[Feature] onplay.c show file progress

first some clean-up of onplay.c

extend/move fileobject copy, move, delete routines in prep for other users

add error checking, better error codes
pre scan to make sure the operation doesn't exceed system resources
show progress for file and directory copies

Change-Id: Ife2e62df554892dab651bab40433bf70b27e73ff

1 files changed, 4 insertions, 0 deletions

diff --git a/apps/misc.h b/apps/misc.h
index c6485db4ff..e5fb7a3d1f 100644
--- a/apps/misc.h
+++ b/apps/misc.h
@@ -277,4 +277,8 @@ long to_normalized_volume(long vol, long min_vol, long max_vol, long max_norm);
  * for the given normalized volume. */
 long from_normalized_volume(long norm, long min_vol, long max_vol, long max_norm);
 
+/* clear the lcd output buffer, if update is true the cleared buffer
+ * will be written to the lcd */
+void clear_screen_buffer(bool update);
+
 #endif /* MISC_H */