feature/android c8aca918f79 1/2: Synchronize tool bar position code with X

[Po Lu]

branch: feature/android
commit c8aca918f798e8131f5075b41d0c957e77721e31
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Synchronize tool bar position code with X
    
    * src/androidfns.c (android_set_tool_bar_position): New
    function.
    (android_frame_parm_handlers): Add new frame param handler.
---
 src/androidfns.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/androidfns.c b/src/androidfns.c
index cc48de1a359..c76e2c0075d 100644
--- a/src/androidfns.c
+++ b/src/androidfns.c
@@ -249,6 +249,22 @@ android_set_tool_bar_lines (struct frame *f, Lisp_Object 
value,
   android_change_tool_bar_height (f, nlines * FRAME_LINE_HEIGHT (f));
 }
 
+static void
+android_set_tool_bar_position (struct frame *f,
+                              Lisp_Object new_value,
+                              Lisp_Object old_value)
+{
+  Lisp_Object choice = list4 (Qleft, Qright, Qtop, Qbottom);
+
+  if (!NILP (Fmemq (new_value, choice)))
+    {
+      if (!EQ (new_value, Qtop))
+       error ("The only supported tool bar position is top");
+    }
+  else
+    wrong_choice (choice, new_value);
+}
+
 void
 android_change_tool_bar_height (struct frame *f, int height)
 {
@@ -2931,7 +2947,7 @@ frame_parm_handler android_frame_parm_handlers[] =
   gui_set_visibility,
   android_set_tab_bar_lines,
   android_set_tool_bar_lines,
-  NULL,
+  android_set_tool_bar_position,
   NULL,
   gui_set_screen_gamma,
   gui_set_line_spacing,