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Diffstat (limited to 'Source/WebCore/accessibility/AccessibilityListBoxOption.cpp')
| -rw-r--r-- | Source/WebCore/accessibility/AccessibilityListBoxOption.cpp | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/Source/WebCore/accessibility/AccessibilityListBoxOption.cpp b/Source/WebCore/accessibility/AccessibilityListBoxOption.cpp new file mode 100644 index 0000000..01420c5 --- /dev/null +++ b/Source/WebCore/accessibility/AccessibilityListBoxOption.cpp @@ -0,0 +1,219 @@ +/* + * Copyright (C) 2008 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of + * its contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "AccessibilityListBoxOption.h" + +#include "AXObjectCache.h" +#include "AccessibilityListBox.h" +#include "Element.h" +#include "HTMLElement.h" +#include "HTMLNames.h" +#include "HTMLOptGroupElement.h" +#include "HTMLOptionElement.h" +#include "HTMLSelectElement.h" +#include "IntRect.h" +#include "RenderListBox.h" +#include "RenderObject.h" + +using namespace std; + +namespace WebCore { + +using namespace HTMLNames; + +AccessibilityListBoxOption::AccessibilityListBoxOption() + : m_optionElement(0) +{ +} + +AccessibilityListBoxOption::~AccessibilityListBoxOption() +{ +} + +PassRefPtr<AccessibilityListBoxOption> AccessibilityListBoxOption::create() +{ + return adoptRef(new AccessibilityListBoxOption()); +} + +bool AccessibilityListBoxOption::isEnabled() const +{ + if (!m_optionElement) + return false; + + if (m_optionElement->hasTagName(optgroupTag)) + return false; + + return true; +} + +bool AccessibilityListBoxOption::isSelected() const +{ + if (!m_optionElement) + return false; + + if (!m_optionElement->hasTagName(optionTag)) + return false; + + return static_cast<HTMLOptionElement*>(m_optionElement)->selected(); +} + +IntRect AccessibilityListBoxOption::elementRect() const +{ + IntRect rect; + if (!m_optionElement) + return rect; + + HTMLSelectElement* listBoxParentNode = listBoxOptionParentNode(); + if (!listBoxParentNode) + return rect; + + RenderObject* listBoxRenderer = listBoxParentNode->renderer(); + if (!listBoxRenderer) + return rect; + + IntRect parentRect = listBoxRenderer->document()->axObjectCache()->getOrCreate(listBoxRenderer)->boundingBoxRect(); + int index = listBoxOptionIndex(); + if (index != -1) + rect = toRenderListBox(listBoxRenderer)->itemBoundingBoxRect(parentRect.x(), parentRect.y(), index); + + return rect; +} + +bool AccessibilityListBoxOption::accessibilityIsIgnored() const +{ + if (!m_optionElement) + return true; + + if (equalIgnoringCase(getAttribute(aria_hiddenAttr), "true")) + return true; + + return parentObject()->accessibilityIsIgnored(); +} + +bool AccessibilityListBoxOption::canSetSelectedAttribute() const +{ + if (!m_optionElement) + return false; + + if (!m_optionElement->hasTagName(optionTag)) + return false; + + if (m_optionElement->disabled()) + return false; + + HTMLSelectElement* selectElement = listBoxOptionParentNode(); + if (selectElement && selectElement->disabled()) + return false; + + return true; +} + +String AccessibilityListBoxOption::stringValue() const +{ + if (!m_optionElement) + return String(); + + const AtomicString& ariaLabel = getAttribute(aria_labelAttr); + if (!ariaLabel.isNull()) + return ariaLabel; + + if (m_optionElement->hasTagName(optionTag)) + return static_cast<HTMLOptionElement*>(m_optionElement)->text(); + + if (m_optionElement->hasTagName(optgroupTag)) + return static_cast<HTMLOptGroupElement*>(m_optionElement)->groupLabelText(); + + return String(); +} + +Element* AccessibilityListBoxOption::actionElement() const +{ + return m_optionElement; +} + +AccessibilityObject* AccessibilityListBoxOption::parentObject() const +{ + HTMLSelectElement* parentNode = listBoxOptionParentNode(); + if (!parentNode) + return 0; + + return m_optionElement->document()->axObjectCache()->getOrCreate(parentNode->renderer()); +} + +void AccessibilityListBoxOption::setSelected(bool selected) +{ + HTMLSelectElement* selectElement = listBoxOptionParentNode(); + if (!selectElement) + return; + + if (!canSetSelectedAttribute()) + return; + + bool isOptionSelected = isSelected(); + if ((isOptionSelected && selected) || (!isOptionSelected && !selected)) + return; + + // Convert from the entire list index to the option index. + int optionIndex = static_cast<SelectElement*>(selectElement)->listToOptionIndex(listBoxOptionIndex()); + selectElement->accessKeySetSelectedIndex(optionIndex); +} + +HTMLSelectElement* AccessibilityListBoxOption::listBoxOptionParentNode() const +{ + if (!m_optionElement) + return 0; + + if (m_optionElement->hasTagName(optionTag)) + return static_cast<HTMLOptionElement*>(m_optionElement)->ownerSelectElement(); + + if (m_optionElement->hasTagName(optgroupTag)) + return static_cast<HTMLOptGroupElement*>(m_optionElement)->ownerSelectElement(); + + return 0; +} + +int AccessibilityListBoxOption::listBoxOptionIndex() const +{ + if (!m_optionElement) + return -1; + + HTMLSelectElement* selectElement = listBoxOptionParentNode(); + if (!selectElement) + return -1; + + const Vector<Element*>& listItems = selectElement->listItems(); + unsigned length = listItems.size(); + for (unsigned i = 0; i < length; i++) + if (listItems[i] == m_optionElement) + return i; + + return -1; +} + +} // namespace WebCore |