style: Use layout name as css class

eek/eek-keyboard.c

@@ -21,6 +21,7 @@
 #include "config.h"
 
 #define _XOPEN_SOURCE 500
+#include <bsd/string.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <string.h>
@@ -91,12 +92,13 @@ void level_keyboard_free(LevelKeyboard *self) {
 }
 
 LevelKeyboard*
-level_keyboard_new (struct squeek_layout *layout)
+level_keyboard_new (char *style_name, struct squeek_layout *layout)
 {
     LevelKeyboard *keyboard = g_new0(LevelKeyboard, 1);
     if (!keyboard) {
         g_error("Failed to create a keyboard");
     }
     keyboard->layout = layout;
+    strlcpy(keyboard->style_name, style_name, 19);
     return keyboard;
 }

eek/eek-keyboard.h

@@ -38,17 +38,17 @@ struct keymap {
     size_t fd_len; // length of the data inside keymap_fd
 };
 
-/// Keyboard state holder
+/// Keyboard info holder
 struct _LevelKeyboard {
+    char style_name[20]; // The name of the css class on layout
     struct squeek_layout *layout; // owned
-// FIXME: This no longer needs to exist, keymap was folded into layout.
 };
 typedef struct _LevelKeyboard LevelKeyboard;
 
 gchar *eek_keyboard_get_keymap(LevelKeyboard *keyboard);
 
 LevelKeyboard*
-level_keyboard_new (struct squeek_layout *layout);
+level_keyboard_new (char *style_name, struct squeek_layout *layout);
 void level_keyboard_free(LevelKeyboard *self);
 
 G_END_DECLS

eek/eek-renderer.c

@@ -335,6 +335,7 @@ eek_renderer_new (LevelKeyboard  *keyboard,
     if (squeek_layout_get_kind(keyboard->layout) == ARRANGEMENT_KIND_WIDE) {
         gtk_style_context_add_class(renderer->view_context, "wide");
     }
+    gtk_style_context_add_class(renderer->view_context, (char*)&keyboard->style_name);
     gtk_style_context_add_provider (renderer->view_context,
         GTK_STYLE_PROVIDER(renderer->css_provider),
         GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);