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<h1 class="title">chat.qml Example File</h1>
<span class="subtitle">chat/chat.qml</span>
<!-- $$$chat/chat.qml-description -->
<div class="descr"> <a name="details"></a>
<pre class="qml">
/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the QtBluetooth module.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.2
import QtBluetooth 5.3
Item {
id: top
Component.onCompleted: state = "begin"
property string remoteDeviceName: ""
property bool serviceFound: false
BluetoothDiscoveryModel {
id: btModel
running: true
discoveryMode: BluetoothDiscoveryModel.FullServiceDiscovery
onRunningChanged : {
if (!btModel.running && top.state == "begin" && !serviceFound) {
searchBox.animationRunning = false;
searchBox.appendText("\nNo service found. \n\nPlease start server\nand restart app.")
}
}
onErrorChanged: {
if (error != BluetoothDiscoveryModel.NoError && !btModel.running) {
searchBox.animationRunning = false
searchBox.appendText("\n\nDiscovery failed.\nPlease ensure Bluetooth is available.")
}
}
onServiceDiscovered: {
if (serviceFound)
return
serviceFound = true
console.log("Found new service " + service.deviceAddress + " " + service.deviceName + " " + service.serviceName);
searchBox.appendText("\nConnecting to server...")
remoteDeviceName = service.deviceName
socket.setService(service)
}
uuidFilter: targetUuid //e8e10f95-1a70-4b27-9ccf-02010264e9c8
}
BluetoothSocket {
id: socket
connected: true
onSocketStateChanged: {
switch (socketState) {
case BluetoothSocket.Unconnected:
case BluetoothSocket.NoServiceSet:
searchBox.animationRunning = false;
searchBox.setText("\nNo connection. \n\nPlease restart app.");
top.state = "begin";
break;
case BluetoothSocket.Connected:
console.log("Connected to server ");
top.state = "chatActive"; // move to chat UI
break;
case BluetoothSocket.Connecting:
case BluetoothSocket.ServiceLookup:
case BluetoothSocket.Closing:
case BluetoothSocket.Listening:
case BluetoothSocket.Bound:
break;
}
}
onStringDataChanged: {
console.log("Received data: " )
var data = remoteDeviceName + ": " + socket.stringData;
data = data.substring(0, data.indexOf('\n'))
chatContent.append({content: data})
console.log(data);
}
//...
}
ListModel {
id: chatContent
ListElement {
content: "Connected to chat server"
}
}
Rectangle {
id: background
z: 0
anchors.fill: parent
color: "#5d5b59"
}
Search {
id: searchBox
anchors.centerIn: top
opacity: 1
}
Rectangle {
id: chatBox
opacity: 0
anchors.centerIn: top
color: "#5d5b59"
border.color: "black"
border.width: 1
radius: 5
anchors.fill: parent
function sendMessage()
{
// toogle focus to force end of input method composer
var hasFocus = input.focus;
input.focus = false;
var data = input.text
input.clear()
chatContent.append({content: "Me: " + data})
socket.stringData = data
chatView.positionViewAtEnd()
input.focus = hasFocus;
}
Item {
anchors.fill: parent
anchors.margins: 10
InputBox {
id: input
Keys.onReturnPressed: chatBox.sendMessage()
height: sendButton.height
width: parent.width - sendButton.width - 15
anchors.left: parent.left
}
Button {
id: sendButton
anchors.right: parent.right
label: "Send"
onButtonClick: chatBox.sendMessage()
}
Rectangle {
height: parent.height - input.height - 15
width: parent.width;
color: "#d7d6d5"
anchors.bottom: parent.bottom
border.color: "black"
border.width: 1
radius: 5
ListView {
id: chatView
width: parent.width-5
height: parent.height-5
anchors.centerIn: parent
model: chatContent
clip: true
delegate: Component {
Text {
font.pointSize: 14
text: modelData
}
}
}
}
}
}
states: [
State {
name: "begin"
PropertyChanges { target: searchBox; opacity: 1 }
PropertyChanges { target: chatBox; opacity: 0 }
},
State {
name: "chatActive"
PropertyChanges { target: searchBox; opacity: 0 }
PropertyChanges { target: chatBox; opacity: 1 }
}
]
}
</pre>
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