Qt WebChannel Chatclient QML Example | Qt WebChannel 5.4

- Qt 5.4
- Qt WebChannel
- Qt WebChannel Chatclient QML Example
- Qt 5.4.2 Reference Documentation

# Qt WebChannel Chatclient QML Example

The chatclient-html example provides a simple QWebChannel client implemented using JavaScript and QML.

## Overview

The client initializes a WebSocket connection to the chat server and receives an object containing all neccessarry signals, slots and properties for implementing a chat client.

After login, the client can invoke the method `sendMessage` and receive the signal `newMessage` to send and receive messages. Furthermore, there is a `userList` property which provides the names of all other connected clients. It is automatically updated when its contents change. Also, the client responds to the servers keep alive signal which is needed to detect disconnected clients and remove them from the `userList` property.

The example shows how basic elements can be used with the client JavaScript implementation of QWebChannel, like connecting to signals (`newMessage`), calling slots (`sendMessage`) and handle property changes (`userList`).

The client is able to work with the chatserver-cpp as server application

The example can be run by invoking `path/to/qmlscene qmlchatclient.qml`.

Files:

- chatclient-qml/qmlchatclient.qml
- chatclient-qml/chatclient-qml.pro

See also chatserver-cpp and chatclient-html.