enabled "lock all" from tray menu (#297, #863)

main/ui/src/main/java/org/cryptomator/ui/traymenu/TrayMenuController.java

@@ -116,6 +116,11 @@ class TrayMenuController {
 		}
 		menu.addSeparator();
 
+		MenuItem lockAllItem = new MenuItem(resourceBundle.getString("traymenu.lockAllVaults"));
+		lockAllItem.addActionListener(this::lockAllVaults);
+		lockAllItem.setEnabled(!vaults.filtered(Vault::isUnlocked).isEmpty());
+		menu.add(lockAllItem);
+
 		MenuItem quitApplicationItem = new MenuItem(resourceBundle.getString("traymenu.quitApplication"));
 		quitApplicationItem.addActionListener(this::quitApplication);
 		menu.add(quitApplicationItem);
@@ -153,6 +158,10 @@ class TrayMenuController {
 		fxApplicationStarter.get(true).thenAccept(app -> app.getVaultService().lock(vault, false));
 	}
 
+	private void lockAllVaults(ActionEvent actionEvent) {
+		fxApplicationStarter.get(true).thenAccept(app -> app.getVaultService().lockAll(vaults.filtered(Vault::isUnlocked), false));
+	}
+
 	private void revealVault(Vault vault) {
 		fxApplicationStarter.get(true).thenAccept(app -> app.getVaultService().reveal(vault));
 	}

main/ui/src/main/resources/i18n/strings.properties

@@ -18,6 +18,7 @@ generic.error.instruction=This should not have happened. Please report the error
 # Tray Menu
 traymenu.showMainWindow=Show
 traymenu.showPreferencesWindow=Preferences
+traymenu.lockAllVaults=Lock All
 traymenu.quitApplication=Quit
 traymenu.vault.unlock=Unlock
 traymenu.vault.lock=Lock