chat.qml Example File

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  ** This file is part of the examples of the QtBluetooth module.
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  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.MinimalServiceDiscovery
          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: "e8e10f95-1a70-4b27-9ccf-02010264e9c8"
      }

      BluetoothSocket {
          id: socket
          connected: true

          onSocketStateChanged: {
              console.log("Connected to server")
              top.state = "chatActive"
          }
          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 }
          }
      ]
  }