ConversationPage.qml Example File

chattutorial/chapter4-models/ConversationPage.qml

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  ** This file is part of the examples of the Qt Toolkit.
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  import QtQuick 2.6
  import QtQuick.Layouts 1.3
  import QtQuick.Controls 2.0

  import io.qt.examples.chattutorial 1.0

  Page {
      id: root

      property string inConversationWith

      header: ToolBar {
          ToolButton {
              text: qsTr("Back")
              anchors.left: parent.left
              anchors.leftMargin: 10
              anchors.verticalCenter: parent.verticalCenter
              onClicked: root.StackView.view.pop()
          }

          Label {
              id: pageTitle
              text: inConversationWith
              font.pixelSize: 20
              anchors.centerIn: parent
          }
      }

      ColumnLayout {
          anchors.fill: parent

          ListView {
              id: listView
              Layout.fillWidth: true
              Layout.fillHeight: true
              Layout.margins: pane.leftPadding + messageField.leftPadding
              displayMarginBeginning: 40
              displayMarginEnd: 40
              verticalLayoutDirection: ListView.BottomToTop
              spacing: 12
              model: SqlConversationModel {
                  recipient: inConversationWith
              }
              delegate: Column {
                  anchors.right: sentByMe ? parent.right : undefined
                  spacing: 6

                  readonly property bool sentByMe: model.recipient !== "Me"

                  Row {
                      id: messageRow
                      spacing: 6
                      anchors.right: sentByMe ? parent.right : undefined

                      Image {
                          id: avatar
                          source: !sentByMe ? "qrc:/" + model.author + ".png" : ""
                      }

                      Rectangle {
                          width: Math.min(messageText.implicitWidth + 24,
                              listView.width - (!sentByMe ? avatar.width + messageRow.spacing : 0))
                          height: messageText.implicitHeight + 24
                          color: sentByMe ? "lightgrey" : "steelblue"

                          Label {
                              id: messageText
                              text: model.message
                              color: sentByMe ? "black" : "white"
                              anchors.fill: parent
                              anchors.margins: 12
                              wrapMode: Label.Wrap
                          }
                      }
                  }

                  Label {
                      id: timestampText
                      text: Qt.formatDateTime(model.timestamp, "d MMM hh:mm")
                      color: "lightgrey"
                      anchors.right: sentByMe ? parent.right : undefined
                  }
              }

              ScrollBar.vertical: ScrollBar {}
          }

          Pane {
              id: pane
              Layout.fillWidth: true

              RowLayout {
                  width: parent.width

                  TextArea {
                      id: messageField
                      Layout.fillWidth: true
                      placeholderText: qsTr("Compose message")
                      wrapMode: TextArea.Wrap
                  }

                  Button {
                      id: sendButton
                      text: qsTr("Send")
                      enabled: messageField.length > 0
                      onClicked: {
                          listView.model.sendMessage(inConversationWith, messageField.text);
                          messageField.text = "";
                      }
                  }
              }
          }
      }
  }