Load HTML file in QWebView by QTcpServer

[fant]

Hi,

currently I writing a desktop application for playing YouTube playlists. Therefore a HTML file will be loaded from Qt resources into QML WebView.

WebView {
    anchors.centerIn: parent
    anchors.fill: parent
    id: webView
    opacity: 1
    url: "qrc:/View/Player/player.html?" + youTubeId;
}

In the HTML document the YouTube iFrame is included. So I have the opportunity to control the video by YouTube iFrame API.

But on this way the video can't be played, because the HTML document will be loaded as local file. I suppose that the webkit engine blocks the streaming request. For test I put the HTML file in a root directory of running Apache HTTP server and replaced the WebView url with localhost address: http://localhost:8080/player.html. As expected, it works then.

My next idea was writing a simple web server that is able deliver the HTML file by localhost address. I would like to implement it in my application, instead using an external server as Apache.
That's the point where my problem occurs: I can't get it. My server implementation doesn't respond to any HTTP request. Probably I'm forgot something very important or I have a very bad fallacy.

At first I wrote a custom server class:

class Server : public QTcpServer
{
    Q_OBJECT

    /* ... */

    protected:
        void incomingConnection(qintptr socketDescriptor);
};

Inside of incomingConnection method a debug message will be printed to console. My main method looks like this:

int main(int argc, char *argv[])
{
    Controller controller;
    controller.operate("");

    QCoreApplication app(argc, argv);
    return app.exec();
}

Controller class is copied from Qt documentation: Look here.
This is my implementation of doWork method from Worker class:

void Worker::doWork(const QString &)
{
    Server server;
    server.listen(QHostAddress::LocalHost, 8080);

    emit resultReady(QString("ready"));
}

When app is running, these lines will be executed, I checked it by debugger. The server is running, too (according to isListening method).
Now, when server is running (my Apache webserver does not, port is free^^) and I request this url: http://localhost:8080 in my web browser, the browser tab is loading long time, but won't complete and on console I get no response (debug message in incomingConnection).
When I stop the server, the browser stops loading immediately.

Some additional information that could be useful: I running my application in QtCreator with administrator rights. At first run my OS shows a dialogue to access network communication - I still approve it.

Does somebody know what I did wrong / how I could solve my problem or how I could take my next steps to analyze where it fails?

Thanks in advance.

[SGaist]

Hi,

First thing: QXXXApplication should be the first object created.

The your server object only lives in the method since it's a local variable. Thus as soon as the emit is done, the function ends and the object is destroyed.

[fant]

Oh My God, and it works. It really works. Of course. Not sure if I'm a fool. 😄

I'll continue with some other tests and adjustments in the next hours or days then I'll update this thread to fixed state.

Thank you for your help!