[gtk/wip/jimmac/treeview-progressbar] Adwaita: update treeview progressbars

[Jakub Steiner <jimmac src gnome org>]

commit 2959b2075b670acd4501c56a2f67ff1d667b3546
Author: Jakub Steiner <jimmac gmail com>
Date:   Fri Jun 7 10:46:42 2019 +0200

    Adwaita: update treeview progressbars
    
    - The style resembles Clearlooks and is way outdated.
    
    https://gitlab.gnome.org/GNOME/gtk/issues/1938

 gtk/theme/Adwaita/_common.scss           | 27 ++++-----------------------
 gtk/theme/Adwaita/gtk-contained-dark.css | 12 ++++++------
 gtk/theme/Adwaita/gtk-contained.css      | 10 +++++-----
 3 files changed, 15 insertions(+), 34 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 828e78c4db..a596a9c9af 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -1972,36 +1972,26 @@ treeview.view {
   &.progressbar { // progress bar in treeviews
     @if $variant == light { color: $base_color; }
 
-    border: 1px solid $selected_borders_color;
-    border-radius: 4px;
     background-color: $selected_bg_color;
-    background-image: linear-gradient(to bottom,
-                                      $selected_bg_color,
-                                      darken($selected_bg_color, 10%));
-    box-shadow: inset 0 1px if($variant=='light', transparentize(white, 0.7), transparentize(white, 0.85)),
-                      0 1px if($variant=='light', transparentize(black, 0.8), transparentize(black, 0.9));
+    background-image: image($selected_bg_color);
+    box-shadow: none;
 
     &:selected {
       &:focus, & {
-        border-radius: 4px;
 
         @if $variant == 'light' {
           color: $selected_bg_color;
-          box-shadow: none;
+
         }
 
         @else { box-shadow: inset 0 1px transparentize(white, 0.95); }
 
-        background-image: linear-gradient(to bottom, $base_color, darken($base_color,10%));
+        background-image: image($base_color);
 
         &:backdrop {
           @if $variant == 'light' {
             color: $selected_bg_color;
-            border-color: $selected_borders_color; // otherwise it gets inherited by .view(?!?)
           }
-
-          @else { border-color: $backdrop_base_color; }
-
           background-color: $backdrop_base_color;
         }
       }
@@ -2010,8 +2000,6 @@ treeview.view {
     &:backdrop {
       @if $variant == 'light' { color: $backdrop_base_color; }
 
-      @else { border-color: $backdrop_base_color; }
-
       background-image: none;
       box-shadow: none;
     }
@@ -2019,20 +2007,13 @@ treeview.view {
 
   &.trough { // progress bar trough in treeviews
     background-color: transparentize($fg_color,0.9);
-    border-radius: 4px;
 
     &:selected {
       &:focus, & {
         background-color: if($variant == 'light',
                              transparentize($selected_fg_color, 0.7),
                              darken($selected_bg_color, 10%));
-        border-radius: 4px;
 
-        @if $variant == 'light' {
-          border-width: 1px 0;
-          border-style: solid;
-          border-color: $selected_bg_color;
-        }
       }
     }
   }
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index df6b6ab05c..17c9a24f39 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -770,17 +770,17 @@ treeview.view.expander:checked { -gtk-icon-source: -gtk-icontheme("pan-down-symb
 
 treeview.view.expander:backdrop { color: #747473; }
 
-treeview.view.progressbar { border: 1px solid #030c17; border-radius: 4px; background-color: #15539e; 
background-image: linear-gradient(to bottom, #15539e, #0f3b71); box-shadow: inset 0 1px rgba(255, 255, 255, 
0.15), 0 1px rgba(0, 0, 0, 0.1); }
+treeview.view.progressbar { background-color: #15539e; background-image: image(#15539e); box-shadow: none; }
 
-treeview.view.progressbar:selected:focus, treeview.view.progressbar:selected { border-radius: 4px; 
box-shadow: inset 0 1px rgba(255, 255, 255, 0.05); background-image: linear-gradient(to bottom, #2d2d2d, 
#141414); }
+treeview.view.progressbar:selected:focus, treeview.view.progressbar:selected { box-shadow: inset 0 1px 
rgba(255, 255, 255, 0.05); background-image: image(#2d2d2d); }
 
-treeview.view.progressbar:selected:focus:backdrop, treeview.view.progressbar:selected:backdrop { 
border-color: #303030; background-color: #303030; }
+treeview.view.progressbar:selected:focus:backdrop, treeview.view.progressbar:selected:backdrop { 
background-color: #303030; }
 
-treeview.view.progressbar:backdrop { border-color: #303030; background-image: none; box-shadow: none; }
+treeview.view.progressbar:backdrop { background-image: none; box-shadow: none; }
 
-treeview.view.trough { background-color: rgba(238, 238, 236, 0.1); border-radius: 4px; }
+treeview.view.trough { background-color: rgba(238, 238, 236, 0.1); }
 
-treeview.view.trough:selected:focus, treeview.view.trough:selected { background-color: #0f3b71; 
border-radius: 4px; }
+treeview.view.trough:selected:focus, treeview.view.trough:selected { background-color: #0f3b71; }
 
 treeview.view header button { color: #8e8e8d; background-color: #2d2d2d; font-weight: bold; text-shadow: 
none; box-shadow: none; }
 
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index c8dbbb4961..4362a7ff71 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -778,17 +778,17 @@ treeview.view.expander:checked { -gtk-icon-source: -gtk-icontheme("pan-down-symb
 
 treeview.view.expander:backdrop { color: #b2b4b4; }
 
-treeview.view.progressbar { color: #ffffff; border: 1px solid #185fb4; border-radius: 4px; background-color: 
#3584e4; background-image: linear-gradient(to bottom, #3584e4, #1b6acb); box-shadow: inset 0 1px rgba(255, 
255, 255, 0.3), 0 1px rgba(0, 0, 0, 0.2); }
+treeview.view.progressbar { color: #ffffff; background-color: #3584e4; background-image: image(#3584e4); 
box-shadow: none; }
 
-treeview.view.progressbar:selected:focus, treeview.view.progressbar:selected { border-radius: 4px; color: 
#3584e4; box-shadow: none; background-image: linear-gradient(to bottom, #ffffff, #e6e6e6); }
+treeview.view.progressbar:selected:focus, treeview.view.progressbar:selected { color: #3584e4; 
background-image: image(#ffffff); }
 
-treeview.view.progressbar:selected:focus:backdrop, treeview.view.progressbar:selected:backdrop { color: 
#3584e4; border-color: #185fb4; background-color: #fcfcfc; }
+treeview.view.progressbar:selected:focus:backdrop, treeview.view.progressbar:selected:backdrop { color: 
#3584e4; background-color: #fcfcfc; }
 
 treeview.view.progressbar:backdrop { color: #fcfcfc; background-image: none; box-shadow: none; }
 
-treeview.view.trough { background-color: rgba(46, 52, 54, 0.1); border-radius: 4px; }
+treeview.view.trough { background-color: rgba(46, 52, 54, 0.1); }
 
-treeview.view.trough:selected:focus, treeview.view.trough:selected { background-color: rgba(255, 255, 255, 
0.3); border-radius: 4px; border-width: 1px 0; border-style: solid; border-color: #3584e4; }
+treeview.view.trough:selected:focus, treeview.view.trough:selected { background-color: rgba(255, 255, 255, 
0.3); }
 
 treeview.view header button { color: #979a9b; background-color: #ffffff; font-weight: bold; text-shadow: 
none; box-shadow: none; }