How to use QWebView with Qt 5.3.1 ?

[A Former User]

Hi,
I just wanted to display and listen this "web radio page":http://www.caenfm.net in a QtWebView.
My code is minimalistic:
QWebView2.pro
@QT += core gui
QT += webkitwidgets
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = QWebView2
TEMPLATE = app
SOURCES += main.cpp
mainwindow.cpp
HEADERS += mainwindow.h
FORMS += mainwindow.ui
@

main.cpp
@#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();

return a.exec();

}@

mainwindow.h
@#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QWebView>
#include <QWebSettings>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private slots:
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H@

mainwindow.cpp
@#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
QWebSettings::globalSettings()->setAttribute(QWebSettings::PluginsEnabled, true);
QUrl url("http://www.caenfm.net");
ui->webView->load(url);
ui->webView->adjustSize();
this->setFixedWidth(ui->webView->width());
this->setFixedHeight(200); //---> The height is variable
}
MainWindow::~MainWindow()
{
delete ui;
}@

mainwindow.ui
@[...]
<widget class="QWidget" name="centralWidget">
<widget class="QWebView" name="webView">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>300</width>
<height>200</height>
</rect>
</property>
<property name="url">
<url>
<string>about:blank</string>
</url>
</property>
</widget>
</widget>
[...]@

In the web page, that is the object "On Air" witch "generates" the sound.

!http://www.selzig.com/1408132100/object.png(Object HTML)!
@<div>
<div class="widget-content">
<object width="240" height="300">
<param name="allowscriptaccess" value="always" />
<param name="movie" value="http://static.radionomy.com/cdn/flash/BannerEmbed.swf?RadUID=69ee2bc8-8ae4-4658-9256-94e2fd4f5482&titlesColor=000000&color=f20000&autoPlay=yes&lang=fr" />
<param name="wmode" value="transparent" />
<embed src="http://static.radionomy.com/cdn/flash/BannerEmbed.swf?RadUID=69ee2bc8-8ae4-4658-9256-94e2fd4f5482&titlesColor=000000&color=f20000&autoPlay=yes&lang=fr" wmode="transparent" type="application/x-shockwave-flash" allowscriptaccess="always" width="240" height="300"></embed>
</object>
</div>
</div>@

I note that at least a part of "On Air" object should be visible on the QWebView to listen for the sound generated by the swf.

initial test : this->setFixedHeight(200);
"On air" is not visible : Display OK - No sound
!http://www.selzig.com/1408132100/nosound.png(height = 200)!

After using the vertical scroll to make the "On Air" appear, the sound is OK.
!http://www.selzig.com/1408132100/vscroll.png(height = 200-after vscroll)!

Second test : this->setFixedHeight(400);
"On Air" is directly apparent : Sound OK.
!http://www.selzig.com/1408132100/sound.png(height = 400)!

Is it a normal behaviour ? So how do you get around that to get the sound whatever the size of the QWebView ?

Regards. Gilles
PS : Qt 5.3.1 : Identical issues when running on Windos 7-32 (VS2010-x86), Windows 7-64 (VS2013-amd64), Ubuntu 14.04-32 and Ubuntu 14.04-64