blob: e9c6e7ef9db6480008ab8b1c22b9d325d5e7f130 [file] [log] [blame]
/*
* Copyright (C) 2015 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 INC. ``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 INC. OR
* 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 "HTMLPictureElement.h"
#include "ElementChildIterator.h"
#include "HTMLAnchorElement.h"
#include "HTMLImageElement.h"
#include "Logging.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLPictureElement);
HTMLPictureElement::HTMLPictureElement(const QualifiedName& tagName, Document& document)
: HTMLElement(tagName, document)
{
}
HTMLPictureElement::~HTMLPictureElement()
{
document().removeViewportDependentPicture(*this);
}
void HTMLPictureElement::didMoveToNewDocument(Document& oldDocument, Document& newDocument)
{
oldDocument.removeViewportDependentPicture(*this);
HTMLElement::didMoveToNewDocument(oldDocument, newDocument);
sourcesChanged();
}
Ref<HTMLPictureElement> HTMLPictureElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new HTMLPictureElement(tagName, document));
}
void HTMLPictureElement::sourcesChanged()
{
for (auto& element : childrenOfType<HTMLImageElement>(*this))
element.selectImageSource();
}
bool HTMLPictureElement::viewportChangeAffectedPicture() const
{
auto documentElement = makeRefPtr(document().documentElement());
MediaQueryEvaluator evaluator { document().printing() ? "print" : "screen", document(), documentElement ? documentElement->computedStyle() : nullptr };
for (auto& result : m_viewportDependentMediaQueryResults) {
LOG(MediaQueries, "HTMLPictureElement %p viewportChangeAffectedPicture evaluating media queries", this);
if (evaluator.evaluate(result.expression) != result.result)
return true;
}
return false;
}
#if USE(SYSTEM_PREVIEW)
bool HTMLPictureElement::isSystemPreviewImage() const
{
const auto* parent = parentElement();
if (!is<HTMLAnchorElement>(parent))
return false;
return downcast<HTMLAnchorElement>(parent)->isSystemPreviewLink();
}
#endif
}