自学教程：C++ ATK_IS_OBJECT函数代码示例

void_do_test(AtkObject *obj){   const char *type_name = g_type_name(G_TYPE_FROM_INSTANCE(obj));   g_assert(ATK_IS_OBJECT(obj));   g_assert_cmpstr(type_name, ==, "EailFlipselector");   g_assert(atk_object_get_n_accessible_children(obj) == ITEMS_COUNT);   /*    * AtkSelection tests    */   g_assert(ATK_IS_SELECTION(obj));   /* atk_selection_add_selection test */   g_assert(atk_selection_add_selection(ATK_SELECTION(obj), ITEM_SEL_EINA));   g_assert(atk_selection_is_child_selected(ATK_SELECTION(obj), ITEM_SEL_EINA));   /* atk_selection_clear_selection test */   g_assert(atk_selection_clear_selection(ATK_SELECTION(obj)) == FALSE);   /* eail_flipselector_ref_selection test */   g_assert(atk_selection_is_child_selected(ATK_SELECTION(obj), ITEM_SEL_EINA));   /* atk_selection_get_selection_count test */   g_assert(atk_selection_get_selection_count(ATK_SELECTION(obj)) == MAX_SELECTIONS);   /* atk_selection_is_child_selected test */   g_assert(atk_selection_is_child_selected(ATK_SELECTION(obj), ITEM_SEL_EINA));   /* atk_selection_remove_selection test */   g_assert(atk_selection_remove_selection(ATK_SELECTION(obj), ITEM_SEL_EINA));   g_assert(atk_selection_is_child_selected(ATK_SELECTION(obj), ITEM_SEL_ELM));   /* atk_selection_select_all_selection test */   g_assert(atk_selection_select_all_selection(ATK_SELECTION(obj)) == FALSE);   /*    * AtkAction tests    */   g_assert(ATK_IS_ACTION(obj));   /* atk_action_get_n_actions test */   g_assert(atk_action_get_n_actions(ATK_ACTION(obj)) == ACTIONS_COUNT);   /* test existing actions */   g_assert(atk_selection_add_selection(ATK_SELECTION(obj), ITEM_SEL_EINA));   eailu_test_action_activate(ATK_ACTION(obj), "next");   g_assert(atk_selection_is_child_selected(ATK_SELECTION(obj), ITEM_SEL_EDJE));   eailu_test_action_activate(ATK_ACTION(obj), "prev");   g_assert(atk_selection_is_child_selected(ATK_SELECTION(obj), ITEM_SEL_EINA));   /* test for non-existing action */   g_assert((eailu_get_action_number(ATK_ACTION(obj), "typo")) == -1);   /* test set/get action description */   eailu_test_action_description_all(ATK_ACTION(obj));}

JSRetainPtr<JSStringRef> AccessibilityUIElement::allAttributes(){    if (!ATK_IS_OBJECT(m_element.get()))        return JSStringCreateWithCharacters(0, 0);    return JSStringCreateWithUTF8CString(attributesOfElement(this).utf8().data());}

double AccessibilityUIElement::intValue() const{    if (!ATK_IS_OBJECT(m_element.get()))        return 0;    if (ATK_IS_VALUE(m_element.get())) {        GValue value = G_VALUE_INIT;        atk_value_get_current_value(ATK_VALUE(m_element.get()), &value);        if (!G_VALUE_HOLDS_FLOAT(&value))            return 0;        return g_value_get_float(&value);    }    // Consider headings as an special case when returning the "int value" of    // an AccessibilityUIElement, so we can reuse some tests to check the level    // both for HTML headings and objects with the aria-level attribute.    if (atk_object_get_role(ATK_OBJECT(m_element.get())) == ATK_ROLE_HEADING) {        String headingLevel = getAttributeSetValueForId(ATK_OBJECT(m_element.get()), ObjectAttributeType, "level");        bool ok;        double headingLevelValue = headingLevel.toDouble(&ok);        if (ok)            return headingLevelValue;    }    return 0;}

int AccessibilityUIElement::childrenCount(){    if (!ATK_IS_OBJECT(m_element.get()))        return 0;    return atk_object_get_n_accessible_children(ATK_OBJECT(m_element.get()));}

static DBusMessage *impl_GetChildren (DBusConnection * bus,                  DBusMessage * message, void *user_data){  AtkObject *object = (AtkObject *) user_data;  gint i;  gint count;  DBusMessage *reply;  DBusMessageIter iter, iter_array;  g_return_val_if_fail (ATK_IS_OBJECT (user_data),                        droute_not_yet_handled_error (message));  count = atk_object_get_n_accessible_children (object);  reply = dbus_message_new_method_return (message);  if (!reply)    goto oom;  dbus_message_iter_init_append (reply, &iter);  if (!dbus_message_iter_open_container      (&iter, DBUS_TYPE_ARRAY, "(so)", &iter_array))    goto oom;  for (i = 0; i < count; i++)    {      AtkObject *child = atk_object_ref_accessible_child (object, i);      spi_object_append_reference (&iter_array, child);       if (child)        g_object_unref (child);    }  if (!dbus_message_iter_close_container (&iter, &iter_array))    goto oom;  return reply;oom:  // TODO: handle out-of-memory  return reply;}

