Add 'markdowneditor' example

This example shows the use of QWebEngineView in a hybrid application,
and how one can leverage JavaScript libraries to provide functionality
with minimal effort.

QWebEngineView is used to preview a MarkDown document. The text is
exposed to the view through QWebChannel. An off-the-self js library
converts it to HTML.

Change-Id: I24c38106da3ec18975c71c16f7f7a58e93142f9e
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/examples/webenginewidgets/markdowneditor/document.h b/examples/webenginewidgets/markdowneditor/document.h
new file mode 100644
index 000000000..d2f33ec81
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+++ b/examples/webenginewidgets/markdowneditor/document.h
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+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** 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 DOCUMENT_H
+#define DOCUMENT_H
+
+#include <QObject>
+#include <QString>
+
+class Document : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QString text MEMBER m_text NOTIFY textChanged)
+public:
+    explicit Document(QObject *parent = nullptr) : QObject(parent) {}
+
+    void setText(const QString &text);
+
+signals:
+    void textChanged(const QString &text);
+
+private:
+    QString m_text;
+};
+
+#endif // DOCUMENT_H