[retro-gtk] core-view: Specify an event mask

[Adrien Plazas <aplazas src gnome org>]

commit d73ab268ccaaefee1bdf80103a08bfa707b0c335
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Mon Oct 26 23:43:19 2020 +0500

    core-view: Specify an event mask
    
    GtkEventBox does specify a few types by default, but not everything we use.
    
    Specifically, it doesn't specify KEY_PRESS_MASK and KEY_RELEASE_MASK, which
    means our keyboard input works by accident (likely because GtkWindow adds
    it, and more importantly it means touch input doesn't work.

 retro-gtk/retro-core-view.c | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/retro-gtk/retro-core-view.c b/retro-gtk/retro-core-view.c
index 0c4e4995..83990da1 100644
--- a/retro-gtk/retro-core-view.c
+++ b/retro-gtk/retro-core-view.c
@@ -479,6 +479,11 @@ retro_core_view_init (RetroCoreView *self)
   g_object_set ((GtkWidget*) self, "can-default", TRUE, NULL);
   g_object_set ((GtkWidget*) self, "can-focus", TRUE, NULL);
 
+  gtk_widget_add_events (GTK_WIDGET (self),
+                         GDK_KEY_PRESS_MASK |
+                         GDK_KEY_RELEASE_MASK |
+                         GDK_TOUCH_MASK);
+
   self->display = g_object_ref_sink (retro_gl_display_new ());
   gtk_widget_set_visible (GTK_WIDGET (self->display), TRUE);
   g_object_set (GTK_WIDGET (self->display), "can-focus", FALSE, NULL);