/* ******************************************************************************
* Copyright (c) 2006-2012 XMind Ltd. and others.
*
* This file is a part of XMind 3. XMind releases 3 and
* above are dual-licensed under the Eclipse Public License (EPL),
* which is available at http://www.eclipse.org/legal/epl-v10.html
* and the GNU Lesser General Public License (LGPL),
* which is available at http://www.gnu.org/licenses/lgpl.html
* See http://www.xmind.net/license.html for details.
*
* Contributors:
* XMind Ltd. - initial API and implementation
*******************************************************************************/
package org.xmind.ui.browser;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.util.Util;
import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTError;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.LocationEvent;
import org.eclipse.swt.browser.LocationListener;
import org.eclipse.swt.browser.StatusTextEvent;
import org.eclipse.swt.browser.StatusTextListener;
import org.eclipse.swt.browser.TitleEvent;
import org.eclipse.swt.browser.TitleListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PartInitException;
/**
* @author briansun
*/
public abstract class BrowserDialog extends Dialog {
protected static final String COMMAND_PROTOCOL = "xmind://"; //$NON-NLS-1$
protected static final String COMMAND_CANCEL = "cancel"; //$NON-NLS-1$
protected static final String COMMAND_SKIP = "skip"; //$NON-NLS-1$
protected static final String COMMAND_OPEN = "open"; //$NON-NLS-1$
private class BrowserListener implements StatusTextListener, TitleListener,
LocationListener {
/**
* @see org.eclipse.swt.browser.StatusTextListener#changed(org.eclipse.swt.browser.StatusTextEvent)
*/
public void changed(StatusTextEvent event) {
checkCommand(event.text);
}
/**
* @see org.eclipse.swt.browser.TitleListener#changed(org.eclipse.swt.browser.TitleEvent)
*/
public void changed(TitleEvent event) {
String t = event.title;
if (t != null && t.startsWith("xmind:")) //$NON-NLS-1$
browser.getShell().setText(t.substring(6));
}
/**
* @see org.eclipse.swt.browser.LocationListener#changed(org.eclipse.swt.browser.LocationEvent)
*/
public void changed(LocationEvent event) {
}
/**
* @see org.eclipse.swt.browser.LocationListener#changing(org.eclipse.swt.browser.LocationEvent)
*/
public void changing(LocationEvent event) {
if (checkCommand(event.location))
event.doit = false;
}
private boolean checkCommand(String href) {
if (href.startsWith(COMMAND_PROTOCOL)) {
String commandLine = href.substring(COMMAND_PROTOCOL.length());
return execCommandLine(commandLine);
}
return false;
}
}
private Browser browser;
private BrowserListener browserListener = new BrowserListener();
/**
* @param parentWindow
*/
public BrowserDialog(Shell parent) {
super(parent);
}
/**
* @see org.eclipse.jface.dialogs.Dialog#createContents(org.eclipse.swt.widgets.Composite)
*/
@Override
protected Control createContents(Composite parent) {
try {
browser = new Browser(parent, SWT.MOZILLA);
} catch (SWTError e) {
browser = new Browser(parent, SWT.NONE);
}
browser.setLayoutData(new GridData(GridData.FILL_BOTH));
browser.addStatusTextListener(browserListener);
browser.addTitleListener(browserListener);
browser.addLocationListener(browserListener);
String text = getInitialText();
if (text != null)
browser.setText(text);
else {
String url = getInitialURL();
if (url != null)
browser.setUrl(url);
}
if (Util.isMac())
browser.refresh();
return browser;
}
protected Browser getBrowser() {
return browser;
}
/**
* @see org.eclipse.jface.dialogs.Dialog#getInitialSize()
*/
@Override
protected Point getInitialSize() {
return new Point(500, 325);
}
/**
* @see org.eclipse.jface.dialogs.Dialog#getInitialLocation(org.eclipse.swt.graphics.Point)
*/
@Override
protected Point getInitialLocation(Point initialSize) {
Rectangle r = Display.getCurrent().getClientArea();
return new Point((r.width - initialSize.x) / 2,
(r.height - initialSize.y) / 2);
}
/**
* @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
*/
@Override
protected void createButtonsForButtonBar(Composite parent) {
// use html buttons
}
protected String getInitialText() {
return null;
}
protected String getInitialURL() {
return null;
}
protected boolean execCommandLine(String commandLine) {
String[] commands = commandLine.split("/"); //$NON-NLS-1$
if (commands.length > 1) {
String commandName = commands[0];
String[] params = new String[commands.length - 1];
System.arraycopy(commands, 1, params, 0, commands.length - 1);
return execCommand(commandName, params);
}
return false;
}
protected boolean execCommand(String commandName, String[] params) {
if (COMMAND_CANCEL.equals(commandName)) {
return performCancel();
} else if (COMMAND_SKIP.equals(commandName)) {
return performSkip();
} else if (COMMAND_OPEN.equals(commandName)) {
return performOpen(params);
}
return false;
}
protected boolean performOpen(String[] params) {
if (params.length > 0) {
String url = params[0];
try {
url = URLDecoder.decode(url, "utf-8"); //$NON-NLS-1$
} catch (UnsupportedEncodingException e) {
}
try {
BrowserSupport.getInstance().createBrowser().openURL(url);
return true;
} catch (PartInitException e) {
// TODO handle this
}
}
return false;
}
protected boolean performSkip() {
setReturnCode(IDialogConstants.CLOSE_ID);
return super.close();
}
protected boolean performCancel() {
setReturnCode(CANCEL);
return super.close();
}
}
