[gtk/4.0-backports: 34/53] css: Fix shadow value equal

[Matthias Clasen <matthiasc src gnome org>]

commit 7af9d1fe3d8550a3c8c42a28218b8e85fb94ba6a
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Feb 3 11:21:23 2021 -0500

    css: Fix shadow value equal
    
    This function was not doing the right thing.
    
    Once we are doing the right thing and not compare
    shadows as unequal, some reftests that inhibit
    snapshots for a few frames now hang forever, since
    we are no more redrawing unnecessarily. Fix that
    with an explicit queue_draw.

 gtk/gtkcssshadowvalue.c              | 10 +++++-----
 testsuite/reftests/frame-inhibitor.c |  1 +
 2 files changed, 6 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkcssshadowvalue.c b/gtk/gtkcssshadowvalue.c
index 0429c44be6..8171545149 100644
--- a/gtk/gtkcssshadowvalue.c
+++ b/gtk/gtkcssshadowvalue.c
@@ -152,11 +152,11 @@ gtk_css_value_shadow_equal (const GtkCssValue *value1,
       const ShadowValue *shadow2 = &value2->shadows[i];
 
       if (shadow1->inset != shadow2->inset ||
-          _gtk_css_value_equal (shadow1->hoffset, shadow2->hoffset) ||
-          _gtk_css_value_equal (shadow1->voffset, shadow2->voffset) ||
-          _gtk_css_value_equal (shadow1->radius, shadow2->radius) ||
-          _gtk_css_value_equal (shadow1->spread, shadow2->spread) ||
-          _gtk_css_value_equal (shadow1->color, shadow2->color))
+          !_gtk_css_value_equal (shadow1->hoffset, shadow2->hoffset) ||
+          !_gtk_css_value_equal (shadow1->voffset, shadow2->voffset) ||
+          !_gtk_css_value_equal (shadow1->radius, shadow2->radius) ||
+          !_gtk_css_value_equal (shadow1->spread, shadow2->spread) ||
+          !_gtk_css_value_equal (shadow1->color, shadow2->color))
         return FALSE;
     }
 
diff --git a/testsuite/reftests/frame-inhibitor.c b/testsuite/reftests/frame-inhibitor.c
index 567dc07ae1..9d699c4224 100644
--- a/testsuite/reftests/frame-inhibitor.c
+++ b/testsuite/reftests/frame-inhibitor.c
@@ -30,6 +30,7 @@ tick_callback_for_1_frame (GtkWidget     *widget,
                            gpointer       unused)
 {
   reftest_uninhibit_snapshot ();
+  gtk_widget_queue_draw (widget);
 
   return G_SOURCE_REMOVE;
 }