mapwidgethelper: use dynamic creation of the Plugin object

The googlemaps plugin is about to support tile language
via the PluginParameter 'googlemaps.maps.language'.
To be able to pass the subsurface UI language (obtained
from the uiLanguage() helper) the Plugin has to be created
dynamically, only *after* the MapWidgetHelper is created.

MapWidgetHelper::pluginObject() now provides a QString which
contains the Plugin object and also include the uiLanguage
ISO value.

This string is used in mapwidget.qml as:
map.plugin = Qt.createQmlObject(pluginObject, rootItem)

This creates the Plugin object dynamically with the proper
UI language string, but also requires a couple of small changes:
- move the declaration of map.mapType after the
Qt.createQmlObject() call
- assign map.activeMapType after map.mapType has a value

Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>

mobile-widgets/qml/MapWidget.qml

@@ -5,17 +5,9 @@ import QtPositioning 5.3
 import org.subsurfacedivelog.mobile 1.0
 
 Item {
+	id: rootItem
 	property int nSelectedDives: 0
 
-	Plugin {
-		id: mapPlugin
-		name: "googlemaps"
-		Component.onCompleted: {
-			if (availableServiceProviders.indexOf(name) === -1)
-				console.warn("MapWidget.qml: cannot find a plugin with the name '" + name + "'")
-		}
-	}
-
 	MapWidgetHelper {
 		id: mapHelper
 		map: map
@@ -23,15 +15,19 @@ Item {
 		onSelectedDivesChanged: nSelectedDives = list.length
 		onEditModeChanged: editMessage.isVisible = editMode === true ? 1 : 0
 		onCoordinatesChanged: {}
+		Component.onCompleted: {
+			map.plugin = Qt.createQmlObject(pluginObject, rootItem)
+			map.mapType = { "STREET": map.supportedMapTypes[0], "SATELLITE": map.supportedMapTypes[1] }
+			map.activeMapType = map.mapType.SATELLITE
+		}
 	}
 
 	Map {
 		id: map
 		anchors.fill: parent
-		plugin: mapPlugin
 		zoomLevel: 1
 
-		readonly property var mapType: { "STREET": supportedMapTypes[0], "SATELLITE": supportedMapTypes[1] }
+		property var mapType
 		readonly property var defaultCenter: QtPositioning.coordinate(0, 0)
 		readonly property real defaultZoomIn: 12.0
 		readonly property real defaultZoomOut: 1.0
@@ -42,7 +38,6 @@ Item {
 		property real newZoomOut: 1.0
 		property var clickCoord: QtPositioning.coordinate(0, 0)
 
-		Component.onCompleted: activeMapType = mapType.SATELLITE
 		onZoomLevelChanged: mapHelper.calculateSmallCircleRadius(map.center)
 
 		MapItemView {

mobile-widgets/qmlmapwidgethelper.cpp

@@ -8,6 +8,7 @@
 #include "qmlmapwidgethelper.h"
 #include "core/dive.h"
 #include "core/divesite.h"
+#include "core/helpers.h"
 #include "qt-models/maplocationmodel.h"
 
 #define MIN_DISTANCE_BETWEEN_DIVE_SITES_M 50.0
@@ -238,3 +239,23 @@ void MapWidgetHelper::setEditMode(bool editMode)
 	}
 	emit editModeChanged();
 }
+
+QString MapWidgetHelper::pluginObject()
+{
+	QString str;
+	str += "import QtQuick 2.0;";
+	str += "import QtLocation 5.3;";
+	str += "Plugin {";
+	str += "    id: mapPlugin;";
+	str += "    name: 'googlemaps';";
+	str += "    PluginParameter { name: 'googlemaps.maps.language'; value: '%lang%' }";
+	str += "    Component.onCompleted: {";
+	str += "        if (availableServiceProviders.indexOf(name) === -1) {";
+	str += "            console.warn('MapWidget.qml: cannot find a plugin named: ' + name);";
+	str += "        }";
+	str += "    }";
+	str += "}";
+	QString lang = uiLanguage(NULL).replace('_', '-');
+	str.replace("%lang%", lang);
+	return str;
+}

mobile-widgets/qmlmapwidgethelper.h

@@ -15,6 +15,7 @@ class MapWidgetHelper : public QObject {
 	Q_PROPERTY(QObject *map MEMBER m_map)
 	Q_PROPERTY(MapLocationModel *model MEMBER m_mapLocationModel NOTIFY modelChanged)
 	Q_PROPERTY(bool editMode READ editMode WRITE setEditMode NOTIFY editModeChanged)
+	Q_PROPERTY(QString pluginObject READ pluginObject NOTIFY pluginObjectChanged)
 
 public:
 	explicit MapWidgetHelper(QObject *parent = NULL);
@@ -27,6 +28,7 @@ public:
 	Q_INVOKABLE void selectVisibleLocations();
 	bool editMode();
 	void setEditMode(bool editMode);
+	QString pluginObject();
 
 private:
 	QObject *m_map;
@@ -43,6 +45,7 @@ signals:
 	void editModeChanged();
 	void selectedDivesChanged(QList<int> list);
 	void coordinatesChanged();
+	void pluginObjectChanged();
 };
 
 extern "C" const char *printGPSCoords(int lat, int lon);