[gtk+] Adwaita: fix popover buttons.

[Lapo Calamandrei <lapo src gnome org>]

commit 6e89856cc0c237d1be3e66adcb3a866b79b77c6e
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Wed Jul 2 17:27:12 2014 +0200

    Adwaita: fix popover buttons.
    
    Unfortunatelly labels doesn't change color wrt states.
    
    See https://bugzilla.gnome.org/show_bug.cgi?id=732494

 gtk/resources/theme/Adwaita/_common.scss           |   42 ++++++--------------
 gtk/resources/theme/Adwaita/gtk-contained-dark.css |   37 +++++++-----------
 gtk/resources/theme/Adwaita/gtk-contained.css      |   37 +++++++-----------
 3 files changed, 40 insertions(+), 76 deletions(-)
---
diff --git a/gtk/resources/theme/Adwaita/_common.scss b/gtk/resources/theme/Adwaita/_common.scss
index 4c46853..296ae99 100644
--- a/gtk/resources/theme/Adwaita/_common.scss
+++ b/gtk/resources/theme/Adwaita/_common.scss
@@ -382,39 +382,18 @@ GtkLabel {
   background-color: transparent;
   background-image: none;
   box-shadow: inset 0 1px transparentize(white,1);
+  text-shadow: none;
+  icon-shadow: none;
 }
 
 /* menu buttons */
-.menuitem.button {
-  color: $fg_color;
-  background-color: transparent;
-  background-image: none;
-  border-color: transparent;
-  border-image: none;
-  border-style: none;
-  box-shadow: none;
-  &:insensitive,
-  &:active:insensitive {
-    @extend .menuitem.button; // override generic .button:*
-  }
-  &:active {
-    color: $selected_fg_color;
-    text-shadow: none;
-    icon-shadow: none;
-  }
-  &:backdrop,
-  &:hover:backdrop,
-  &:insensitive:backdrop,
-  &:active:insensitive:backdrop,
-  &:active:backdrop,
-  &:active:hover:backdrop,
-  &:active:selected:backdrop {
-      text-shadow: none;
-      icon-shadow: none;
-      color: $insensitive_fg_color;
-      background-image: linear-gradient(to bottom, $bg_color);
-      border: none;
-      box-shadow: none;
+.menuitem.button.flat {
+  @extend %undecorated_button;
+  outline-offset: -1px;
+  &:hover { background-color: mix($fg_color,$bg_color,10%); }
+  &:selected { @extend %selected_items; }
+  &:backdrop, &:backdrop:hover {
+    @extend %undecorated_button;
   }
 }
 
@@ -1323,6 +1302,9 @@ $asset_suffix: if($variant=='dark', '-dark', '');
     &:inconsistent {
       -gtk-icon-source: -gtk-icontheme('#{$a}-mixed-symbolic');
     }
+    &:backdrop, &:backdrop:hover { 
+      color: transparentize($backdrop_fg_color,0.9);
+    }
   }
 
   //treeview & selection mode icon view
diff --git a/gtk/resources/theme/Adwaita/gtk-contained-dark.css 
b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
index e647124..9985188 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
@@ -537,32 +537,19 @@
     border-radius: 3px;
     border-style: solid; }
 
-.button.flat, .button.flat:backdrop, .button:link, .button:visited, .button:link:hover, .button:link:active, 
.button:visited:hover, .button:visited:active, .button:link:backdrop, .button:visited:backdrop, .notebook tab 
.button, GtkCalendar.button, GtkCalendar.button:hover, GtkCalendar.button:backdrop, 
GtkCalendar.button:backdrop:hover {
+.button.flat, .button.flat:backdrop, .menuitem.button.flat, .menuitem.button.flat:backdrop, 
.menuitem.button.flat:backdrop:hover, .button:link, .button:visited, .button:link:hover, .button:link:active, 
.button:visited:hover, .button:visited:active, .button:link:backdrop, .button:visited:backdrop, .notebook tab 
.button, GtkCalendar.button, GtkCalendar.button:hover, GtkCalendar.button:backdrop, 
GtkCalendar.button:backdrop:hover {
   border-color: transparent;
   background-color: transparent;
   background-image: none;
-  box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
+  box-shadow: inset 0 1px rgba(255, 255, 255, 0);
+  text-shadow: none;
+  icon-shadow: none; }
 
