[gtk+/gtk-2-22] Add a missing accessor for GdkDragContext->source_window.

[Cosimo Cecchi <cosimoc src gnome org>]

commit b5fdb452594610df28e0507e39192a2f5cbcc13d
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Thu Jun 10 15:52:45 2010 +0200

    Add a missing accessor for GdkDragContext->source_window.

 docs/reference/gdk/gdk-sections.txt |    1 +
 gdk/gdk.symbols                     |    1 +
 gdk/gdkdnd.c                        |   18 ++++++++++++++++++
 gdk/gdkdnd.h                        |    2 ++
 4 files changed, 22 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gdk/gdk-sections.txt b/docs/reference/gdk/gdk-sections.txt
index 5d05c99..50617cb 100644
--- a/docs/reference/gdk/gdk-sections.txt
+++ b/docs/reference/gdk/gdk-sections.txt
@@ -1235,6 +1235,7 @@ gdk_drag_drop
 gdk_drag_find_window
 gdk_drag_find_window_for_screen
 gdk_drag_context_ref
+gdk_drag_context_get_source_window
 gdk_drag_begin
 gdk_drag_motion
 gdk_drop_finish
diff --git a/gdk/gdk.symbols b/gdk/gdk.symbols
index f1d9332..b900b5f 100644
--- a/gdk/gdk.symbols
+++ b/gdk/gdk.symbols
@@ -539,6 +539,7 @@ gdk_drag_context_get_actions
 gdk_drag_context_get_selected_action
 gdk_drag_context_get_suggested_action
 gdk_drag_context_list_targets
+gdk_drag_context_get_source_window
 gdk_drag_find_window
 gdk_drag_get_protocol
 #endif
diff --git a/gdk/gdkdnd.c b/gdk/gdkdnd.c
index 2e32da8..2043094 100644
--- a/gdk/gdkdnd.c
+++ b/gdk/gdkdnd.c
@@ -150,5 +150,23 @@ gdk_drag_context_get_selected_action (GdkDragContext *context)
   return context->action;
 }
 
+/**
+ * gdk_drag_context_get_source_window:
+ * @context: a #GdkDragContext
+ *
+ * Returns the #GdkWindow where the DND operation started.
+ *
+ * Return value: (transfer none): a #GdkWindow
+ *
+ * Since: 2.22
+ **/
+GdkWindow *
+gdk_drag_context_get_source_window (GdkDragContext *context)
+{
+  g_return_val_if_fail (GDK_IS_DRAG_CONTEXT (context), NULL);
+
+  return context->source_window;
+}
+
 #define __GDK_DND_C__
 #include "gdkaliasdef.c"
diff --git a/gdk/gdkdnd.h b/gdk/gdkdnd.h
index 7d7da43..9d65d79 100644
--- a/gdk/gdkdnd.h
+++ b/gdk/gdkdnd.h
@@ -111,6 +111,8 @@ GdkDragAction    gdk_drag_context_get_actions          (GdkDragContext *context)
 GdkDragAction    gdk_drag_context_get_suggested_action (GdkDragContext *context);
 GdkDragAction    gdk_drag_context_get_selected_action  (GdkDragContext *context);
 
+GdkWindow       *gdk_drag_context_get_source_window    (GdkDragContext *context);
+
 #ifndef GDK_DISABLE_DEPRECATED
 void             gdk_drag_context_ref        (GdkDragContext *context);
 void             gdk_drag_context_unref      (GdkDragContext *context);