[gtk+] Adwaita: axes borders of notebooks inside frame

[Lapo Calamandrei <lapo src gnome org>]

commit 01e6811776cf6ad8738f182972edbb84626d7fae
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Tue Oct 21 15:36:22 2014 +0200

    Adwaita: axes borders of notebooks inside frame
    
    This is what the old adwaita did, not having a better solution for
    removing double borders, better to have this back even if it can
    be problematic in certain cases.

 gtk/resources/theme/Adwaita/_common.scss           |    5 ++++-
 gtk/resources/theme/Adwaita/gtk-contained-dark.css |    2 ++
 gtk/resources/theme/Adwaita/gtk-contained.css      |    2 ++
 3 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/gtk/resources/theme/Adwaita/_common.scss b/gtk/resources/theme/Adwaita/_common.scss
index e7905b5..eb9c5d6 100644
--- a/gtk/resources/theme/Adwaita/_common.scss
+++ b/gtk/resources/theme/Adwaita/_common.scss
@@ -1564,9 +1564,9 @@ column-header.button.dnd { // for treeview-like derive widgets
     &.left { border-left-width: 0; }
     &:backdrop { border-color: $backdrop_borders_color; }
   }
+
   &.header {
     // FIXME: double borders in some case, can't fix it w/o a class tho
-    // FIXME: doesn't work on dark var
     background-color: mix($bg_color, $borders_color, 70%);
 
     // this is the shading of the header behind the tabs
@@ -1606,6 +1606,9 @@ column-header.button.dnd { // for treeview-like derive widgets
       box-shadow: none;
     }
   }
+
+  .frame > &.frame { border: none; } // axes borders when the notebook is inside a frame
+
   tab {
     border-width: 0;
     border-style: solid;
diff --git a/gtk/resources/theme/Adwaita/gtk-contained-dark.css 
b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
index 47dd882..7e1d72c 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
@@ -2248,6 +2248,8 @@ GtkCalendar.header column-header .button.titlebutton, column-header .button:hove
     .notebook.header:backdrop {
       background-color: #2f3434;
       box-shadow: none; }
+  .frame > .notebook.frame {
+    border: none; }
   .notebook tab {
     border-width: 0;
     border-style: solid;
diff --git a/gtk/resources/theme/Adwaita/gtk-contained.css b/gtk/resources/theme/Adwaita/gtk-contained.css
index 0d4c33e..9c5c811 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained.css
@@ -2245,6 +2245,8 @@ GtkCalendar.header column-header .button.titlebutton, column-header .button:hove
     .notebook.header:backdrop {
       background-color: #d4d4d4;
       box-shadow: none; }
+  .frame > .notebook.frame {
+    border: none; }
   .notebook tab {
     border-width: 0;
     border-style: solid;