 /* menu buttons */
-.menuitem.button, .menuitem.button:insensitive, .menuitem.button:active:insensitive {
-  color: #eeeeec;
-  background-color: transparent;
-  background-image: none;
-  border-color: transparent;
-  border-image: none;
-  border-style: none;
-  box-shadow: none; }
-  .menuitem.button:active {
-    color: white;
-    text-shadow: none;
-    icon-shadow: none; }
-  .menuitem.button:backdrop, .menuitem.button:backdrop:active:insensitive, .menuitem.button:hover:backdrop, 
.menuitem.button:insensitive:backdrop, .menuitem.button:active:insensitive:backdrop, 
.menuitem.button:active:backdrop, .menuitem.button:active:hover:backdrop, 
.menuitem.button:active:selected:backdrop {
-    text-shadow: none;
-    icon-shadow: none;
-    color: #939695;
-    background-image: linear-gradient(to bottom, #393f3f);
-    border: none;
-    box-shadow: none; }
+.menuitem.button.flat {
+  outline-offset: -1px; }
+  .menuitem.button.flat:hover {
+    background-color: #4b5050; }
 
 GtkColorButton.button {
   padding: 4px; }
@@ -1597,6 +1584,8 @@ GtkSwitch {
       color: transparent; }
   .menuitem.check:inconsistent {
     -gtk-icon-source: -gtk-icontheme("checkbox-mixed-symbolic"); }
+  .menuitem.check:backdrop, .menuitem.check:backdrop:hover {
+    color: rgba(201, 203, 201, 0.1); }
 
 .view.check {
   color: rgba(238, 238, 236, 0.1);
@@ -1749,6 +1738,8 @@ GtkSwitch {
       color: transparent; }
   .menuitem.radio:inconsistent {
     -gtk-icon-source: -gtk-icontheme("radio-mixed-symbolic"); }
+  .menuitem.radio:backdrop, .menuitem.radio:backdrop:hover {
+    color: rgba(201, 203, 201, 0.1); }
 
 .view.radio {
   color: rgba(238, 238, 236, 0.1);
@@ -2251,11 +2242,11 @@ GtkLevelBar.vertical {
     .level-bar.fill-block.empty-fill-block:backdrop {
       border-color: rgba(201, 203, 201, 0.15); }
 
-.view:selected, .view:selected:focus, .view:selected:hover, GtkLabel:selected, GtkLabel:selected:focus, 
GtkLabel:selected:hover, GtkLabel:backdrop:selected, .entry:selected, .entry:selected:focus {
+.view:selected, .view:selected:focus, .view:selected:hover, GtkLabel:selected, GtkLabel:selected:focus, 
GtkLabel:selected:hover, GtkLabel:backdrop:selected, .entry:selected, .entry:selected:focus, 
.menuitem.button.flat:selected {
   background-color: #215d9c;
   color: white;
   outline-color: rgba(255, 255, 255, 0.3); }
-  .view:backdrop:selected, GtkLabel:backdrop:selected, .entry:backdrop:selected {
+  .view:backdrop:selected, GtkLabel:backdrop:selected, .entry:backdrop:selected, 
.menuitem.button.flat:backdrop:selected {
     color: #2c2c2c; }
 
 /**********
diff --git a/gtk/resources/theme/Adwaita/gtk-contained.css b/gtk/resources/theme/Adwaita/gtk-contained.css
index e1b1dce..da9dd26 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained.css
@@ -537,32 +537,19 @@
     border-radius: 3px;
     border-style: solid; }
 