static DBusMessage *impl_GetState (DBusConnection * bus, DBusMessage * message, void *user_data){  AtkObject *object = (AtkObject *) user_data;  DBusMessage *reply = NULL;  DBusMessageIter iter, iter_array;  dbus_uint32_t states[2];  guint count;  g_return_val_if_fail (ATK_IS_OBJECT (user_data),                        droute_not_yet_handled_error (message));  reply = dbus_message_new_method_return (message);  dbus_message_iter_init_append (reply, &iter);  spi_atk_state_to_dbus_array (object, states);  dbus_message_iter_open_container (&iter, DBUS_TYPE_ARRAY, "u", &iter_array);  for (count = 0; count < 2; count++)    {      dbus_message_iter_append_basic (&iter_array, DBUS_TYPE_UINT32,                                      &states[count]);    }  dbus_message_iter_close_container (&iter, &iter_array);  return reply;}

PassRefPtr<AccessibilityUIElement> AccessibilityUIElement::parentElement(){    if (!ATK_IS_OBJECT(m_element.get()))        return nullptr;    AtkObject* parent = atk_object_get_parent(ATK_OBJECT(m_element.get()));    return parent ? AccessibilityUIElement::create(parent) : nullptr;}

JSStringRef AccessibilityUIElement::allAttributes(){    if (!m_element)        return JSStringCreateWithCharacters(0, 0);    ASSERT(ATK_IS_OBJECT(m_element));    return JSStringCreateWithUTF8CString(attributeSetToString(atk_object_get_attributes(ATK_OBJECT(m_element))));}

static bool checkElementState(PlatformUIElement element, AtkStateType stateType){    if (!ATK_IS_OBJECT(element))         return false;    GRefPtr<AtkStateSet> stateSet = adoptGRef(atk_object_ref_state_set(ATK_OBJECT(element)));    return atk_state_set_contains_state(stateSet.get(), stateType);}

bool AccessibilityUIElement::hasPopup() const{    if (!ATK_IS_OBJECT(m_element.get()))        return false;    String hasPopupValue = getAttributeSetValueForId(ATK_OBJECT(m_element.get()), ObjectAttributeType, "haspopup");    return equalIgnoringCase(hasPopupValue, "true");}

static AtkObject *get_atkobject_from_servant (PortableServer_Servant servant){  SpiBase *object = SPI_BASE (bonobo_object_from_servant (servant));  g_return_val_if_fail (object, NULL);  g_return_val_if_fail (ATK_IS_OBJECT(object->gobj), NULL);  return ATK_OBJECT(object->gobj);}

static dbus_bool_timpl_get_Locale (DBusMessageIter * iter, void *user_data){  AtkObject *object = (AtkObject *) user_data;  g_return_val_if_fail (ATK_IS_OBJECT (user_data), FALSE);  return droute_return_v_string (iter, atk_object_get_object_locale (object));}

void AccessibilityUIElement::getChildrenWithRange(Vector<RefPtr<AccessibilityUIElement> >& children, unsigned location, unsigned length){    if (!ATK_IS_OBJECT(m_element.get()))        return;    unsigned end = location + length;    for (unsigned i = location; i < end; i++) {        GRefPtr<AtkObject> child = adoptGRef(atk_object_ref_accessible_child(ATK_OBJECT(m_element.get()), i));        children.append(AccessibilityUIElement::create(child.get()));    }}

bool AccessibilityUIElement::isFocusable() const{    if (!ATK_IS_OBJECT(m_element))        return false;    GRefPtr<AtkStateSet> stateSet = adoptGRef(atk_object_ref_state_set(ATK_OBJECT(m_element)));    gboolean isFocusable = atk_state_set_contains_state(stateSet.get(), ATK_STATE_FOCUSABLE);    return isFocusable;}

bool AccessibilityUIElement::isChecked() const{    if (!ATK_IS_OBJECT(m_element))        return false;    GRefPtr<AtkStateSet> stateSet = adoptGRef(atk_object_ref_state_set(ATK_OBJECT(m_element)));    gboolean isChecked = atk_state_set_contains_state(stateSet.get(), ATK_STATE_CHECKED);    return isChecked;}

void AccessibilityUIElement::getChildren(Vector<RefPtr<AccessibilityUIElement> >& children){    if (!ATK_IS_OBJECT(m_element.get()))        return;    int count = childrenCount();    for (int i = 0; i < count; i++) {        GRefPtr<AtkObject> child = adoptGRef(atk_object_ref_accessible_child(ATK_OBJECT(m_element.get()), i));        children.append(AccessibilityUIElement::create(child.get()));    }}