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/*
* Copyright (C) 2021 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 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 "AXImage.h"
#include "AXLogger.h"
#include "Chrome.h"
#include "ChromeClient.h"
#include "DocumentInlines.h"
#include "TextRecognitionOptions.h"
namespace WebCore {
AXImage::AXImage(AXID axID, RenderImage& renderer)
: AccessibilityRenderObject(axID, renderer)
{
}
Ref<AXImage> AXImage::create(AXID axID, RenderImage& renderer)
{
return adoptRef(*new AXImage(axID, renderer));
}
AccessibilityRole AXImage::determineAccessibilityRole()
{
if ((m_ariaRole = determineAriaRoleAttribute()) != AccessibilityRole::Unknown)
return m_ariaRole;
return AccessibilityRole::Image;
}
std::optional<AXCoreObject::AccessibilityChildrenVector> AXImage::imageOverlayElements()
{
AXTRACE("AXImage::imageOverlayElements"_s);
const auto& children = this->unignoredChildren();
if (children.size())
return children;
#if ENABLE(IMAGE_ANALYSIS)
auto* page = this->page();
if (!page)
return std::nullopt;
auto* element = this->element();
if (!element)
return std::nullopt;
page->chrome().client().requestTextRecognition(*element, { }, [] (RefPtr<Element>&& imageOverlayHost) {
if (!imageOverlayHost)
return;
if (CheckedPtr axObjectCache = imageOverlayHost->document().existingAXObjectCache())
axObjectCache->postNotification(imageOverlayHost.get(), AXNotification::ImageOverlayChanged);
});
#endif
return std::nullopt;
}
} // namespace WebCore
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