-.button.flat, .button.flat:backdrop, .button:link, .button:visited, .button:link:hover, .button:link:active, 
.button:visited:hover, .button:visited:active, .button:link:backdrop, .button:visited:backdrop, .notebook tab 
.button, GtkCalendar.button, GtkCalendar.button:hover, GtkCalendar.button:backdrop, 
GtkCalendar.button:backdrop:hover {
+.button.flat, .button.flat:backdrop, .menuitem.button.flat, .menuitem.button.flat:backdrop, 
.menuitem.button.flat:backdrop:hover, .button:link, .button:visited, .button:link:hover, .button:link:active, 
.button:visited:hover, .button:visited:active, .button:link:backdrop, .button:visited:backdrop, .notebook tab 
.button, GtkCalendar.button, GtkCalendar.button:hover, GtkCalendar.button:backdrop, 
GtkCalendar.button:backdrop:hover {
   border-color: transparent;
   background-color: transparent;
   background-image: none;
-  box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
+  box-shadow: inset 0 1px rgba(255, 255, 255, 0);
+  text-shadow: none;
+  icon-shadow: none; }
 
 /* menu buttons */
-.menuitem.button, .menuitem.button:insensitive, .menuitem.button:active:insensitive {
-  color: #2e3436;
-  background-color: transparent;
-  background-image: none;
-  border-color: transparent;
-  border-image: none;
-  border-style: none;
-  box-shadow: none; }
-  .menuitem.button:active {
-    color: white;
-    text-shadow: none;
-    icon-shadow: none; }
-  .menuitem.button:backdrop, .menuitem.button:backdrop:active:insensitive, .menuitem.button:hover:backdrop, 
.menuitem.button:insensitive:backdrop, .menuitem.button:active:insensitive:backdrop, 
.menuitem.button:active:backdrop, .menuitem.button:active:hover:backdrop, 
.menuitem.button:active:selected:backdrop {
-    text-shadow: none;
-    icon-shadow: none;
-    color: #8d9091;
-    background-image: linear-gradient(to bottom, #ededed);
-    border: none;
-    box-shadow: none; }
+.menuitem.button.flat {
+  outline-offset: -1px; }
+  .menuitem.button.flat:hover {
+    background-color: #d9dada; }
 
 GtkColorButton.button {
   padding: 4px; }
@@ -1596,6 +1583,8 @@ GtkSwitch {
       color: transparent; }
   .menuitem.check:inconsistent {
     -gtk-icon-source: -gtk-icontheme("checkbox-mixed-symbolic"); }
+  .menuitem.check:backdrop, .menuitem.check:backdrop:hover {
+    color: rgba(84, 89, 90, 0.1); }
 
 .view.check {
   color: rgba(46, 52, 54, 0.1);
@@ -1748,6 +1737,8 @@ GtkSwitch {
       color: transparent; }
   .menuitem.radio:inconsistent {
     -gtk-icon-source: -gtk-icontheme("radio-mixed-symbolic"); }
+  .menuitem.radio:backdrop, .menuitem.radio:backdrop:hover {
+    color: rgba(84, 89, 90, 0.1); }
 
 .view.radio {
   color: rgba(46, 52, 54, 0.1);
@@ -2249,11 +2240,11 @@ GtkLevelBar.vertical {
     .level-bar.fill-block.empty-fill-block:backdrop {
       border-color: rgba(84, 89, 90, 0.15); }
 
-.view:selected, .view:selected:focus, .view:selected:hover, GtkLabel:selected, GtkLabel:selected:focus, 
GtkLabel:selected:hover, GtkLabel:backdrop:selected, .entry:selected, .entry:selected:focus {
+.view:selected, .view:selected:focus, .view:selected:hover, GtkLabel:selected, GtkLabel:selected:focus, 
GtkLabel:selected:hover, GtkLabel:backdrop:selected, .entry:selected, .entry:selected:focus, 
.menuitem.button.flat:selected {
   background-color: #4a90d9;
   color: white;
   outline-color: rgba(255, 255, 255, 0.3); }
-  .view:backdrop:selected, GtkLabel:backdrop:selected, .entry:backdrop:selected {
+  .view:backdrop:selected, GtkLabel:backdrop:selected, .entry:backdrop:selected, 
.menuitem.button.flat:backdrop:selected {
     color: #fcfcfc; }
 
 /**********