Use a gresource to store the css

This makes build / test faster since one can skip install. It's
also more obvious which file is being used.

src/meson.build

@@ -4,6 +4,13 @@ dbus_src = gnome.gdbus_codegen(
     join_paths(dbusdir, 'sm.puri.OSK0.xml')
 )
 
+squeekboard_resources = gnome.compile_resources(
+   'squeekboard-resources',
+   'squeekboard.gresources.xml',
+
+   c_name: 'squeekboard',
+)
+
 sources = [
   'imservice.c',
   'server-context-service.c',
@@ -40,7 +47,8 @@ sources = [
   '../eekboard/eekboard-context-service.c',
   '../eekboard/eekboard-context.c',
   '../eekboard/eekboard-service.c',
-#  '../eekboard/eekboard-xklutil.c',
+  #  '../eekboard/eekboard-xklutil.c',
+  squeekboard_resources,
   wl_proto_sources,
 ]
 

src/server-context-service.c

@@ -338,9 +338,9 @@ update_widget (ServerContextService *context)
         context->widget = NULL;
     }
 
-    theme_path = g_build_filename (THEMESDIR, "default.css", NULL);
-
-    theme = eek_theme_new (theme_path, NULL, NULL);
+    theme = eek_theme_new ("resource:///sm/puri/squeekboard/style.css",
+                           NULL,
+                           NULL);
     g_free (theme_path);
 
     keyboard = eekboard_context_service_get_keyboard (EEKBOARD_CONTEXT_SERVICE(context));

src/squeekboard.gresources.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/sm/puri/squeekboard">
+   <file compressed="true">style.css</file>
+  </gresource>
+</gresources>

src/style.css

@@ -0,0 +1,18 @@
+.keyboard {
+    background-color: rgba(0, 0, 0, 255);
+    color: #ffffff;
+    font-family: cantarell, sans-serif;
+}
+
+.key {
+    color: #deddda;
+    background: #464448;
+    border-width: 0.5px;
+    border-color: #5e5c64;
+    border-radius: 2px;
+}
+
+.key:active {
+    background: #1c71d8;
+    border-color: #3584e4;
+}