[mutter/wip/carlosg/sanitize-gestures: 20/33] clutter: Drop default action of Pan action

[Carlos Garnacho <carlosg src gnome org>]

commit 8b33cbf3f72506882193da841ab34ead13aff557
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Jun 18 16:36:25 2021 +0200

    clutter: Drop default action of Pan action
    
    By default, the pan action performs matrix translations on the
    child widget. Nobody wants that (or, nobody wants *just* that).
    It's cleaner not to mix mechanism and effect in ClutterGestureAction
    subclasses, so drop this base implementation, and change the signal
    accumulator so it's more similar to event signals (not that it's
    used any longer, anyway).

 clutter/clutter/clutter-pan-action.c | 24 +-----------------------
 clutter/clutter/clutter-pan-action.h |  3 ---
 2 files changed, 1 insertion(+), 26 deletions(-)
---
diff --git a/clutter/clutter/clutter-pan-action.c b/clutter/clutter/clutter-pan-action.c
index 5ad82ff6f5..5521121ce0 100644
--- a/clutter/clutter/clutter-pan-action.c
+++ b/clutter/clutter/clutter-pan-action.c
@@ -348,25 +348,6 @@ gesture_end (ClutterGestureAction *gesture,
     }
 }
 
-static gboolean
-clutter_pan_action_real_pan (ClutterPanAction *self,
-                             ClutterActor     *actor,
-                             gboolean          is_interpolated)
-{
-  gfloat dx, dy;
-  graphene_matrix_t transform;
-  graphene_matrix_t translate;
-
-  clutter_pan_action_get_constrained_motion_delta (self, 0, &dx, &dy);
-
-  clutter_actor_get_child_transform (actor, &transform);
-  graphene_matrix_init_translate (&translate,
-                                  &GRAPHENE_POINT3D_INIT (dx, dy, 0.0f));
-  graphene_matrix_multiply (&translate, &transform, &transform);
-  clutter_actor_set_child_transform (actor, &transform);
-  return TRUE;
-}
-
 static void
 clutter_pan_action_set_property (GObject      *gobject,
                                  guint         prop_id,
@@ -483,8 +464,6 @@ clutter_pan_action_class_init (ClutterPanActionClass *klass)
   ClutterGestureActionClass *gesture_class =
       CLUTTER_GESTURE_ACTION_CLASS (klass);
 
-  klass->pan = clutter_pan_action_real_pan;
-
   gesture_class->gesture_prepare = gesture_prepare;
   gesture_class->gesture_begin = gesture_begin;
   gesture_class->gesture_progress = gesture_progress;
@@ -586,8 +565,7 @@ clutter_pan_action_class_init (ClutterPanActionClass *klass)
     g_signal_new (I_("pan"),
                   G_TYPE_FROM_CLASS (klass),
                   G_SIGNAL_RUN_LAST,
-                  G_STRUCT_OFFSET (ClutterPanActionClass, pan),
-                  _clutter_boolean_continue_accumulator, NULL,
+                  0, g_signal_accumulator_true_handled, NULL,
                   _clutter_marshal_BOOLEAN__OBJECT_BOOLEAN,
                   G_TYPE_BOOLEAN, 2,
                   CLUTTER_TYPE_ACTOR,
diff --git a/clutter/clutter/clutter-pan-action.h b/clutter/clutter/clutter-pan-action.h
index 64115b69bc..c740147922 100644
--- a/clutter/clutter/clutter-pan-action.h
+++ b/clutter/clutter/clutter-pan-action.h
@@ -84,9 +84,6 @@ struct _ClutterPanActionClass
   ClutterGestureActionClass parent_class;
 
   /*< public >*/
-  gboolean (* pan)               (ClutterPanAction    *action,
-                                  ClutterActor        *actor,
-                                  gboolean             is_interpolated);
   void     (* pan_stopped)       (ClutterPanAction    *action,
                                   ClutterActor        *actor);