[java-atk-wrapper/wip] JNI: Create jaw_object_ref_relation_set

[Magdalen Berns <mberns src gnome org>]

commit fe3cbcf53fd5da0ebaaae763a9ca91e5fb20570e
Author: Magdalen Berns <m berns thismagpie com>
Date:   Thu Jun 25 19:03:49 2015 +0100

    JNI: Create jaw_object_ref_relation_set
    
    Bug: https://bugzilla.gnome.org/show_bug.cgi?id=750641

 jni/src/jawimpl.c   |    6 ++++
 jni/src/jawimpl.h   |    1 +
 jni/src/jawobject.c |   81 +++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 88 insertions(+), 0 deletions(-)
---
diff --git a/jni/src/jawimpl.c b/jni/src/jawimpl.c
index 6eede1d..d63e689 100644
--- a/jni/src/jawimpl.c
+++ b/jni/src/jawimpl.c
@@ -729,6 +729,12 @@ get_atk_relation_type_from_java_key (JNIEnv *jniEnv, jstring jrel_key)
   return ATK_RELATION_NULL;
 }
 
+AtkRelationType
+jaw_impl_get_atk_relation_type(JNIEnv *env, jstring jrel_key)
+{
+  return get_atk_relation_type_from_java_key(env, jrel_key);
+}
+
 static AtkRelationSet*
 jaw_impl_ref_relation_set (AtkObject *atk_obj)
 {
diff --git a/jni/src/jawimpl.h b/jni/src/jawimpl.h
index fdd4900..8c801a1 100644
--- a/jni/src/jawimpl.h
+++ b/jni/src/jawimpl.h
@@ -54,6 +54,7 @@ JawImpl* jaw_impl_find_instance(JNIEnv*, jobject);
 GHashTable* jaw_impl_get_object_hash_table(void);
 
 GType jaw_impl_get_type (guint);
+AtkRelationType jaw_impl_get_atk_relation_type(JNIEnv *jniEnv, jstring jrel_key);
 
 struct _JawImplClass
 {
diff --git a/jni/src/jawobject.c b/jni/src/jawobject.c
index 4be733e..b64e5f2 100644
--- a/jni/src/jawobject.c
+++ b/jni/src/jawobject.c
@@ -52,6 +52,7 @@ static void jaw_object_set_description (AtkObject *atk_obj, const gchar *descrip
 static void jaw_object_set_parent(AtkObject *atk_obj, AtkObject *parent);
 static void jaw_object_set_role (AtkObject *atk_obj, AtkRole role);
 static const gchar *jaw_object_get_object_locale (AtkObject *atk_obj);
+static AtkRelationSet *jaw_object_ref_relation_set (AtkObject *atk_obj);
 
 static gpointer parent_class = NULL;
 static GHashTable *object_table = NULL;
@@ -108,6 +109,7 @@ jaw_object_class_init (JawObjectClass *klass)
   atk_class->set_parent = jaw_object_set_parent;
   atk_class->set_role = jaw_object_set_role;
   atk_class->get_object_locale = jaw_object_get_object_locale;
+  atk_class->ref_relation_set= jaw_object_ref_relation_set;
 
   atk_class->ref_state_set = jaw_object_ref_state_set;
   atk_class->initialize = jaw_object_initialize;
@@ -531,6 +533,85 @@ static const gchar *jaw_object_get_object_locale (AtkObject *atk_obj)
   return atk_object_get_object_locale((AtkObject*) target_obj);
 }
 
+static AtkRelationSet*
+jaw_object_ref_relation_set (AtkObject *atk_obj)
+{
+  if (atk_obj->relation_set)
+    g_object_unref(G_OBJECT(atk_obj->relation_set));
+  atk_obj->relation_set = atk_relation_set_new();
+  if(atk_obj == NULL)
+    return NULL;
+
+  JawObject *jaw_obj = JAW_OBJECT(atk_obj);
+  jobject ac = jaw_obj->acc_context;
+  JNIEnv *jniEnv = jaw_util_get_jni_env();
+
+  jclass classAccessibleContext = (*jniEnv)->FindClass(jniEnv,
+                                                       "javax/accessibility/AccessibleContext" );
+  jmethodID jmid = (*jniEnv)->GetMethodID(jniEnv,
+                                          classAccessibleContext,
+                                          "getAccessibleRelationSet",
+                                          "()Ljavax/accessibility/AccessibleRelationSet;" );
+  jobject jrel_set = (*jniEnv)->CallObjectMethod( jniEnv, ac, jmid );
+
+  jclass classAccessibleRelationSet = (*jniEnv)->FindClass( jniEnv,
+                                                           "javax/accessibility/AccessibleRelationSet");
+  jmid = (*jniEnv)->GetMethodID(jniEnv,
+                                classAccessibleRelationSet,
+                                "toArray",
+                                "()[Ljavax/accessibility/AccessibleRelation;");
+  jobjectArray jrel_arr = (*jniEnv)->CallObjectMethod(jniEnv, jrel_set, jmid);
+  jsize jarr_size = (*jniEnv)->GetArrayLength(jniEnv, jrel_arr);
+
+  jsize i;
+  for (i = 0; i < jarr_size; i++)
+  {
+    jobject jrel = (*jniEnv)->GetObjectArrayElement(jniEnv, jrel_arr, i);
+    jclass classAccessibleRelation = (*jniEnv)->FindClass(jniEnv,
+                                                          "javax/accessibility/AccessibleRelation");
+    jmid = (*jniEnv)->GetMethodID(jniEnv,
+                                  classAccessibleRelation,
+                                  "getKey",
+                                  "()Ljava/lang/String;");
+    jstring jrel_key = (*jniEnv)->CallObjectMethod( jniEnv, jrel, jmid );
+    AtkRelationType rel_type = jaw_impl_get_atk_relation_type(jniEnv, jrel_key);
+
+    jmid = (*jniEnv)->GetMethodID(jniEnv,
+                                  classAccessibleRelation,
+                                  "getTarget",
+                                  "()[Ljava/lang/Object;");
+    jobjectArray jtarget_arr = (*jniEnv)->CallObjectMethod(jniEnv, jrel, jmid);
+    jsize jtarget_size = (*jniEnv)->GetArrayLength(jniEnv, jtarget_arr);
+
+    jsize j;
+    for (j = 0; j < jtarget_size; j++)
+    {
+      jobject jtarget = (*jniEnv)->GetObjectArrayElement(jniEnv, jtarget_arr, j);
+      jclass classAccessible = (*jniEnv)->FindClass( jniEnv,
+                                                    "javax/accessibility/Accessible");
+      if ((*jniEnv)->IsInstanceOf(jniEnv, jtarget, classAccessible))
+      {
+        jmid = (*jniEnv)->GetMethodID(jniEnv,
+                                      classAccessible,
+                                      "getAccessibleContext",
+                                      "()Ljavax/accessibility/AccessibleContext;");
+        jobject target_ac = (*jniEnv)->CallObjectMethod(jniEnv, jtarget, jmid);
+
+        JawImpl *target_obj = jaw_impl_get_instance(jniEnv, target_ac);
+        if(target_obj == NULL)
+          return NULL;
+        atk_object_add_relationship(atk_obj, rel_type, ATK_OBJECT(target_obj));
+      }
+    }
+  }
+  if(atk_obj->relation_set == NULL)
+    return NULL;
+  if (G_OBJECT(atk_obj->relation_set) != NULL)
+    g_object_ref (atk_obj->relation_set);
+
+  return atk_obj->relation_set;
+}
+
 static JawObject*
 jaw_object_table_lookup (JNIEnv *jniEnv, jobject ac)
 {