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+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtBrowser project.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPLv2 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef ENGINE_H
+#define ENGINE_H
+
+#include <QtCore/QEvent>
+#include <QtCore/QFileInfo>
+#include <QtCore/QUrl>
+#include <QtGui/QColor>
+#include <QtQuick/QQuickItemGrabResult>
+
+namespace utils {
+inline bool isTouchEvent(const QEvent* event)
+{
+    switch (event->type()) {
+    case QEvent::TouchBegin:
+    case QEvent::TouchUpdate:
+    case QEvent::TouchEnd:
+        return true;
+    default:
+        return false;
+    }
+}
+
+inline bool isMouseEvent(const QEvent* event)
+{
+    switch (event->type()) {
+    case QEvent::MouseButtonPress:
+    case QEvent::MouseMove:
+    case QEvent::MouseButtonRelease:
+    case QEvent::MouseButtonDblClick:
+        return true;
+    default:
+        return false;
+    }
+}
+
+inline int randomColor()
+{
+    return qrand() % 255;
+}
+
+}
+
+class Engine : public QObject {
+    Q_OBJECT
+
+    Q_PROPERTY(QObject * rootWindow READ rootWindow FINAL CONSTANT)
+
+public:
+    Engine(QObject *parent)
+        : QObject(parent)
+    {
+        qsrand(255);
+    }
+    QObject *rootWindow()
+    {
+        return parent();
+    }
+
+    Q_INVOKABLE static QUrl fromUserInput(const QString& userInput);
+    Q_INVOKABLE static QString domainFromString(const QString& urlString);
+    Q_INVOKABLE static QString randomColor();
+    Q_INVOKABLE static QString colorForIcon(QQuickItemGrabResult *result);
+    Q_INVOKABLE static QString oppositeColor(const QString & color);
+};
+
+#endif // ENGINE_H