[gtk+/lapo-overlay: 2/2] Temporary hack to avoid fading overlay scrollbars

[Matthias Clasen <matthiasc src gnome org>]

commit 0d63fdadfe471359b1f6fe45a92aa216480a73b5
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Oct 27 19:05:10 2014 -0400

    Temporary hack to avoid fading overlay scrollbars
    
    Temporarily allow disabling the fade out of overlay scrollbars
    by setting GTK_OVERLAY_SCROLLING_NO_FADE=1. This is meant to
    facilitate theming the overlay scrollbars.

 gtk/gtkscrolledwindow.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
index 5a0b410..79848ba 100644
--- a/gtk/gtkscrolledwindow.c
+++ b/gtk/gtkscrolledwindow.c
@@ -3397,7 +3397,8 @@ indicator_set_fade (Indicator *indicator,
   if (visible && !gdk_window_is_visible (indicator->window))
     {
       gdk_window_show (indicator->window);
-      indicator->conceil_timer = g_timeout_add (INDICATOR_FADE_OUT_TIME, maybe_hide_indicator, indicator);
+      if (!g_getenv ("GTK_OVERLAY_SCROLLING_NO_FADE"))
+        indicator->conceil_timer = g_timeout_add (INDICATOR_FADE_OUT_TIME, maybe_hide_indicator, indicator);
     }
   if (!visible && gdk_window_is_visible (indicator->window))
     {
@@ -3589,6 +3590,9 @@ setup_indicator (GtkScrolledWindow *scrolled_window,
   gdk_window_hide (indicator->window);
   gtk_widget_set_opacity (scrollbar, 0.0);
   indicator->current_pos = 0.0;
+
+  if (g_getenv ("GTK_OVERLAY_SCROLLING_NO_FADE"))
+    indicator_start_fade (indicator, 1.0);
 }
 
 static void