Map: explicitly reload selected map on click

When clicking on a flag
 1) The QML would call MapLocationModel::setSelected() with
    fromClick = true
 2) MapLocationModel::setSelected() would emit a signal
    selectedLocationChanged()
 3) MapWidgetHelper would catch that signal and do the actual
    processing.
Other functions would call MapLocationModel::setSelected() with
fromClick = false, which would not emit the selectedLocationChanged()
signal.

Detangle this a bit by calling the selectedLocationChanged() function
directly from QML and remove the fromClick parameter.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

map-widget/qml/MapWidget.qml

@@ -69,8 +69,10 @@ Item {
 						drag.target: (mapHelper.editMode && mapHelper.model.isSelected(model.divesite)) ? mapItem : undefined
 						anchors.fill: parent
 						onClicked: {
-							if (!mapHelper.editMode && model.divesite)
+							if (!mapHelper.editMode && model.divesite) {
-								mapHelper.model.setSelected(model.divesite, true)
+								mapHelper.model.setSelected(model.divesite)
+								mapHelper.selectedLocationChanged(model.divesite)
+							}
 						}
 						onDoubleClicked: map.doubleClickHandler(mapItem.coordinate)
 						onReleased: {

map-widget/qmlmapwidgethelper.cpp

@@ -21,8 +21,6 @@ MapWidgetHelper::MapWidgetHelper(QObject *parent) : QObject(parent)
 	m_smallCircleRadius = SMALL_CIRCLE_RADIUS_PX;
 	m_map = nullptr;
 	m_editMode = false;
-	connect(m_mapLocationModel, SIGNAL(selectedLocationChanged(MapLocation *)),
-	        this, SLOT(selectedLocationChanged(MapLocation *)));
 	connect(&diveListNotifier, &DiveListNotifier::diveSiteChanged, this, &MapWidgetHelper::diveSiteChanged);
 }
 
@@ -37,11 +35,11 @@ void MapWidgetHelper::centerOnDiveSite(struct dive_site *ds)
 {
 	if (!dive_site_has_gps_location(ds)) {
 		// dive site with no GPS
-		m_mapLocationModel->setSelected(ds, false);
+		m_mapLocationModel->setSelected(ds);
 		QMetaObject::invokeMethod(m_map, "deselectMapLocation");
 	} else {
 		// dive site with GPS
-		m_mapLocationModel->setSelected(ds, false);
+		m_mapLocationModel->setSelected(ds);
 		QGeoCoordinate dsCoord (ds->location.lat.udeg * 0.000001, ds->location.lon.udeg * 0.000001);
 		QMetaObject::invokeMethod(m_map, "centerOnCoordinate", Q_ARG(QVariant, QVariant::fromValue(dsCoord)));
 	}
@@ -114,12 +112,19 @@ void MapWidgetHelper::reloadMapLocations()
 	m_mapLocationModel->reload(m_map);
 }
 
-void MapWidgetHelper::selectedLocationChanged(MapLocation *location)
+void MapWidgetHelper::selectedLocationChanged(struct dive_site *ds_in)
 {
 	int idx;
 	struct dive *dive;
 	QList<int> selectedDiveIds;
+
+	if (!ds_in)
+		return;
+	MapLocation *location = m_mapLocationModel->getMapLocation(ds_in);
+	if (!location)
+		return;
 	QGeoCoordinate locationCoord = location->coordinate();
+
 	for_each_dive (idx, dive) {
 		struct dive_site *ds = get_dive_site_for_dive(dive);
 		if (!dive_site_has_gps_location(ds))

map-widget/qmlmapwidgethelper.h

@@ -35,6 +35,7 @@ public:
 	Q_INVOKABLE void calculateSmallCircleRadius(QGeoCoordinate coord);
 	Q_INVOKABLE void updateCurrentDiveSiteCoordinatesFromMap(struct dive_site *ds, QGeoCoordinate coord);
 	Q_INVOKABLE void selectVisibleLocations();
+	Q_INVOKABLE void selectedLocationChanged(struct dive_site *ds);
 	QString pluginObject();
 
 private:
@@ -45,7 +46,6 @@ private:
 	bool m_editMode;
 
 private slots:
-	void selectedLocationChanged(MapLocation *);
 	void diveSiteChanged(struct dive_site *ds, int field);
 
 signals:

qt-models/maplocationmodel.cpp

@@ -193,14 +193,11 @@ void MapLocationModel::reload(QObject *map)
 	endResetModel();
 }
 
-void MapLocationModel::setSelected(struct dive_site *ds, bool fromClick)
+void MapLocationModel::setSelected(struct dive_site *ds)
 {
 	m_selectedDs.clear();
-	if (!ds)
+	if (ds)
-		return;
 		m_selectedDs.append(ds);
-	if (fromClick)
-		emit selectedLocationChanged(getMapLocation(ds));
 }
 
 bool MapLocationModel::isSelected(const QVariant &dsVariant) const

qt-models/maplocationmodel.h

@@ -65,7 +65,7 @@ public:
 	void reload(QObject *map);
 	MapLocation *getMapLocation(const struct dive_site *ds);
 	const QVector<dive_site *> &selectedDs() const;
-	Q_INVOKABLE void setSelected(struct dive_site *ds, bool fromClick = true);
+	Q_INVOKABLE void setSelected(struct dive_site *ds);
 	// The dive site is passed as a QVariant, because a null-QVariant is not automatically
 	// transformed into a null pointer and warning messages are spewed onto the console.
 	Q_INVOKABLE bool isSelected(const QVariant &ds) const;
@@ -83,7 +83,6 @@ private:
 
 signals:
 	void countChanged(int c);
-	void selectedLocationChanged(MapLocation *);
 };
 
 #endif