QML UI: keep QML manager and the UI in sync about selected dive

The manager can now directly update the index of the selected dive, and
the UI tells the manager the timestamp of the currently selected dive.
This allows the manager to pick the best possible dive as selected dive
if things change (for example if the dive list gets reloaded because it
changed in cloud storage).

Fixes #1009

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/mobile-widgets/qmlmanager.cpp b/mobile-widgets/qmlmanager.cpp
index 569f1ac80..51a06f0a6 100644
--- a/mobile-widgets/qmlmanager.cpp
+++ b/mobile-widgets/qmlmanager.cpp
@@ -385,6 +385,8 @@ void QMLManager::loadDivesWithValidCredentials()
 		return;
 	}
 	appendTextToLog("Cloud sync brought newer data, reloading the dive list");
+	timestamp_t currentDiveTimestamp = selectedDiveTimestamp();
+
 	clear_dive_file_data();
 	if (git != dummy_git_repository) {
 		appendTextToLog(QString("have repository and branch %1").arg(branch));
@@ -414,6 +416,7 @@ void QMLManager::loadDivesWithValidCredentials()
 	DiveListModel::instance()->clear();
 	process_dives(false, false);
 	DiveListModel::instance()->addAllDives();
+	setUpdateSelectedDive(dlSortModel->getIdxForId(get_dive_id_closest_to(currentDiveTimestamp)));
 	appendTextToLog(QStringLiteral("%1 dives loaded").arg(dive_table.nr));
 	if (dive_table.nr == 0)
 		setStartPageText(tr("Cloud storage open successfully. No dives in dive list."));
@@ -1128,6 +1131,28 @@ void QMLManager::setSyncToCloud(bool status)
 	emit syncToCloudChanged();
 }
 
+int QMLManager::updateSelectedDive() const
+{
+	return m_updateSelectedDive;
+}
+
+void QMLManager::setUpdateSelectedDive(int idx)
+{
+	m_updateSelectedDive = idx;
+	emit updateSelectedDiveChanged();
+}
+
+int QMLManager::selectedDiveTimestamp() const
+{
+	return m_selectedDiveTimestamp;
+}
+
+void QMLManager::setSelectedDiveTimestamp(int when)
+{
+	m_selectedDiveTimestamp = when;
+	emit selectedDiveTimestampChanged();
+}
+
 qreal QMLManager::lastDevicePixelRatio()
 {
 	return m_lastDevicePixelRatio;