[gnome-software/wip/wjt/disable-scroll-wheel-on-featured-carousel] gs-featured-carousel: Disable scroll by mouse wheel on the HdyCarousel

[Will Thompson <wjt src gnome org>]

commit 7dfa3f8f0387e4f6c392816a4ab48ce2017994b2
Author: Milan Crha <mcrha redhat com>
Date:   Mon Jan 3 15:09:15 2022 +0100

    gs-featured-carousel: Disable scroll by mouse wheel on the HdyCarousel
    
    To scroll the page, not the carousel.
    
    Backport of abed6fef318fb16f9b11c05f89a3b31886ac58a6 to gnome-41 branch.
    
    Closes https://gitlab.gnome.org/GNOME/gnome-software/-/issues/1592

 src/gs-featured-carousel.c | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/src/gs-featured-carousel.c b/src/gs-featured-carousel.c
index f1de11e83..2e893fc2a 100644
--- a/src/gs-featured-carousel.c
+++ b/src/gs-featured-carousel.c
@@ -192,6 +192,12 @@ gs_featured_carousel_init (GsFeaturedCarousel *self)
        gtk_widget_set_has_window (GTK_WIDGET (self), FALSE);
        gtk_widget_init_template (GTK_WIDGET (self));
 
+#if HDY_CHECK_VERSION(1, 3, 0)
+       /* Disable scrolling through the carousel, as it’s typically used
+        * in category pages which are themselves scrollable. */
+       hdy_carousel_set_allow_scroll_wheel (HDY_CAROUSEL (self->carousel), FALSE);
+#endif
+
        /* Ensure the text directions are up to date */
        next_button_direction_changed_cb (GTK_WIDGET (self->next_button_image), GTK_TEXT_DIR_NONE, self);
        previous_button_direction_changed_cb (GTK_WIDGET (self->previous_button_image), GTK_TEXT_DIR_NONE, 
self);