Fix buttonbar handling/theme changed handling in lists.

The lists need to copy to a local parent if a list passes NULL as parent in the init. This was before the commit of custom ui vp, but I removed it since I (wrongly) thought using the ui vp as parent would be fine. Let the viewportmanager fire a event in case when a theme-related setting changed and simply the handling in the lists code.
However the buttonbar handling didn't work before anyway, since list code didn't know if the buttonbar was active (it asked a variable which was always false....).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22651 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 5 insertions, 0 deletions

diff --git a/apps/gui/viewport.h b/apps/gui/viewport.h
index 93b5c70fc3..d431766ab5 100644
--- a/apps/gui/viewport.h
+++ b/apps/gui/viewport.h
@@ -58,6 +58,7 @@ void viewport_set_defaults(struct viewport *vp, enum screen_type screen);
 
 #define THEME_STATUSBAR     (BIT_N(0))
 #define THEME_UI_VIEWPORT   (BIT_N(1))
+#define THEME_BUTTONBAR     (BIT_N(2))
 #define THEME_ALL           (~(0u))
 
 #define VP_SB_HIDE_ALL 0
@@ -116,6 +117,10 @@ struct viewport* viewport_get_current_vp(void);
  */
 void viewport_set_current_vp(struct viewport* vp);
 
+/*
+ * returns true if the ui viewport is active on the screen
+ */
+bool viewport_ui_vp_get_state(enum screen_type screen);
 #ifdef HAVE_TOUCHSCREEN
 bool viewport_point_within_vp(const struct viewport *vp, int x, int y);
 #endif