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      1 /*
      2  * Copyright (C) 2010 Apple Inc. All Rights Reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "AccessibilityMenuList.h"
     28 
     29 #include "AXObjectCache.h"
     30 #include "AccessibilityMenuListPopup.h"
     31 #include "RenderMenuList.h"
     32 
     33 namespace WebCore {
     34 
     35 AccessibilityMenuList::AccessibilityMenuList(RenderObject* renderer)
     36     : AccessibilityRenderObject(renderer)
     37 {
     38     ASSERT_ARG(renderer, renderer->isMenuList());
     39 }
     40 
     41 bool AccessibilityMenuList::press() const
     42 {
     43     RenderMenuList* menuList = static_cast<RenderMenuList*>(m_renderer);
     44     if (menuList->popupIsVisible())
     45         menuList->hidePopup();
     46     else
     47         menuList->showPopup();
     48     return true;
     49 }
     50 
     51 void AccessibilityMenuList::addChildren()
     52 {
     53     m_haveChildren = true;
     54 
     55     AXObjectCache* cache = m_renderer->document()->axObjectCache();
     56 
     57     AccessibilityObject* list = cache->getOrCreate(MenuListPopupRole);
     58     if (!list)
     59         return;
     60 
     61     if (list->accessibilityPlatformIncludesObject() == IgnoreObject) {
     62         cache->remove(list->axObjectID());
     63         return;
     64     }
     65 
     66     static_cast<AccessibilityMenuListPopup*>(list)->setMenuList(this);
     67     m_children.append(list);
     68 
     69     list->addChildren();
     70 }
     71 
     72 void AccessibilityMenuList::childrenChanged()
     73 {
     74     if (m_children.isEmpty())
     75         return;
     76 
     77     ASSERT(m_children.size() == 1);
     78     m_children[0]->childrenChanged();
     79 }
     80 
     81 bool AccessibilityMenuList::isCollapsed() const
     82 {
     83     return !static_cast<RenderMenuList*>(m_renderer)->popupIsVisible();
     84 }
     85 
     86 } // namespace WebCore
     87