add basic support for the Qt virtual keyboard

nymea-app/main.cpp

@@ -35,6 +35,7 @@
 
 int main(int argc, char *argv[])
 {
+
     QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QGuiApplication application(argc, argv);
     application.setApplicationName("nymea-app");
@@ -82,6 +83,8 @@ int main(int argc, char *argv[])
 
     engine->rootContext()->setContextProperty("systemProductType", QSysInfo::productType());
 
+    engine->rootContext()->setContextProperty("useVirtualKeyboard", qgetenv("QT_IM_MODULE") == "qtvirtualkeyboard");
+
     application.setWindowIcon(QIcon(QString(":/styles/%1/logo.svg").arg(styleController.currentStyle())));
 
     engine->load(QUrl(QLatin1String("qrc:/ui/Nymea.qml")));

nymea-app/resources.qrc

@@ -238,5 +238,6 @@
         <file>ui/components/MainPageTile.qml</file>
         <file>ui/images/configure.svg</file>
         <file>ui/images/network-wifi-symbolic.svg</file>
+        <file>ui/KeyboardLoader.qml</file>
     </qresource>
 </RCC>

nymea-app/ui/KeyboardLoader.qml

@@ -0,0 +1,24 @@
+import QtQuick 2.0
+
+Item {
+    id: root
+    implicitHeight: childrenRect.height
+
+    property string virtualKeyboardString:
+        '
+        import QtQuick 2.8;
+        import QtQuick.VirtualKeyboard 2.1
+        InputPanel {
+            id: inputPanel
+            y: Qt.inputMethod.visible ? parent.height - inputPanel.height : parent.height
+            anchors.left: parent.left
+            anchors.right: parent.right
+        }
+        '
+
+    Component.onCompleted: {
+        if (useVirtualKeyboard) {
+            var kbd = Qt.createQmlObject(virtualKeyboardString, root);
+        }
+    }
+}

nymea-app/ui/Nymea.qml

@@ -366,4 +366,9 @@ ApplicationWindow {
             }
         }
     }
+
+    KeyboardLoader {
+        anchors { left: parent.left; bottom: parent.bottom; right: parent.right }
+
+    }
 }