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/*
* Copyright (C) 2011 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.
*
* 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 "modules/accessibility/AXSpinButton.h"
#include "SkMatrix44.h"
#include "modules/accessibility/AXObjectCacheImpl.h"
namespace blink {
AXSpinButton* AXSpinButton::create(AXObjectCacheImpl& axObjectCache) {
return new AXSpinButton(axObjectCache);
}
AXSpinButton::AXSpinButton(AXObjectCacheImpl& axObjectCache)
: AXMockObject(axObjectCache), m_spinButtonElement(nullptr) {}
AXSpinButton::~AXSpinButton() {
ASSERT(!m_spinButtonElement);
}
DEFINE_TRACE(AXSpinButton) {
visitor->trace(m_spinButtonElement);
AXMockObject::trace(visitor);
}
LayoutObject* AXSpinButton::layoutObjectForRelativeBounds() const {
if (!m_spinButtonElement || !m_spinButtonElement->layoutObject())
return nullptr;
return m_spinButtonElement->layoutObject();
}
void AXSpinButton::detach() {
AXObject::detach();
m_spinButtonElement = nullptr;
}
void AXSpinButton::detachFromParent() {
AXObject::detachFromParent();
m_spinButtonElement = nullptr;
}
AccessibilityRole AXSpinButton::roleValue() const {
return m_spinButtonElement ? SpinButtonRole : UnknownRole;
}
void AXSpinButton::addChildren() {
ASSERT(!isDetached());
m_haveChildren = true;
AXSpinButtonPart* incrementor =
toAXSpinButtonPart(axObjectCache().getOrCreate(SpinButtonPartRole));
incrementor->setIsIncrementor(true);
incrementor->setParent(this);
m_children.push_back(incrementor);
AXSpinButtonPart* decrementor =
toAXSpinButtonPart(axObjectCache().getOrCreate(SpinButtonPartRole));
decrementor->setIsIncrementor(false);
decrementor->setParent(this);
m_children.push_back(decrementor);
}
void AXSpinButton::step(int amount) {
ASSERT(m_spinButtonElement);
if (!m_spinButtonElement)
return;
m_spinButtonElement->step(amount);
}
// AXSpinButtonPart
AXSpinButtonPart::AXSpinButtonPart(AXObjectCacheImpl& axObjectCache)
: AXMockObject(axObjectCache), m_isIncrementor(false) {}
AXSpinButtonPart* AXSpinButtonPart::create(AXObjectCacheImpl& axObjectCache) {
return new AXSpinButtonPart(axObjectCache);
}
void AXSpinButtonPart::getRelativeBounds(
AXObject** outContainer,
FloatRect& outBoundsInContainer,
SkMatrix44& outContainerTransform) const {
*outContainer = nullptr;
outBoundsInContainer = FloatRect();
outContainerTransform.setIdentity();
if (!parentObject())
return;
// FIXME: This logic should exist in the layout tree or elsewhere, but there
// is no relationship that exists that can be queried.
parentObject()->getRelativeBounds(outContainer, outBoundsInContainer,
outContainerTransform);
outBoundsInContainer = FloatRect(0, 0, outBoundsInContainer.width(),
outBoundsInContainer.height());
if (m_isIncrementor) {
outBoundsInContainer.setHeight(outBoundsInContainer.height() / 2);
} else {
outBoundsInContainer.setY(outBoundsInContainer.y() +
outBoundsInContainer.height() / 2);
outBoundsInContainer.setHeight(outBoundsInContainer.height() / 2);
}
*outContainer = parentObject();
}
bool AXSpinButtonPart::press() const {
if (!m_parent || !m_parent->isSpinButton())
return false;
AXSpinButton* spinButton = toAXSpinButton(parentObject());
if (m_isIncrementor)
spinButton->step(1);
else
spinButton->step(-1);
return true;
}
} // namespace blink
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