[PATCH 08/13] ivi-shell: add new method to remove a callback to get notification of ivi_surface property changes.

[Nobuhiko Tanibata]

From: Nobuhiko Tanibata <nobuhiko_tanib...@xddp.denso.co.jp>

To get property changes of ivi_surface, callbacks can be registered.
However there was no API to remove a callback rather than remove all
callbacks by using surface_remove_notification.
surface_remove_notification_by_callback can do it.

Signed-off-by: Nobuhiko Tanibata <nobuhiko_tanib...@xddp.denso.co.jp>
Acked-by: Pekka Paalanen <pekka.paala...@collabora.co.uk>
---
 ivi-shell/ivi-layout-export.h |  7 +++++++
 ivi-shell/ivi-layout.c        | 21 +++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/ivi-shell/ivi-layout-export.h b/ivi-shell/ivi-layout-export.h
index 53c4b44..ed8db9d 100644
--- a/ivi-shell/ivi-layout-export.h
+++ b/ivi-shell/ivi-layout-export.h
@@ -783,6 +783,13 @@ struct ivi_controller_interface {
                                int32_t x, int32_t y,
                                int32_t width, int32_t height);
 
+       /**
+        * remove notification by callback on property changes of ivi_surface
+        */
+       void (*surface_remove_notification_by_callback)(struct 
ivi_layout_surface *ivisurf,
+                                                       
surface_property_notification_func callback,
+                                                       void *userdata);
+
 };
 
 #ifdef __cplusplus
diff --git a/ivi-shell/ivi-layout.c b/ivi-shell/ivi-layout.c
index d7108b6..6dc5723 100644
--- a/ivi-shell/ivi-layout.c
+++ b/ivi-shell/ivi-layout.c
@@ -111,6 +111,9 @@ struct ivi_layout_notification_callback {
        void *data;
 };
 
+static void
+remove_notification(struct wl_list *listener_list, void *callback, void 
*userdata);
+
 static struct ivi_layout ivilayout = {0};
 
 struct ivi_layout *
@@ -319,6 +322,19 @@ ivi_layout_surface_remove_notification(struct 
ivi_layout_surface *ivisurf)
        remove_all_notification(&ivisurf->property_changed.listener_list);
 }
 
+static void
+ivi_layout_surface_remove_notification_by_callback(struct ivi_layout_surface 
*ivisurf,
+                                                  
surface_property_notification_func callback,
+                                                  void *userdata)
+{
+       if (ivisurf == NULL) {
+               weston_log("ivi_layout_surface_remove_notification_by_callback: 
invalid argument\n");
+               return;
+       }
+
+       remove_notification(&ivisurf->property_changed.listener_list, callback, 
userdata);
+}
+
 /**
  * Called at destruction of wl_surface/ivi_surface
  */
@@ -2964,6 +2980,11 @@ static struct ivi_controller_interface 
ivi_controller_interface = {
         */
        .surface_get_size               = ivi_layout_surface_get_size,
        .surface_dump                   = ivi_layout_surface_dump,
+
+       /**
+        * remove notification by callback on property changes of ivi_surface
+        */
+       .surface_remove_notification_by_callback        = 
ivi_layout_surface_remove_notification_by_callback
 };
 
 int
-- 
1.8.3.1

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