From a82cbdef2ce9394d8b9c656dfc9c97d8f08731ef Mon Sep 17 00:00:00 2001
From: Jaehwan Kim <jae.hwan.kim@samsung.com>
Date: Tue, 18 Jun 2013 16:33:28 +0900
Subject: [PATCH] In case of scroll in scroll, the child scroller have to
 bounce if parents don't have a bounce.

Change-Id: Ia101c9bb22888bb96a092b302337a161acaca7d8
---
 src/lib/elm_interface_scrollable.c |  6 ++++--
 src/lib/elm_widget.c               | 28 ++++++++++++++++++++++++++++
 src/lib/elm_widget.h               |  1 +
 3 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/src/lib/elm_interface_scrollable.c b/src/lib/elm_interface_scrollable.c
index 540be30..e931fc3 100644
--- a/src/lib/elm_interface_scrollable.c
+++ b/src/lib/elm_interface_scrollable.c
@@ -2548,19 +2548,21 @@ _elm_scroll_post_event_move(void *data,
                             Evas *e __UNUSED__)
 {
    Elm_Scrollable_Smart_Interface_Data *sid = data;
+   Eina_Bool horiz, vert;
 
    if (sid->down.want_dragged)
      {
         int start = 0;
 
+        elm_widget_parents_bounce_get(sid->obj, &horiz, &vert);
         if (sid->down.hold_parent)
           {
-             if ((sid->down.dir_x) &&
+             if ((sid->down.dir_x) && horiz &&
                  !_elm_scroll_can_scroll(sid, sid->down.hdir))
                {
                   sid->down.dir_x = EINA_FALSE;
                }
-             if ((sid->down.dir_y) &&
+             if ((sid->down.dir_y) && vert &&
                  !_elm_scroll_can_scroll(sid, sid->down.vdir))
                {
                   sid->down.dir_y = EINA_FALSE;
diff --git a/src/lib/elm_widget.c b/src/lib/elm_widget.c
index e52174f..dbc2dd7 100644
--- a/src/lib/elm_widget.c
+++ b/src/lib/elm_widget.c
@@ -3071,6 +3071,34 @@ elm_widget_focus_region_get(const Evas_Object *obj,
    return EINA_TRUE;
 }
 
+EAPI void
+elm_widget_parents_bounce_get(Evas_Object *obj,
+                              Eina_Bool *horiz, Eina_Bool *vert)
+{
+   ELM_WIDGET_CHECK_OR_RETURN(obj);
+
+   Evas_Object *parent_obj = obj;
+   Eina_Bool h, v;
+
+   *horiz = EINA_FALSE;
+   *vert = EINA_FALSE;
+
+   do
+     {
+        parent_obj = elm_widget_parent_get(parent_obj);
+        if ((!parent_obj) || (!_elm_widget_is(parent_obj))) break;
+
+        if (_elm_scrollable_is(parent_obj))
+          {
+             ELM_SCROLLABLE_IFACE_GET(parent_obj, s_iface);
+             s_iface->bounce_allow_get(parent_obj, &h, &v);
+             if (h) *horiz = EINA_TRUE;
+             if (v) *vert = EINA_TRUE;
+          }
+     }
+   while (parent_obj);
+}
+
 EAPI Eina_List *
 elm_widget_scrollable_children_get(Evas_Object *obj)
 {
diff --git a/src/lib/elm_widget.h b/src/lib/elm_widget.h
index 5fc512e..deb64e8 100644
--- a/src/lib/elm_widget.h
+++ b/src/lib/elm_widget.h
@@ -768,6 +768,7 @@ EAPI Eina_Bool        elm_widget_disabled_get(const Evas_Object *obj);
 EAPI void             elm_widget_show_region_set(Evas_Object *obj, Evas_Coord x, Evas_Coord y, Evas_Coord w, Evas_Coord h, Eina_Bool forceshow);
 EAPI void             elm_widget_show_region_get(const Evas_Object *obj, Evas_Coord *x, Evas_Coord *y, Evas_Coord *w, Evas_Coord *h);
 EAPI Eina_Bool        elm_widget_focus_region_get(const Evas_Object *obj, Evas_Coord *x, Evas_Coord *y, Evas_Coord *w, Evas_Coord *h);
+EAPI void             elm_widget_parents_bounce_get(Evas_Object *obj, Eina_Bool *horiz, Eina_Bool *vert);
 EAPI void             elm_widget_scroll_hold_push(Evas_Object *obj);
 EAPI void             elm_widget_scroll_hold_pop(Evas_Object *obj);
 EAPI int              elm_widget_scroll_hold_get(const Evas_Object *obj);
-- 
2.7.4