Delete photo when marker or track is deleted

MyTracks/src/com/google/android/apps/mytracks/fragments/DeleteMarkerDialogFragment.java

@@ -88,9 +88,11 @@ public class DeleteMarkerDialogFragment extends DialogFragment {
             new Thread(new Runnable() {
                 @Override
               public void run() {
+                MyTracksProviderUtils myTracksProviderUtils = MyTracksProviderUtils.Factory.get(
+                    fragmentActivity);
                 for (long markerId : markerIds) {
-                  MyTracksProviderUtils.Factory.get(fragmentActivity)
-                      .deleteWaypoint(markerId, new DescriptionGeneratorImpl(fragmentActivity));
+                  myTracksProviderUtils.deleteWaypoint(
+                      markerId, new DescriptionGeneratorImpl(fragmentActivity));
                 }
                 caller.onDeleteMarkerDone();
               }

MyTracksLib/src/com/google/android/apps/mytracks/content/MyTracksProviderUtilsImpl.java

@@ -19,6 +19,7 @@ package com.google.android.apps.mytracks.content;
 import com.google.android.apps.mytracks.content.Sensor.SensorDataSet;
 import com.google.android.apps.mytracks.content.Waypoint.WaypointType;
 import com.google.android.apps.mytracks.stats.TripStatistics;
+import com.google.android.apps.mytracks.util.FileUtils;
 import com.google.protobuf.InvalidProtocolBufferException;
 
 import android.content.ContentResolver;
@@ -28,6 +29,7 @@ import android.location.Location;
 import android.net.Uri;
 import android.util.Log;
 
+import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.NoSuchElementException;
@@ -180,6 +182,9 @@ public class MyTracksProviderUtilsImpl implements MyTracksProviderUtils {
     contentResolver.delete(WaypointsColumns.CONTENT_URI, null, null);
     // Delete tracks last since it triggers a database vaccum call
     contentResolver.delete(TracksColumns.CONTENT_URI, null, null);
+
+    File dir = new File(FileUtils.getPath(FileUtils.PICTURES_DIR));
+    deleteDirectoryRecurse(dir);
   }
 
   @Override
@@ -208,6 +213,26 @@ public class MyTracksProviderUtilsImpl implements MyTracksProviderUtils {
     }
     contentResolver.delete(WaypointsColumns.CONTENT_URI, WaypointsColumns.TRACKID + "=?",
         new String[] { Long.toString(trackId) });
+    
+    File dir = new File(
+        FileUtils.getPath(FileUtils.PICTURES_DIR, Long.toString(trackId)));
+    deleteDirectoryRecurse(dir);  
+  }
+
+  /**
+   * Delete the directory recursively.
+   * 
+   * @param dir the directory
+   */
+  private void deleteDirectoryRecurse(File dir) {
+    if (FileUtils.isDirectory(dir)) {
+      for (File child : dir.listFiles()) {
+        deleteDirectoryRecurse(child);
+      }
+    }
+    if (dir.exists()) {
+      dir.delete();
+    }
   }
 
   @Override
@@ -499,6 +524,20 @@ public class MyTracksProviderUtilsImpl implements MyTracksProviderUtils {
         }
       }
     }
+    if (waypoint != null) {
+      String photoUrl = waypoint.getPhotoUrl();
+      if (photoUrl != null && !photoUrl.equals("")) {
+        Uri uri = Uri.parse(photoUrl);
+        File file = new File(uri.getPath());
+        if (file.exists()) {
+          File parent = file.getParentFile();
+          file.delete();
+          if (parent.listFiles().length == 0) {
+            parent.delete();
+          }
+        }                      
+      }
+    }
     contentResolver.delete(WaypointsColumns.CONTENT_URI, WaypointsColumns._ID + "=?",
         new String[] { Long.toString(waypointId) });
   }

MyTracksLib/src/com/google/android/apps/mytracks/util/FileUtils.java

@@ -15,8 +15,6 @@
  */
 package com.google.android.apps.mytracks.util;
 
-import com.google.common.annotations.VisibleForTesting;
-
 import android.os.Environment;
 
 import java.io.File;
@@ -43,14 +41,12 @@ public class FileUtils {
   /**
    * The My Tracks external storage directory.
    */
-  @VisibleForTesting
   static final String SDCARD_TOP_DIR = "MyTracks";
 
   /**
    * The maximum FAT32 path length. See the FAT32 spec at
    * http://msdn.microsoft.com/en-us/windows/hardware/gg463080
    */
-  @VisibleForTesting
   static final int MAX_FAT32_PATH_LENGTH = 260;
 
   /**
@@ -206,7 +202,6 @@ public class FileUtils {
    * 
    * @param name name
    */
-  @VisibleForTesting
   static String sanitizeFileName(String name) {
     StringBuffer buffer = new StringBuffer(name.length());
     for (int i = 0; i < name.length(); i++) {
@@ -266,7 +261,6 @@ public class FileUtils {
    * @param name name
    * @param suffix suffix
    */
-  @VisibleForTesting
   static String truncateFileName(File directory, String name, String suffix) {
     // 1 at the end accounts for the FAT32 filename trailing NUL character
     int requiredLength = directory.getPath().length() + suffix.length() + 1;