Simplify custom-extension example

Don't confuse people by creating the extension inside a platform plugin.
It's only necessary when modifying Qt's default behaviour, and we're not going
to teach that in this example.

Also remove the load/unload extension logic from the qml example. Don't make
people believe that they have to use a loader.

Change-Id: Id263bb7d77fba176bfb8b6843a6ece9a0a203754
Reviewed-by: Johan Helsing <johan.helsing@qt.io>
Reviewed-by: Pier Luigi Fiorini <pierluigi.fiorini@hawaiios.org>

1 files changed, 103 insertions, 0 deletions

diff --git a/examples/wayland/custom-extension/cpp-client/main.cpp b/examples/wayland/custom-extension/cpp-client/main.cpp
new file mode 100644
index 000000000..f5894dc81
--- /dev/null
+++ b/examples/wayland/custom-extension/cpp-client/main.cpp
@@ -0,0 +1,103 @@
+/****************************************************************************
+ **
+ ** Copyright (C) 2015 The Qt Company Ltd.
+ ** Contact: http://www.qt.io/licensing/
+ **
+ ** This file is part of the examples of the Qt Wayland module
+ **
+ ** $QT_BEGIN_LICENSE:BSD$
+ ** You may use this file under the terms of the BSD license as follows:
+ **
+ ** "Redistribution and use in source and binary forms, with or without
+ ** modification, are permitted provided that the following conditions are
+ ** met:
+ **   * Redistributions of source code must retain the above copyright
+ **     notice, this list of conditions and the following disclaimer.
+ **   * Redistributions in binary form must reproduce the above copyright
+ **     notice, this list of conditions and the following disclaimer in
+ **     the documentation and/or other materials provided with the
+ **     distribution.
+ **   * Neither the name of The Qt Company Ltd nor the names of its
+ **     contributors may be used to endorse or promote products derived
+ **     from this software without specific prior written permission.
+ **
+ **
+ ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+ **
+ ** $QT_END_LICENSE$
+ **
+ ****************************************************************************/
+
+#include <QGuiApplication>
+#include <QRasterWindow>
+#include <QPainter>
+#include <QMouseEvent>
+#include "../client-common/customextension.h"
+
+#include <QDebug>
+
+class TestWindow : public QRasterWindow
+{
+    Q_OBJECT
+
+public:
+    TestWindow(CustomExtension *customExtension)
+        : m_extension(customExtension)
+    {
+            connect(customExtension, SIGNAL(eventReceived(const QString &, uint)),
+                    this, SLOT(handleEvent(const QString &, uint)));
+    }
+
+public slots:
+    void handleEvent(const QString &text, uint value)
+    {
+        qDebug() << "Client application received event" << text << value;
+    }
+
+protected:
+    void paintEvent(QPaintEvent *)
+    {
+        QPainter p(this);
+        p.fillRect(QRect(0,0,width(),height()),Qt::gray);
+        p.fillRect(50,50,100,100, QColor("#C0FFEE"));
+    }
+
+    void mousePressEvent(QMouseEvent *ev) Q_DECL_OVERRIDE
+    {
+        bool insideRect = QRect(50,50,100,100).contains(ev->pos());
+
+        QString text = insideRect ? "Click inside" : "Click outside";
+        int value = ev->pos().x();
+
+        qDebug() << "Client application sending request:" << text << value;
+
+        m_extension->sendRequest(text, value);
+    }
+
+private:
+    CustomExtension *m_extension;
+};
+
+int main (int argc, char **argv)
+{
+    QGuiApplication app(argc, argv);
+
+    CustomExtension customExtension;
+
+    TestWindow window(&customExtension);
+    window.show();
+
+    return app.exec();
+}
+
+#include "main.moc"