[nautilus/revert-0009d0e7] Revert "toolbar: Use GTK_STYLE_CLASS'es on the pathbar container box"

[António Fernandes <antoniof src gnome org>]

commit e38d68f56e6f112849b9292b5e1b220579cb2d06
Author: António Fernandes <antoniojpfernandes gmail com>
Date:   Wed Oct 10 00:54:08 2018 +0000

    Revert "toolbar: Use GTK_STYLE_CLASS'es on the pathbar container box"
    
    This reverts commit 0009d0e771f1a7cb9adf12e78d66aefcccc766b6

 src/nautilus-toolbar.c        | 8 +++-----
 src/resources/css/Adwaita.css | 6 ++++++
 2 files changed, 9 insertions(+), 5 deletions(-)
---
diff --git a/src/nautilus-toolbar.c b/src/nautilus-toolbar.c
index 12fc27a59..fb0d2d4c0 100644
--- a/src/nautilus-toolbar.c
+++ b/src/nautilus-toolbar.c
@@ -858,17 +858,15 @@ on_notify_width_maximized (NautilusContainerMaxWidth *container,
     context = gtk_widget_get_style_context (self->path_bar_container);
     width_maximized = nautilus_container_max_width_get_width_maximized (container);
 
-    g_return_if_fail (gtk_style_context_has_class (context, GTK_STYLE_CLASS_FRAME) != width_maximized);
+    g_return_if_fail (gtk_style_context_has_class (context, "width-maximized") != width_maximized);
 
     if (width_maximized)
     {
-        gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME);
-        gtk_style_context_add_class (context, GTK_STYLE_CLASS_BACKGROUND);
+        gtk_style_context_add_class (context, "width-maximized");
     }
     else
     {
-        gtk_style_context_remove_class (context, GTK_STYLE_CLASS_FRAME);
-        gtk_style_context_remove_class (context, GTK_STYLE_CLASS_BACKGROUND);
+        gtk_style_context_remove_class (context, "width-maximized");
     }
 }
 
diff --git a/src/resources/css/Adwaita.css b/src/resources/css/Adwaita.css
index ca7a3a9d4..b1e510903 100644
--- a/src/resources/css/Adwaita.css
+++ b/src/resources/css/Adwaita.css
@@ -65,8 +65,14 @@
 .path-bar-box {
   transition: border 200ms;
   transition: background-color 200ms;
+}
+.path-bar-box.width-maximized {
+  border: 1px @borders solid;
   border-radius: 3px;
 }
+.path-bar-box.width-maximized:not(:backdrop) {
+  background-color: @theme_bg_color;
+}
 
 /* Make the tags fit into the box */
 entry.search > * {