Ticket #12369: DefaultExtensionReadFromPreferences.patch

src/org/openstreetmap/josm/actions/GpxExportAction.java

@@ -82 +82 @@
             throw new IllegalArgumentException(MessageFormat.format("Expected instance of OsmDataLayer or GpxLayer. Got ''{0}''.",
                     layer.getClass().getName()));
 
-        File file = createAndOpenSaveFileChooser(tr("Export GPX file"), GpxImporter.FILE_FILTER);
+        File file = createAndOpenSaveFileChooser(tr("Export GPX file"), GpxImporter.getFileFilter());
         if (file == null)
             return;
 

src/org/openstreetmap/josm/gui/layer/GpxLayer.java

@@ -362 +362 @@
 
     @Override
     public File createAndOpenSaveFileChooser() {
-        return SaveActionBase.createAndOpenSaveFileChooser(tr("Save GPX file"), GpxImporter.FILE_FILTER);
+        return SaveActionBase.createAndOpenSaveFileChooser(tr("Save GPX file"), GpxImporter.getFileFilter());
     }
 
 }

src/org/openstreetmap/josm/gui/layer/OsmDataLayer.java

@@ -964 +964 @@
 
     @Override
     public File createAndOpenSaveFileChooser() {
-        return SaveActionBase.createAndOpenSaveFileChooser(tr("Save OSM file"), "osm");
+        String extension = Main.pref.get("save.extension.osm", "osm");
+        return SaveActionBase.createAndOpenSaveFileChooser(tr("Save OSM file"), extension);
     }
 
     @Override

src/org/openstreetmap/josm/io/GpxExporter.java

@@ -62 +62 @@
      * Constructs a new {@code GpxExporter}.
      */
     public GpxExporter() {
-        super(GpxImporter.FILE_FILTER);
+        super(GpxImporter.getFileFilter());
     }
 
     @Override

src/org/openstreetmap/josm/io/GpxImporter.java

@@ -25 +25 @@
 public class GpxImporter extends FileImporter {
 
     /**
-     * The GPX file filter (*.gpx and *.gpx.gz files).
-     */
-    public static final ExtensionFileFilter FILE_FILTER = ExtensionFileFilter.newFilterWithArchiveExtensions(
-            "gpx", "gpx", tr("GPX Files"), true);
-
-    /**
      * Utility class containing imported GPX and marker layers, and a task to run after they are added to MapView.
      */
     public static class GpxImporterData {
@@ -70 +64 @@
      * Constructs a new {@code GpxImporter}.
      */
     public GpxImporter() {
-        super(FILE_FILTER);
+        super(getFileFilter());
+    }
+
+    /**
+     * Returns a GPX file filter (*.gpx and *.gpx.gz files).
+     */
+    public static ExtensionFileFilter getFileFilter() {
+        return ExtensionFileFilter.newFilterWithArchiveExtensions(
+            "gpx", Main.pref.get("save.extension.gpx", "gpx"), tr("GPX Files"), true);
     }
 
     @Override