Haskell: Import from superrepo

Change-Id: I83c6c817c78ccbf1aee65847777f2652e19275a5
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/haskell/haskellmanager.h

@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <QObject>
+
+#include <utils/fileutils.h>
+
+QT_BEGIN_NAMESPACE
+class QSettings;
+QT_END_NAMESPACE
+
+namespace Haskell {
+namespace Internal {
+
+class HaskellManager : public QObject
+{
+    Q_OBJECT
+
+public:
+    static HaskellManager *instance();
+
+    static Utils::FilePath findProjectDirectory(const Utils::FilePath &filePath);
+    static Utils::FilePath stackExecutable();
+    static void setStackExecutable(const Utils::FilePath &filePath);
+    static void openGhci(const Utils::FilePath &haskellFile);
+    static void readSettings(QSettings *settings);
+    static void writeSettings(QSettings *settings);
+
+signals:
+    void stackExecutableChanged(const Utils::FilePath &filePath);
+};
+
+} // namespace Internal
+} // namespace Haskell