[Configuration] Add start of more 'theme' based configuration.

Nested CSS blocks in configuration {} are parsed into
rofi_configuration.

include/theme.h

@@ -87,6 +87,14 @@ typedef struct ThemeWidget
  */
 extern ThemeWidget *rofi_theme;
 
+/**
+ * Used to store config options.
+ */
+extern ThemeWidget *rofi_theme;
+
+
+extern ThemeWidget *rofi_configuration;
+
 /**
  * @param base Handle to the current level in the theme.
  * @param name Name of the new element.
@@ -333,6 +341,7 @@ void distance_get_linestyle ( RofiDistance d, cairo_t *draw );
  * @returns the ThemeWidget if found, otherwise NULL.
  */
 ThemeWidget *rofi_theme_find_widget ( const char *name, const char *state, gboolean exact );
+ThemeWidget *rofi_config_find_widget ( const char *name, const char *state, gboolean exact );
 
 /**
  * @param widget The widget to find the property on.

lexer/theme-lexer.l

@@ -474,6 +474,14 @@ if ( queue == NULL ){
     return T_LINK;
 }
 
+<SECTION>"\{"       {
+  // Double to fit in scheme.
+  g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) );
+  g_queue_push_head ( queue, GINT_TO_POINTER (SECTION) );
+  BEGIN(SECTION);
+  return T_BOPEN;
+}
+
 <PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>{EM}       { return T_UNIT_EM; }
 <PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>{CH}       { return T_UNIT_CH; }
 <PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT,MEDIA_CONTENT>{PX}       { return T_UNIT_PX; }

lexer/theme-parser.y

@@ -318,7 +318,12 @@ t_main
 ;
 
 t_configuration_list:
- %empty {}
+ %empty {
+    if ( rofi_configuration == NULL ) {
+      rofi_configuration       = g_slice_new0 ( ThemeWidget );
+      rofi_configuration->name = g_strdup ( "Configuration" );
+    }
+}
 | t_configuration_list T_CONFIGURATION T_BOPEN t_config_property_list_optional T_BCLOSE {};
 
 
@@ -429,6 +434,18 @@ t_config_property
     // We don't keep any reference to this after this point, so the property can be free'ed.
     rofi_theme_property_free ( $1 );
 }
+|  t_property_name T_BOPEN t_property_list_optional T_BCLOSE
+{
+  ThemeWidget *widget = rofi_configuration;
+  widget = rofi_theme_find_or_create_name ( widget, $1 );
+  widget->set = TRUE;
+  rofi_theme_widget_add_properties ( widget, $3);
+  if ( $3 ) {
+    g_hash_table_destroy ( $3 );
+  }
+  g_free ( $1 );
+}
+;
 
 /**
  * properties

source/dialogs/combi.c

@@ -223,7 +223,7 @@ static char * combi_mgrv ( const Mode *sw, unsigned int selected_line, int *stat
             }
 
             if ( attr_list != NULL ) {
-                ThemeWidget *wid = rofi_theme_find_widget ( sw->name, NULL, TRUE );
+                ThemeWidget *wid = rofi_config_find_widget ( sw->name, NULL, TRUE );
                 Property    *p   = rofi_theme_find_property ( wid, P_COLOR, pd->switchers[i].mode->name, TRUE );
                 if ( p != NULL ) {
                     PangoAttribute *pa = pango_attr_foreground_new (

source/rofi.c

@@ -472,6 +472,11 @@ static void cleanup ()
     TIMINGS_STOP ();
     rofi_collect_modi_destroy ( );
     rofi_icon_fetcher_destroy ( );
+
+    if ( rofi_configuration ) {
+        rofi_theme_free ( rofi_configuration );
+        rofi_configuration = NULL;
+    }
 }
 
 /**

source/theme.c

@@ -798,6 +798,14 @@ Property *rofi_theme_find_property ( ThemeWidget *widget, PropertyType type, con
     }
     return NULL;
 }
+ThemeWidget *rofi_config_find_widget ( const char *name, const char *state, gboolean exact )
+{
+    // First find exact match based on name.
+    ThemeWidget *widget = rofi_theme_find_single ( rofi_configuration, name );
+    widget = rofi_theme_find ( widget, state, exact );
+
+    return widget;
+}
 ThemeWidget *rofi_theme_find_widget ( const char *name, const char *state, gboolean exact )
 {
     // First find exact match based on name.

source/xrmoptions.c

@@ -44,6 +44,8 @@
 #include "rofi-types.h"
 
 
+ThemeWidget *rofi_configuration = NULL;
+
 
 /** Different sources of configuration. */
 const char * const ConfigSourceStr[] = {