FS11473: Add bookmarking option: one per track.

Modified version from ticket, taken from Igor Poretsky's tree, and
further modified to incorporate feedback.

Change-Id: I9284497d53a0247a51739d29fdc1db5fbbebfadc

6 files changed, 108 insertions, 30 deletions

diff --git a/apps/bookmark.c b/apps/bookmark.c
index 567f98ac29..f783c83992 100644
--- a/apps/bookmark.c
+++ b/apps/bookmark.c
@@ -271,6 +271,19 @@ static bool write_bookmark(bool create_bookmark_file, const char *bookmark)
     return ret;
 }
 
+/* Get the name of the playlist and the name of the track from a bookmark. */
+/* Returns true iff both were extracted.                                   */
+static bool get_playlist_and_track(const char *bookmark, char **pl_start,
+                  char **pl_end, char **track)
+{
+    *pl_start = strchr(bookmark,'/');
+    if (!(*pl_start))
+        return false;
+    *pl_end = strrchr(bookmark,';');
+    *track = *pl_end + 1;
+    return true;
+}
+
 /* ----------------------------------------------------------------------- */
 /* This function adds a bookmark to a file.                                */
 /* Returns true on successful bookmark add.                                */
@@ -281,11 +294,13 @@ static bool add_bookmark(const char* bookmark_file_name, const char* bookmark,
     int    temp_bookmark_file = 0;
     int    bookmark_file = 0;
     int    bookmark_count = 0;
-    char*  playlist = NULL;
-    char*  cp;
-    char*  tmp;
-    int    len = 0;
-    bool   unique = false;
+    char   *pl_start = NULL, *bm_pl_start;
+    char   *pl_end = NULL, *bm_pl_end;
+    int    pl_len = 0, bm_pl_len;
+    char   *track = NULL, *bm_track;
+    bool   comp_playlist = false;
+    bool   comp_track = false;
+    bool   equal;
 
     /* Opening up a temp bookmark file */
     snprintf(global_temp_buffer, sizeof(global_temp_buffer),
@@ -295,12 +310,16 @@ static bool add_bookmark(const char* bookmark_file_name, const char* bookmark,
     if (temp_bookmark_file < 0)
         return false; /* can't open the temp file */
 
-    if (most_recent && (global_settings.usemrb == BOOKMARK_UNIQUE_ONLY))
+    if (most_recent && ((global_settings.usemrb == BOOKMARK_ONE_PER_PLAYLIST)
+                      || (global_settings.usemrb == BOOKMARK_ONE_PER_TRACK)))
     {
-        playlist = strchr(bookmark,'/');
-        cp = strrchr(bookmark,';');
-        len = cp - playlist;
-        unique = true;
+        if (get_playlist_and_track(bookmark, &pl_start, &pl_end, &track))
+        {
+            comp_playlist = true;
+            pl_len = pl_end - pl_start;
+            if (global_settings.usemrb == BOOKMARK_ONE_PER_TRACK)
+                comp_track = true;
+        }
     }
 
     /* Writing the new bookmark to the begining of the temp file */
@@ -319,11 +338,23 @@ static bool add_bookmark(const char* bookmark_file_name, const char* bookmark,
             /* This keeps it from getting too large */
             if (most_recent && (bookmark_count >= MAX_BOOKMARKS))
                 break;
-                        
-            cp  = strchr(global_read_buffer,'/');
-            tmp = strrchr(global_read_buffer,';');
-            if (parse_bookmark(global_read_buffer, false) &&
-               (!unique || len != tmp -cp || strncmp(playlist,cp,len)))
+
+            if (!parse_bookmark(global_read_buffer, false))
+                break;
+
+            equal = false;
+            if (comp_playlist)
+            {
+                if (get_playlist_and_track(global_read_buffer, &bm_pl_start,
+                        &bm_pl_end, &bm_track))
+                {
+                    bm_pl_len = bm_pl_end - bm_pl_start;
+                    equal = (pl_len == bm_pl_len) && !strncmp(pl_start, bm_pl_start, pl_len);
+                    if (equal && comp_track)
+                        equal = !strcmp(track, bm_track);
+                }
+            }
+            if (!equal)
             {
                 bookmark_count++;
                 write(temp_bookmark_file, global_read_buffer,
diff --git a/apps/lang/english.lang b/apps/lang/english.lang
index f4f1b12032..02482d08af 100644
--- a/apps/lang/english.lang
+++ b/apps/lang/english.lang
@@ -4737,16 +4737,16 @@
 </phrase>
 <phrase>
   id: LANG_BOOKMARK_SETTINGS_UNIQUE_ONLY
-  desc: Save only on bookmark for each playlist in recent bookmarks
+  desc: deprecated
   user: core
   <source>
-    *: "Unique only"
+    *: ""
   </source>
   <dest>
-    *: "Unique only"
+    *: ""
   </dest>
   <voice>
-    *: "Unique only"
+    *: ""
   </voice>
 </phrase>
 <phrase>
@@ -13689,3 +13689,31 @@
     *: "gibibyte"
   </voice>
 </phrase>
+<phrase>
+  id: LANG_BOOKMARK_SETTINGS_ONE_PER_PLAYLIST
+  desc: Save only one bookmark for a playlist in recent bookmarks
+  user: core
+  <source>
+    *: "One per playlist"
+  </source>
+  <dest>
+    *: "One per playlist"
+  </dest>
+  <voice>
+    *: "One per playlist"
+  </voice>
+</phrase>
+<phrase>
+  id: LANG_BOOKMARK_SETTINGS_ONE_PER_TRACK
+  desc: Save only one bookmark for a combination (playlist,track) in recent bookmarks
+  user: core
+  <source>
+    *: "One per track"
+  </source>
+  <dest>
+    *: "One per track"
+  </dest>
+  <voice>
+    *: "One per track"
+  </voice>
+</phrase>
diff --git a/apps/settings.h b/apps/settings.h
index cbe12d70b7..db16e717e6 100644
--- a/apps/settings.h
+++ b/apps/settings.h
@@ -45,14 +45,26 @@ struct opt_items {
 #define MAX_FILENAME 32
 #define MAX_PATHNAME 80
 
