[atk: 1/2] atksocket: make get_extents return parent extents by default

[Samuel Thibault <sthibaul src gnome org>]

commit 4b5ed8630c5ae9ef37884c4199da8463b7e5a127
Author: Samuel Thibault <samuel thibault ens-lyon org>
Date:   Thu Aug 15 02:18:42 2019 +0200

    atksocket: make get_extents return parent extents by default
    
    The socket itself will usually just inherit the parent's extents, so this
    makes a convenient good default.
    
    As discussed on
    https://mail.gnome.org/archives/gnome-accessibility-devel/2019-August/msg00001.html

 atk/atksocket.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
---
diff --git a/atk/atksocket.c b/atk/atksocket.c
index c8e03f7..b6ca43d 100644
--- a/atk/atksocket.c
+++ b/atk/atksocket.c
@@ -56,6 +56,13 @@ static void atk_socket_finalize   (GObject *obj);
 
 static void atk_component_interface_init (AtkComponentIface *iface);
 
+static void atk_socket_component_real_get_extents (AtkComponent *component,
+                                                   gint         *x,
+                                                   gint         *y,
+                                                   gint         *width,
+                                                   gint         *height,
+                                                   AtkCoordType  coord_type);
+
 G_DEFINE_TYPE_WITH_CODE (AtkSocket, atk_socket, ATK_TYPE_OBJECT,
                          G_IMPLEMENT_INTERFACE (ATK_TYPE_COMPONENT, atk_component_interface_init))
 
@@ -94,6 +101,7 @@ atk_socket_finalize (GObject *_obj)
 static void
 atk_component_interface_init (AtkComponentIface *iface)
 {
+  iface->get_extents = atk_socket_component_real_get_extents;
 }
 
 /**
@@ -162,3 +170,30 @@ atk_socket_is_occupied (AtkSocket* obj)
 
   return (obj->embedded_plug_id != NULL);
 }
+
+static void
+atk_socket_component_real_get_extents (AtkComponent *component,
+                                       gint         *x,
+                                       gint         *y,
+                                       gint         *width,
+                                       gint         *height,
+                                       AtkCoordType  coord_type)
+{
+  AtkObject *parent = atk_object_get_parent (ATK_OBJECT (component));
+
+  if (parent == NULL || !ATK_IS_COMPONENT (parent))
+  {
+    if (x)
+      *x = -1;
+    if (y)
+      *y = -1;
+    if (width)
+      *width = -1;
+    if (height)
+      *height = -1;
+
+    return;
+  }
+
+  atk_component_get_extents (ATK_COMPONENT (parent), x, y, width, height, coord_type);
+}