Fixed crash on track without style

kml/serdes.cpp

@@ -44,6 +44,7 @@ std::string const kExtendedDataFooter =
 auto const kDefaultLang = StringUtf8Multilang::kDefaultCode;
 
 auto const kDefaultTrackWidth = 5.0;
+auto const kDefaultTrackColor = 0xe51b23ff;
 
 std::string Indent(size_t count)
 {
@@ -734,7 +735,7 @@ void KmlParser::Pop(std::string const & tag)
     TrackLayer layer;
     layer.m_lineWidth = m_trackWidth;
     layer.m_color.m_predefinedColor = PredefinedColor::None;
-    layer.m_color.m_rgba = m_color;
+    layer.m_color.m_rgba = (m_color != 0 ? m_color : kDefaultTrackColor);
     m_trackLayers.push_back(std::move(layer));
 
     m_trackWidth = kDefaultTrackWidth;
@@ -859,7 +860,7 @@ void KmlParser::CharData(std::string value)
         TrackLayer layer;
         layer.m_lineWidth = GetTrackWidthForStyle(value);
         layer.m_color.m_predefinedColor = PredefinedColor::None;
-        layer.m_color.m_rgba = m_color;
+        layer.m_color.m_rgba = (m_color != 0 ? m_color : kDefaultTrackColor);
         m_trackLayers.push_back(std::move(layer));
       }
       else if (currTag == "description")
@@ -993,6 +994,15 @@ void KmlParser::CharData(std::string value)
   }
 }
 
+// static
+kml::TrackLayer KmlParser::GetDefaultTrackLayer()
+{
+  kml::TrackLayer layer;
+  layer.m_lineWidth = kDefaultTrackWidth;
+  layer.m_color.m_rgba = kDefaultTrackColor;
+  return layer;
+}
+
 DeserializerKml::DeserializerKml(FileData & fileData)
   : m_fileData(fileData)
 {

kml/serdes.hpp

@@ -70,6 +70,8 @@ public:
   void Pop(std::string const & tag);
   void CharData(std::string value);
 
+  static kml::TrackLayer GetDefaultTrackLayer();
+
 private:
   enum GeometryType
   {

map/bookmark_helpers.cpp

@@ -11,6 +11,21 @@
 #include "coding/file_reader.hpp"
 #include "coding/file_writer.hpp"
 
+namespace
+{
+void ValidateKmlData(std::unique_ptr<kml::FileData> & data)
+{
+  if (!data)
+    return;
+
+  for (auto & t : data->m_tracksData)
+  {
+    if (t.m_layers.empty())
+      t.m_layers.emplace_back(kml::KmlParser::GetDefaultTrackLayer());
+  }
+}
+}  // namespace
+
 std::unique_ptr<kml::FileData> LoadKmlFile(std::string const & file, bool useBinary)
 {
   std::unique_ptr<kml::FileData> kmlData;
@@ -35,14 +50,15 @@ std::unique_ptr<kml::FileData> LoadKmlData(Reader const & reader, bool useBinary
   {
     if (useBinary)
     {
-      kml::binary::DeserializerKml des(*data.get());
+      kml::binary::DeserializerKml des(*data);
       des.Deserialize(reader);
     }
     else
     {
-      kml::DeserializerKml des(*data.get());
+      kml::DeserializerKml des(*data);
       des.Deserialize(reader);
     }
+    ValidateKmlData(data);
   }
   catch (Reader::Exception const & e)
   {
@@ -69,7 +85,7 @@ std::unique_ptr<kml::FileData> LoadKmlData(Reader const & reader, bool useBinary
 
 bool SaveKmlFile(kml::FileData & kmlData, std::string const & file, bool useBinary)
 {
-  bool success = false;
+  bool success;
   try
   {
     FileWriter writer(file);

map/track.cpp

@@ -57,11 +57,13 @@ size_t Track::GetLayerCount() const
 
 dp::Color Track::GetColor(size_t layerIndex) const
 {
+  CHECK_LESS(layerIndex, m_data.m_layers.size(), ());
   return dp::Color(m_data.m_layers[layerIndex].m_color.m_rgba);
 }
 
 float Track::GetWidth(size_t layerIndex) const
 {
+  CHECK_LESS(layerIndex, m_data.m_layers.size(), ());
   return static_cast<float>(m_data.m_layers[layerIndex].m_lineWidth);
 }