Java tutorial
/******************************************************************************* * Copyright (c) 2016 Sebastian Stenzel and others. * This file is licensed under the terms of the MIT license. * See the LICENSE.txt file for more info. * * Contributors: * Sebastian Stenzel - initial API and implementation * Jean-Nol Charon - implementation of github issue #56 *******************************************************************************/ package org.cryptomator.ui; import java.awt.AWTException; import java.awt.Image; import java.awt.MenuItem; import java.awt.PopupMenu; import java.awt.SystemTray; import java.awt.Toolkit; import java.awt.TrayIcon; import java.awt.TrayIcon.MessageType; import java.awt.event.ActionEvent; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.io.IOException; import java.util.Optional; import java.util.concurrent.TimeUnit; import javax.inject.Inject; import javax.inject.Named; import javax.inject.Singleton; import javax.script.ScriptEngine; import javax.script.ScriptEngineManager; import javax.script.ScriptException; import javax.swing.SwingUtilities; import org.apache.commons.lang3.SystemUtils; import org.cryptomator.jni.JniException; import org.cryptomator.jni.MacApplicationUiState; import org.cryptomator.jni.MacFunctions; import org.cryptomator.ui.settings.Localization; import org.cryptomator.ui.settings.Settings; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import javafx.application.Platform; import javafx.stage.Stage; @Singleton class ExitUtil { private static final Logger LOG = LoggerFactory.getLogger(ExitUtil.class); private final Stage mainWindow; private final Localization localization; private final Settings settings; private final Optional<MacFunctions> macFunctions; @Inject public ExitUtil(@Named("mainWindow") Stage mainWindow, Localization localization, Settings settings, Optional<MacFunctions> macFunctions) { this.mainWindow = mainWindow; this.localization = localization; this.settings = settings; this.macFunctions = macFunctions; } public void initExitHandler(Runnable exitCommand) { if (SystemUtils.IS_OS_LINUX) { initMinimizeExitHandler(exitCommand); } else { initTrayIconExitHandler(exitCommand); } } private void initMinimizeExitHandler(Runnable exitCommand) { mainWindow.setOnCloseRequest(e -> { if (Platform.isImplicitExit()) { exitCommand.run(); } else { mainWindow.setIconified(true); e.consume(); } }); } private void initTrayIconExitHandler(Runnable exitCommand) { final TrayIcon trayIcon = createTrayIcon(exitCommand); try { // double clicking tray icon should open Cryptomator if (SystemUtils.IS_OS_WINDOWS) { trayIcon.addMouseListener(new TrayIconMouseListener()); } SystemTray.getSystemTray().add(trayIcon); mainWindow.setOnCloseRequest((e) -> { if (Platform.isImplicitExit()) { exitCommand.run(); } else { macFunctions.map(MacFunctions::uiState) .ifPresent(JniException.ignore(MacApplicationUiState::transformToAgentApplication)); mainWindow.close(); this.showTrayNotification(trayIcon); } }); } catch (SecurityException | AWTException ex) { // not working? then just go ahead and close the app mainWindow.setOnCloseRequest((ev) -> { exitCommand.run(); }); } } private TrayIcon createTrayIcon(Runnable exitCommand) { final PopupMenu popup = new PopupMenu(); final MenuItem showItem = new MenuItem(localization.getString("tray.menu.open")); showItem.addActionListener(this::restoreFromTray); popup.add(showItem); final MenuItem exitItem = new MenuItem(localization.getString("tray.menu.quit")); exitItem.addActionListener(e -> exitCommand.run()); popup.add(exitItem); final Image image; if (SystemUtils.IS_OS_MAC_OSX && isMacMenuBarDarkMode()) { image = Toolkit.getDefaultToolkit().getImage(getClass().getResource("/tray_icon_mac_white.png")); } else if (SystemUtils.IS_OS_MAC_OSX) { image = Toolkit.getDefaultToolkit().getImage(getClass().getResource("/tray_icon_mac_black.png")); } else { image = Toolkit.getDefaultToolkit().getImage(getClass().getResource("/tray_icon.png")); } return new TrayIcon(image, localization.getString("app.name"), popup); } /** * @return true if <code>defaults read -g AppleInterfaceStyle</code> has an exit status of <code>0</code> (i.e. _not_ returning "key not found"). */ private boolean isMacMenuBarDarkMode() { try { // check for exit status only. Once there are more modes than "dark" and "default", we might need to analyze string contents.. final Process proc = Runtime.getRuntime() .exec(new String[] { "defaults", "read", "-g", "AppleInterfaceStyle" }); proc.waitFor(100, TimeUnit.MILLISECONDS); return proc.exitValue() == 0; } catch (IOException | InterruptedException | IllegalThreadStateException ex) { // IllegalThreadStateException thrown by proc.exitValue(), if process didn't terminate LOG.warn("Determining MAC OS X dark mode settings failed. Assuming default (light) mode."); return false; } } private void showTrayNotification(TrayIcon trayIcon) { if (settings.getNumTrayNotifications() <= 0) { return; } else { settings.setNumTrayNotifications(settings.getNumTrayNotifications() - 1); settings.save(); } final Runnable notificationCmd; if (SystemUtils.IS_OS_MAC_OSX) { final String title = localization.getString("tray.infoMsg.title"); final String msg = localization.getString("tray.infoMsg.msg.osx"); final String notificationCenterAppleScript = String .format("display notification \"%s\" with title \"%s\"", msg, title); notificationCmd = () -> { try { final ScriptEngineManager mgr = new ScriptEngineManager(); final ScriptEngine engine = mgr.getEngineByName("AppleScriptEngine"); if (engine != null) { engine.eval(notificationCenterAppleScript); } else { Runtime.getRuntime() .exec(new String[] { "/usr/bin/osascript", "-e", notificationCenterAppleScript }); } } catch (ScriptException | IOException e) { // ignore, user will notice the tray icon anyway. } }; } else { final String title = localization.getString("tray.infoMsg.title"); final String msg = localization.getString("tray.infoMsg.msg"); notificationCmd = () -> { trayIcon.displayMessage(title, msg, MessageType.INFO); }; } SwingUtilities.invokeLater(() -> { notificationCmd.run(); }); } private class TrayIconMouseListener extends MouseAdapter { @Override public void mouseClicked(MouseEvent e) { if (e.getButton() == MouseEvent.BUTTON1 && e.getClickCount() == 2) { restoreFromTray(new ActionEvent(e.getSource(), e.getID(), e.paramString())); } } } private void restoreFromTray(ActionEvent event) { Platform.runLater(() -> { macFunctions.map(MacFunctions::uiState) .ifPresent(JniException.ignore(MacApplicationUiState::transformToForegroundApplication)); mainWindow.show(); mainWindow.requestFocus(); }); } }