+/* The values are assigned to the enums so that they correspond to */
+/* setting values in settings_list.c                               */
 
+/* Shared by all bookmark parameters */
 enum {
     BOOKMARK_NO = 0,
-    BOOKMARK_YES,
-    BOOKMARK_ASK,
-    BOOKMARK_UNIQUE_ONLY = 2,
-    BOOKMARK_RECENT_ONLY_YES,
-    BOOKMARK_RECENT_ONLY_ASK,
+    BOOKMARK_YES = 1,
+};
+
+/* Auto create bookmark */
+enum {
+    BOOKMARK_ASK = 2,
+    BOOKMARK_RECENT_ONLY_YES = 3,
+    BOOKMARK_RECENT_ONLY_ASK = 4,
+};
+
+/* Most recent bookmark */
+enum {
+    BOOKMARK_ONE_PER_PLAYLIST = 2,
+    BOOKMARK_ONE_PER_TRACK = 3,
 };
 
 enum
@@ -557,7 +569,8 @@ struct user_settings
     int autoloadbookmark;   /* auto load option: 0=off, 1=ask, 2=on */
     int autocreatebookmark; /* auto create option: 0=off, 1=ask, 2=on */
     bool autoupdatebookmark;/* auto update option */
-    int usemrb;             /* use MRB list: 0=No, 1=Yes, 2=One per playlist */
+    int usemrb;             /* use MRB list: 0=No, 1=Yes, 2=One per playlist,
+                                             3=One per playlist and track */
 
 #ifdef HAVE_DIRCACHE
     bool dircache;          /* enable directory cache */
diff --git a/apps/settings_list.c b/apps/settings_list.c
index 57763d345a..d4ad6f64dc 100644
--- a/apps/settings_list.c
+++ b/apps/settings_list.c
@@ -1246,9 +1246,10 @@ const struct settings_list settings[] = {
                    ID2P(LANG_ASK)),
     CHOICE_SETTING(0, usemrb, LANG_BOOKMARK_SETTINGS_MAINTAIN_RECENT_BOOKMARKS,
                    BOOKMARK_NO, "use most-recent-bookmarks",
-                   "off,on,unique only", NULL, 3, ID2P(LANG_SET_BOOL_NO),
+                   "off,on,unique only,one per track", NULL, 4, ID2P(LANG_SET_BOOL_NO),
                    ID2P(LANG_SET_BOOL_YES),
-                   ID2P(LANG_BOOKMARK_SETTINGS_UNIQUE_ONLY)),
+                   ID2P(LANG_BOOKMARK_SETTINGS_ONE_PER_PLAYLIST),
+                   ID2P(LANG_BOOKMARK_SETTINGS_ONE_PER_TRACK)),
 #ifdef HAVE_LCD_BITMAP
     /* peak meter */
     STRINGCHOICE_SETTING(0, peak_meter_clip_hold, LANG_PM_CLIP_HOLD, 16,
diff --git a/manual/appendix/config_file_options.tex b/manual/appendix/config_file_options.tex
index f3db4e5b96..ddd41e105d 100644
--- a/manual/appendix/config_file_options.tex
+++ b/manual/appendix/config_file_options.tex
@@ -126,7 +126,7 @@
     autoload bookmarks
                     & off, on           & N/A\\
     use most-recent-bookmarks
-                    & off, on           & N/A\\
+                    & off, on, unique only, one per track & N/A\\
     pause on headphone unplug & off, pause, pause and resume & N/A\\
     rewind duration on pause & 0 to 15  & s\\
     disable autoresume if phones not present & off, on & N/A\\
diff --git a/manual/configure_rockbox/bookmarking.tex b/manual/configure_rockbox/bookmarking.tex
index 68dad4b33c..8147715ace 100644
--- a/manual/configure_rockbox/bookmarking.tex
+++ b/manual/configure_rockbox/bookmarking.tex
@@ -81,10 +81,15 @@
       \item[Yes]
             Keep a list of recently used bookmarks. Each new bookmark is added
             to the list of recent bookmarks.
-      \item[Unique Only]
+      \item[One per playlist]
             Add each new bookmark to the list of recently used bookmarks, but
             only keep one bookmark from the current directory or playlist; any
-            previous entries are removed.
+            previous entries for the playlist are removed.
+      \item[One per track]
+            Add each new bookmark to the list of recently used bookmarks, but
+            only keep one bookmark from the current directory or playlist and
+            the current track; any previous entries for the track within the
+            playlist are removed.
     \end{description}
 \end{description}