[gtk+/gtk-3-22] Adwaita: Avoid accindental border on last treeview header

[Lapo Calamandrei <lapo src gnome org>]

commit 622a0f8611d0a93acf4cef6c5194032e4070d08f
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Wed May 17 18:09:59 2017 +0200

    Adwaita: Avoid accindental border on last treeview header
    
    The :last-child selector supposed to reset the border was
    overridden by the :hover selector. This is fixed by moving the
    :last-child selector after the overriding one.
    Thanks to Sebastian Keller for spotting.
    Fixes https://bugzilla.gnome.org/show_bug.cgi?id=779078.

 gtk/theme/Adwaita/_common.scss           |    4 ++--
 gtk/theme/Adwaita/gtk-contained-dark.css |    4 ++--
 gtk/theme/Adwaita/gtk-contained.css      |    4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index ad93e78..002e99e 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -1878,8 +1878,6 @@ treeview.view {
         transition: none; //I shouldn't need this
       }
     }
-
-    button:last-child { &:backdrop, & { border-right-style: none; }}
   }
 
   button.dnd,
@@ -1925,6 +1923,8 @@ treeview.view {
       background-image: none;
     }
   }
+
+  &:last-child { &:backdrop, & { border-right-style: none; }}
 }
 
 
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index 73764d5..27476d8 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -748,8 +748,6 @@ treeview.view header button:hover { color: #bcbdbc; box-shadow: none; transition
 
 treeview.view header button:active { color: #eeeeec; transition: none; }
 
-treeview.view header button:last-child:backdrop, treeview.view header button:last-child { 
border-right-style: none; }
-
 treeview.view button.dnd:active, treeview.view button.dnd:selected, treeview.view button.dnd:hover, 
treeview.view button.dnd, treeview.view header.button.dnd:active, treeview.view header.button.dnd:selected, 
treeview.view header.button.dnd:hover, treeview.view header.button.dnd { padding: 0 6px; color: #232729; 
background-image: none; background-color: #215d9c; border-style: none; border-radius: 0; box-shadow: inset 0 
0 0 1px #232729; text-shadow: none; transition: none; }
 
 treeview.view acceleditor > label { background-color: #215d9c; }
@@ -762,6 +760,8 @@ treeview.view header button:backdrop { color: #626768; border-color: #33393b; bo
 
 treeview.view header button:backdrop:disabled { border-color: #33393b; background-image: none; }
 
+treeview.view header button:last-child:backdrop, treeview.view header button:last-child { 
border-right-style: none; }
+
 /********* Menus * */
 menubar, .menubar { -GtkWidget-window-dragging: true; padding: 0px; box-shadow: inset 0 -1px rgba(0, 0, 0, 
0.1); }
 
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index 4632144..5b2b2ee 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -756,8 +756,6 @@ treeview.view header button:hover { color: #636769; box-shadow: none; transition
 
 treeview.view header button:active { color: #2e3436; transition: none; }
 
-treeview.view header button:last-child:backdrop, treeview.view header button:last-child { 
border-right-style: none; }
-
 treeview.view button.dnd:active, treeview.view button.dnd:selected, treeview.view button.dnd:hover, 
treeview.view button.dnd, treeview.view header.button.dnd:active, treeview.view header.button.dnd:selected, 
treeview.view header.button.dnd:hover, treeview.view header.button.dnd { padding: 0 6px; color: #ffffff; 
background-image: none; background-color: #4a90d9; border-style: none; border-radius: 0; box-shadow: inset 0 
0 0 1px #ffffff; text-shadow: none; transition: none; }
 
 treeview.view acceleditor > label { background-color: #4a90d9; }
@@ -770,6 +768,8 @@ treeview.view header button:backdrop { color: #babbbb; border-color: #e8e8e7; bo
 
 treeview.view header button:backdrop:disabled { border-color: #e8e8e7; background-image: none; }
 
+treeview.view header button:last-child:backdrop, treeview.view header button:last-child { 
border-right-style: none; }
+
 /********* Menus * */
 menubar, .menubar { -GtkWidget-window-dragging: true; padding: 0px; box-shadow: inset 0 -1px rgba(0, 0, 0, 
0.1); }