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      1 /*
      2  * Copyright (C) 2008 Nuanti Ltd.
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Library General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Library General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Library General Public License
     15  * along with this library; see the file COPYING.LIB.  If not, write to
     16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  * Boston, MA 02110-1301, USA.
     18  */
     19 
     20 #include "config.h"
     21 #include "AXObjectCache.h"
     22 
     23 #include "AccessibilityObject.h"
     24 #include "AccessibilityObjectWrapperAtk.h"
     25 
     26 namespace WebCore {
     27 
     28 void AXObjectCache::detachWrapper(AccessibilityObject* obj)
     29 {
     30     webkit_accessible_detach(WEBKIT_ACCESSIBLE(obj->wrapper()));
     31 }
     32 
     33 void AXObjectCache::attachWrapper(AccessibilityObject* obj)
     34 {
     35     AtkObject* atkObj = ATK_OBJECT(webkit_accessible_new(obj));
     36     obj->setWrapper(atkObj);
     37     g_object_unref(atkObj);
     38 }
     39 
     40 void AXObjectCache::postPlatformNotification(AccessibilityObject* coreObject, AXNotification notification)
     41 {
     42     if (notification == AXCheckedStateChanged) {
     43         if (!coreObject->isCheckboxOrRadio())
     44             return;
     45         g_signal_emit_by_name(coreObject->wrapper(), "state-change", "checked", coreObject->isChecked());
     46     } else if (notification == AXSelectedChildrenChanged) {
     47         if (!coreObject->isListBox())
     48             return;
     49         g_signal_emit_by_name(coreObject->wrapper(), "selection-changed");
     50     }
     51 }
     52 
     53 void AXObjectCache::handleFocusedUIElementChanged(RenderObject* oldFocusedRender, RenderObject* newFocusedRender)
     54 {
     55     RefPtr<AccessibilityObject> oldObject = getOrCreate(oldFocusedRender);
     56     if (oldObject) {
     57         g_signal_emit_by_name(oldObject->wrapper(), "focus-event", false);
     58         g_signal_emit_by_name(oldObject->wrapper(), "state-change", "focused", false);
     59     }
     60     RefPtr<AccessibilityObject> newObject = getOrCreate(newFocusedRender);
     61     if (newObject) {
     62         g_signal_emit_by_name(newObject->wrapper(), "focus-event", true);
     63         g_signal_emit_by_name(newObject->wrapper(), "state-change", "focused", true);
     64     }
     65 }
     66 
     67 void AXObjectCache::handleScrolledToAnchor(const Node*)
     68 {
     69 }
     70 
     71 } // namespace WebCore
     72