Hide Bookmark menu for new dynamically generated playlists

The bookmark menu with the option to create a bookmark
was inadvertently displayed for new dynamic playlists,
that had no associated folder or playlist file on disk.
(e.g. after selecting some track from the database for
playback), until the playlist was modified by the user.

Change-Id: I9d6809e4d03603c651459415327f28e38162ad53

3 files changed, 23 insertions, 3 deletions

diff --git a/apps/bookmark.c b/apps/bookmark.c
index 0b468bdb76..3db049475d 100644
--- a/apps/bookmark.c
+++ b/apps/bookmark.c
@@ -1291,7 +1291,8 @@ bool bookmark_exists(void)
 
     char* name = playlist_get_name(NULL, global_temp_buffer,
                                    sizeof(global_temp_buffer));
-    if (generate_bookmark_file_name(bm_filename, sizeof(bm_filename), name, -1))
+    if (!playlist_dynamic_only() && 
+        generate_bookmark_file_name(bm_filename, sizeof(bm_filename), name, -1))
     {
         exist = file_exists(bm_filename);
     }
@@ -1311,8 +1312,10 @@ bool bookmark_is_bookmarkable_state(void)
         /* no track playing */
        (playlist_get_resume_info(&resume_index) == -1) ||
         /* invalid queue info */
-       (playlist_modified(NULL)))
-        /* can't bookmark while in the queue */
+       (playlist_modified(NULL)) ||
+        /* can't bookmark playlists modified by user */
+       (playlist_dynamic_only()))
+        /* can't bookmark playlists without associated folder or playlist file */
     {
         return false;
     }
diff --git a/apps/playlist.c b/apps/playlist.c
index 554e1afd7e..4440c77dbf 100644
--- a/apps/playlist.c
+++ b/apps/playlist.c
@@ -2699,6 +2699,22 @@ bool playlist_allow_dirplay(const struct playlist_info *playlist)
 }
 
 /*
+ * Returns true if the current playlist is neither
+ * associated  with a folder nor with an on-disk playlist.
+ */
+bool playlist_dynamic_only(void)
+{
+    /* NOTE: New dynamic playlists currently use root dir ("/")
+     *       as their placeholder filename – this could change.
+     */
+    if (!strcmp(current_playlist.filename, "/") &&
+        !(current_playlist.flags & PLAYLIST_FLAG_DIRPLAY))
+        return true;
+
+    return false;
+}
+
+/*
  * Move track at index to new_index.  Tracks between the two are shifted
  * appropriately.  Returns 0 on success and -1 on failure.
  */
diff --git a/apps/playlist.h b/apps/playlist.h
index 4c8800e594..101a3c1207 100644
--- a/apps/playlist.h
+++ b/apps/playlist.h
@@ -133,6 +133,7 @@ int playlist_get_display_index(void);
 int playlist_amount(void);
 void playlist_set_last_shuffled_start(void);
 struct playlist_info *playlist_get_current(void);
+bool playlist_dynamic_only(void);
 
 /* Exported functions for all playlists.  Pass NULL for playlist_info
    structure to work with current playlist. */