2 files changed, 21 insertions, 2 deletions
diff --git a/Swift/QtUI/QtJoinMUCWindow.cpp b/Swift/QtUI/QtJoinMUCWindow.cpp
index 14777bd..4884bbd 100644
--- a/Swift/QtUI/QtJoinMUCWindow.cpp
+++ b/Swift/QtUI/QtJoinMUCWindow.cpp
@@ -1,36 +1,38 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
+ * Copyright (c) 2010-2012 Remko Tronçon
  * Licensed under the GNU General Public License v3.
  * See Documentation/Licenses/GPLv3.txt for more information.
  */
 
+
 #include "QtJoinMUCWindow.h"
-#include "QtSwiftUtil.h"
 #include <boost/smart_ptr/make_shared.hpp>
 #include <Swift/Controllers/UIEvents/UIEventStream.h>
 #include <Swift/Controllers/UIEvents/JoinMUCUIEvent.h>
 
 namespace Swift {
 
+
 QtJoinMUCWindow::QtJoinMUCWindow(UIEventStream* uiEventStream) : uiEventStream(uiEventStream) {
 	ui.setupUi(this);
 #if QT_VERSION >= 0x040700
 	ui.room->setPlaceholderText(tr("someroom@rooms.example.com"));
 #endif
 	connect(ui.room, SIGNAL(returnPressed()), this, SLOT(handleJoin()));
 	connect(ui.searchButton, SIGNAL(clicked()), this, SLOT(handleSearch()));
 	connect(ui.joinButton, SIGNAL(clicked()), this, SLOT(handleJoin()));
 	// FIXME: Temporarily set focus on the nickName field first, so that the
 	// placeholder for the room is visible. This is just because Qt hides 
 	// the placeholder when a widget is focused for some reason.
 	ui.nickName->setFocus();
 	ui.instantRoom->setChecked(true);
+	ui.nickName->setValidator(new NickValidator(this));
 }
 
 void QtJoinMUCWindow::handleJoin() {
 	if (ui.room->text().isEmpty()) {
 		// TODO: Error
 		return;
 	}
 	if (ui.nickName->text().isEmpty()) {
 		// TODO: Error
diff --git a/Swift/QtUI/QtJoinMUCWindow.h b/Swift/QtUI/QtJoinMUCWindow.h
index 90b4f3f..c7e2d74 100644
--- a/Swift/QtUI/QtJoinMUCWindow.h
+++ b/Swift/QtUI/QtJoinMUCWindow.h
@@ -1,23 +1,40 @@
 /*
  * Copyright (c) 2010 Remko Tronçon
  * Licensed under the GNU General Public License v3.
  * See Documentation/Licenses/GPLv3.txt for more information.
  */
 
 #pragma once
 
+#include <QValidator>
 #include <string>
+#include "QtSwiftUtil.h"
 #include <Swift/Controllers/UIInterfaces/JoinMUCWindow.h>
 #include <Swift/QtUI/ui_QtJoinMUCWindow.h>
 
 namespace Swift {
 	class UIEventStream;
+	class NickValidator : public QValidator {
+		Q_OBJECT
+		public:
+			NickValidator(QObject* parent) : QValidator(parent) {
+			}
+
+			virtual QValidator::State validate(QString& input, int& /*pos*/) const {
+				if (input.isEmpty()) {
+					return QValidator::Acceptable;
+				}
+				JID test("alice", "wonderland.lit", Q2PSTRING(input));
+
+				return test.isValid() ? QValidator::Acceptable : QValidator::Invalid;
+			}
+	};
 	class QtJoinMUCWindow : public QWidget, public JoinMUCWindow {
 			Q_OBJECT
 		public:
 			QtJoinMUCWindow(UIEventStream* uiEventStream);
 
 			virtual void setNick(const std::string& nick);
 			virtual void setMUC(const std::string& nick);
 
 			virtual void show();