the GNU       */
/*  General Public License along with PJIRC; if      */
/*  not, write to the Free Software Foundation,      */
/*  Inc., 59 Temple Place, Suite 330, Boston,        */
/*  MA  02111-1307  USA                              */
/*                                                   */
/*****************************************************/

package irc;

import java.applet.AppletContext;
import java.net.MalformedURLException;
import java.net.URL;

/**
 * URL handling via applet.
 */
public class AppletURLHandler implements URLHandler {

	private AppletContext _ctx;

	/**
	 * Create a new AppletURLHandler using the given AppletContext.
	 * 
	 * @param ctx
	 *          the applet context to use.
	 */
	public AppletURLHandler(AppletContext ctx) {
		_ctx = ctx;
	}

	private String replace(String on, String what, String with) {
		int pos = on.indexOf(what);
		while (pos >= 0) {
			String before = on.substring(0, pos);
			String after = on.substring(pos + what.length());
			on = before + with + after;
			pos = on.indexOf(what);
		}
		return on;
	}

	private URL decodeURL(String u) throws MalformedURLException {
		if (u.indexOf("://") == -1)
			u = "http://" + u;
		replace(u, " ", "%20");
		return new URL(u);
	}

	@Override
	public void stateURL(String url) {
		try {
			_ctx.showStatus(decodeURL(url).toString());
		} catch (Exception e) {
			throw new RuntimeException(e.toString());
		}
	}

	@Override
	public void openURL(String url) {
		openURL(url, "_blank");
	}

	@Override
	public void openURL(String url, String target) {
		try {
			_ctx.showDocument(decodeURL(url), target);
		} catch (Exception e) {
			throw new RuntimeException(e.toString());
		}
	}
}