[gtk/event-controller-sensitive: 1/4] event controller: Don't deliver events to insensitive widgets

[Matthias Clasen <matthiasc src gnome org>]

commit 65233726f840adb97caff13f131a803ea3cd31e7
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu May 2 19:11:30 2019 +0000

    event controller: Don't deliver events to insensitive widgets
    
    This is another way to avoid delivering events
    to insensitive widgets.

 gtk/gtkeventcontroller.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)
---
diff --git a/gtk/gtkeventcontroller.c b/gtk/gtkeventcontroller.c
index aed43c3d5e..4cfb498f2f 100644
--- a/gtk/gtkeventcontroller.c
+++ b/gtk/gtkeventcontroller.c
@@ -63,6 +63,7 @@ gtk_event_controller_set_widget (GtkEventController *self,
   GtkEventControllerPrivate *priv = gtk_event_controller_get_instance_private (self);
 
   priv->widget = widget;
+  priv->responsive = gtk_widget_get_sensitive (widget);
 }
 
 static void
@@ -73,6 +74,18 @@ gtk_event_controller_unset_widget (GtkEventController *self)
   priv->widget = NULL;
 }
 
+static gboolean
+gtk_event_controller_filter_event_default (GtkEventController *self,
+                                           const GdkEvent     *event)
+{
+  GtkEventControllerPrivate *priv = gtk_event_controller_get_instance_private (self);
+
+  if (priv->widget)
+    return !gtk_widget_get_sensitive (priv->widget);
+
+  return FALSE;
+}
+
 static gboolean
 gtk_event_controller_handle_event_default (GtkEventController *self,
                                            const GdkEvent     *event)
@@ -128,7 +141,7 @@ gtk_event_controller_class_init (GtkEventControllerClass *klass)
 
   klass->set_widget = gtk_event_controller_set_widget;
   klass->unset_widget = gtk_event_controller_unset_widget;
-  klass->filter_event = gtk_event_controller_handle_event_default;
+  klass->filter_event = gtk_event_controller_filter_event_default;
   klass->handle_event = gtk_event_controller_handle_event_default;
 
   object_class->set_property = gtk_event_controller_set_property;