Research supporting websocket in QtNetwork / QtDeclarative

Discussed at QtCS 2012:

• WebSocket client. Even a subset. looks at libwebsocket.
• Could integrate with qml so qml gets a signal.
• Would it need exposing to qtwebkit?
• Research project.

The protocol (RFC6455) is based on HTTP, and using the http channel as a socket after establishment.

There is a javascript API draft at http://dev.w3.org/html5/websockets/

We'd probably want to expose the javascript API in declarative apps.
We'd also want a C++ API (similar to the JS one but using Qt types and signals instead of callbacks)
The natural conclusion is that the JS API would wrap the C++ one.
(whether the C++ api supports sending typed arrays is another question.. it needs to support strings and byte arrays though)

For QNetworkAccessManager, we might need a way of detaching a QHttpNetworkConnectionChannel when it gets "upgraded" to a web socket.

Webkit already has a websocket implementation.
Does it work with QtWebkit?
Do we need to integrate with it?

Testing - we'd need a websocket server to test against.
If we only implement the client side in Qt, then we need something on the test server.
We'd probably want that for integration testing anyway.