Add new actions to %Tp (Touchscreen areas)

Add the following actions to %Tp:
createbookmark   create a new bookmark from the wps
listbookmarks    list bookmarks from the wps
trackinfo        show track info from the wps

My main motivation was to allow bookmarking and jumping around audio books
from the wps on touch enabled targets.  You can do it now through the context
menu but it requires 4 screen presses instead of 1.

Change-Id: I1fa1bf0064dfd22b897eca7c56acc1ce8956f14c
Reviewed-on: http://gerrit.rockbox.org/171
Reviewed-by: Jonathan Gordon <rockbox@jdgordon.info>

apps/action.h

@@ -129,6 +129,8 @@ enum {
     ACTION_WPS_QUICKSCREEN,/* optional */
     ACTION_WPS_MENU, /*this should be the same as ACTION_STD_MENU */
     ACTION_WPS_VIEW_PLAYLIST,
+    ACTION_WPS_LIST_BOOKMARKS,/* optional */
+    ACTION_WPS_CREATE_BOOKMARK,/* optional */
     ACTION_WPS_REC,
 #if 0
     ACTION_WPSAB_SINGLE, /* This needs to be #defined in 

apps/gui/skin_engine/skin_parser.c

@@ -1287,7 +1287,10 @@ static const struct touchaction touchactions[] = {
     {"browse", ACTION_WPS_BROWSE },
     {"play", ACTION_WPS_PLAY },         {"stop", ACTION_WPS_STOP },
     {"shuffle", ACTION_TOUCH_SHUFFLE }, {"repmode", ACTION_TOUCH_REPMODE },
-    {"pitch", ACTION_WPS_PITCHSCREEN},  {"playlist", ACTION_WPS_VIEW_PLAYLIST }, 
+    {"pitch", ACTION_WPS_PITCHSCREEN},  {"trackinfo", ACTION_WPS_ID3SCREEN },
+    {"playlist", ACTION_WPS_VIEW_PLAYLIST },
+    {"listbookmarks", ACTION_WPS_LIST_BOOKMARKS },
+    {"createbookmark", ACTION_WPS_CREATE_BOOKMARK },
 
 #if CONFIG_TUNER    
     /* FM screen actions */

apps/gui/wps.c

@@ -1042,6 +1042,21 @@ long gui_wps_show(void)
                 exit = true;
                 break;
 
+            case ACTION_WPS_LIST_BOOKMARKS:
+                gwps_leave_wps();
+                if (bookmark_load_menu() == BOOKMARK_USB_CONNECTED)
+                {
+                    return GO_TO_ROOT;
+                }
+                restore = true;
+                break;
+
+            case ACTION_WPS_CREATE_BOOKMARK:
+                gwps_leave_wps();
+                bookmark_create_menu();
+                restore = true;
+                break;
+
             case ACTION_WPS_ID3SCREEN:
             {
                 gwps_leave_wps();

manual/appendix/wps_tags.tex

@@ -657,19 +657,22 @@ display cycling round the defined sublines. See
     \item[wps\_next] -- Next track.
     \item[ffwd] -- Seek forwards in the track.
     \item[rwd] -- Seek backwards in the track.
-    \item[menu] -- Go to the main menu.
+    \item[progressbar] -- Seek to the appropriate position in the track based on the touch.
-    \item[browse] -- Go back to the file browser or database.
     \item[shuffle] -- Toggle shuffle mode.
     \item[repmode] -- Cycle through the repeat modes.
-    \item[quickscreen] -- Go to the quickscreen.
-    \item[contextmenu] -- Open the context menu.
-    \item[playlist] -- Go to the playlist viewer.
-    \item[progressbar] -- Seek to the appropriate position in the track based on the touch.
     \item[volume] -- Set the volume to the appropriate level based on the touch.
-    \item[pitch] -- Open the pitchscreen.
     \item[voldown] -- Decrease the volume by one step.
     \item[volup] -- Increase the volume by one step.
     \item[mute] -- Un/Mute playback.
+    \item[createbookmark] -- Create a bookmark in the currently-playing track.
+    \item[menu] -- Go to the main menu.
+    \item[browse] -- Go back to the file browser or database.
+    \item[quickscreen] -- Go to the quickscreen.
+    \item[contextmenu] -- Open the context menu.
+    \item[playlist] -- Go to the playlist viewer.
+    \item[listbookmarks] -- List the bookmarks for the currently-playing directory or playlist.
+    \item[trackinfo] -- Open the track info viewer.
+    \item[pitch] -- Open the pitchscreen.
     \item[setting\_inc] -- Increment the subsequently specified setting (e.g
       \config{\%T(0,0, setting\_inc, volume)} increases the volume by one step).
     \item[setting\_dec] -- Decrement the subsequently specified setting (e.g