FS#6960 - Add random selection option to database, by Mark Reiche. This satisfies FS#6915.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15957 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 30 insertions, 3 deletions

diff --git a/apps/lang/english.lang b/apps/lang/english.lang
index 2589576c14..2eadfc4d1a 100644
--- a/apps/lang/english.lang
+++ b/apps/lang/english.lang
@@ -11512,4 +11512,17 @@
     ipodvideo: "Treble Cutoff"
   </voice>
 </phrase>
-
+<phrase>
+  id: LANG_TAGNAVI_RANDOM
+  desc: "<Random>" entry in tag browser
+  user:
+  <source>
+    *: "<Random>"
+  </source>
+  <dest>
+    *: "<Random>"
+  </dest>
+  <voice>
+    *: "Random"
+  </voice>
+</phrase>
diff --git a/apps/tagtree.c b/apps/tagtree.c
index 8298fe24ae..d394491960 100644
--- a/apps/tagtree.c
+++ b/apps/tagtree.c
@@ -1136,7 +1136,15 @@ static int retrieve_entries(struct tree_context *c, struct tagcache_search *tcs,
             dptr++;
             current_entry_count++;
         }
-        special_entry_count++;
+        if (offset <= 1)
+        {
+            dptr->newtable = navibrowse;
+            dptr->name = str(LANG_TAGNAVI_RANDOM);
+            dptr->extraseek = -1;
+            dptr++;
+            current_entry_count++;
+        }
+        special_entry_count+=2;
     }
     
     total_count += special_entry_count;
@@ -1374,8 +1382,14 @@ int tagtree_enter(struct tree_context* c)
     dptr = tagtree_get_entry(c, c->selected_item);
     
     c->dirfull = false;
+    seek = dptr->extraseek;   
+    if (seek == -1) 
+    {
+        srand(current_tick);
+        dptr = (tagtree_get_entry(c, 2+(rand() % (c->filesindir-2))));
+        seek = dptr->extraseek;
+    }
     newextra = dptr->newtable;
-    seek = dptr->extraseek;
 
     if (c->dirlevel >= MAX_DIR_LEVELS)
         return 0;