1/****************************************************************************
2**
3** Copyright (C) 2017 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff <milian.wolff@kdab.com>
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtWebChannel module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:BSD$
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17** BSD License Usage
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19** as follows:
20**
21** "Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions are
23** met:
24** * Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
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49****************************************************************************/
50
51#ifndef CORE_H
52#define CORE_H
53
54#include "dialog.h"
55#include <QObject>
56
57/*
58 An instance of this class gets published over the WebChannel and is then accessible to HTML clients.
59*/
60class Core : public QObject
61{
62 Q_OBJECT
63
64public:
65 Core(Dialog *dialog, QObject *parent = nullptr)
66 : QObject(parent), m_dialog(dialog)
67 {
68 connect(sender: dialog, signal: &Dialog::sendText, receiver: this, slot: &Core::sendText);
69 }
70
71signals:
72 /*
73 This signal is emitted from the C++ side and the text displayed on the HTML client side.
74 */
75 void sendText(const QString &text);
76
77public slots:
78
79 /*
80 This slot is invoked from the HTML client side and the text displayed on the server side.
81 */
82 void receiveText(const QString &text)
83 {
84 m_dialog->displayMessage(message: Dialog::tr(s: "Received message: %1").arg(a: text));
85 }
86
87private:
88 Dialog *m_dialog;
89};
90
91#endif // CORE_H
92

source code of qtwebchannel/examples/webchannel/standalone/core.h