iconhelper: Query size via CSS

Instead of looking at the icon size, look at the CSS value for
-gtk-icon-size. Set style classes depending on icon size instead.

Trivially change Adwaita and HighContrast to report the same values as
before.

2 files changed, 16 insertions, 0 deletions

diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 05037eb227..599631f6c5 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -47,6 +47,14 @@ row:focus(visible) {
   }
 }
 
+.normal-icons {
+  -gtk-icon-size: 16px;
+}
+
+.large-icons {
+  -gtk-icon-size: 32px;
+}
+
 /*
    These wildcard seems unavoidable, need to investigate.
    Wildcards are bad and troublesome, use them with care,
diff --git a/gtk/theme/HighContrast/_common.scss b/gtk/theme/HighContrast/_common.scss
index c172362ce6..e71b9261cf 100644
--- a/gtk/theme/HighContrast/_common.scss
+++ b/gtk/theme/HighContrast/_common.scss
@@ -88,6 +88,14 @@ $ease-out-quad: cubic-bezier(0.25, 0.46, 0.45, 0.94);
   }
 }
 
+.normal-icons {
+  -gtk-icon-size: 16px;
+}
+
+.large-icons {
+  -gtk-icon-size: 32px;
+}
+
 .view {
   color: $fg_color;
   background-color: $base_color;