qmlchatclient.qml Example File
chatclient-qml/qmlchatclient.qml
import QtQuick 2.2
import QtQuick.Dialogs 1.2
import QtQuick.Controls 2.0
import QtQuick.Window 2.0
import QtQuick.Layouts 1.1
import Qt.WebSockets 1.0
import "qwebchannel.js" as WebChannel
ApplicationWindow {
id: root
property var channel
property string loginName: loginUi.userName.text
title: "Chat client"
width: 640
height: 480
visible: true
WebSocket {
id: socket
property var send: function(arg) {
sendTextMessage(arg);
}
onTextMessageReceived: {
onmessage({data: message});
}
property var onmessage
active: true
url: "ws://localhost:12345"
onStatusChanged: {
switch (socket.status) {
case WebSocket.Error:
errorDialog.text = "Error: " + socket.errorString;
errorDialog.visible = true;
break;
case WebSocket.Closed:
errorDialog.text = "Error: Socket at " + url + " closed.";
errorDialog.visible = true;
break;
case WebSocket.Open:
new WebChannel.QWebChannel(socket, function(ch) {
root.channel = ch;
ch.objects.chatserver.userListChanged.connect(function(args) {
mainUi.userlist.text = '';
ch.objects.chatserver.userList.forEach(function(user) {
mainUi.userlist.text += user + '\n';
});
});
ch.objects.chatserver.newMessage.connect(function(time, user, message) {
var line = "[" + time + "] " + user + ": " + message + '\n';
mainUi.chat.text = mainUi.chat.text + line;
});
ch.objects.chatserver.keepAlive.connect(function(args) {
if (loginName !== '')
ch.objects.chatserver.keepAliveResponse(loginName);
});
});
loginWindow.show();
break;
}
}
}
MainForm {
id: mainUi
anchors.fill: parent
Connections {
target: mainUi.message
onEditingFinished: {
if (mainUi.message.text.length) {
root.channel.objects.chatserver.sendMessage(loginName,
mainUi.message.text);
}
mainUi.message.text = '';
}
}
}
Window {
id: loginWindow
title: "Login"
modality: Qt.ApplicationModal
width: 300
height: 200
LoginForm {
id: loginUi
anchors.fill: parent
nameInUseError.visible: false
Connections {
target: loginUi.loginButton
onClicked: {
root.channel.objects.chatserver.login(loginName, function(arg) {
if (arg === true) {
loginUi.nameInUseError.visible = false;
loginWindow.close();
} else {
loginUi.nameInUseError.visible = true;
}
});
}
}
}
}
MessageDialog {
id: errorDialog
icon: StandardIcon.Critical
standardButtons: StandardButton.Close
title: "Chat client"
onAccepted: {
Qt.quit();
}
onRejected: {
Qt.quit();
}
}
}