1/*
2 * Copyright (C) 2015 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#pragma once
27
28#include "HTMLElement.h"
29#include "MediaQueryEvaluator.h"
30
31namespace WebCore {
32
33class HTMLPictureElement final : public HTMLElement {
34 WTF_MAKE_ISO_ALLOCATED(HTMLPictureElement);
35public:
36 static Ref<HTMLPictureElement> create(const QualifiedName&, Document&);
37 virtual ~HTMLPictureElement();
38
39 void sourcesChanged();
40
41 void clearViewportDependentResults() { m_viewportDependentMediaQueryResults.clear(); }
42 bool hasViewportDependentResults() const { return m_viewportDependentMediaQueryResults.size(); }
43 Vector<MediaQueryResult>& viewportDependentResults() { return m_viewportDependentMediaQueryResults; }
44
45 void clearAppearanceDependentResults() { m_appearanceDependentMediaQueryResults.clear(); }
46 bool hasAppearanceDependentResults() const { return m_appearanceDependentMediaQueryResults.size(); }
47 Vector<MediaQueryResult>& appearanceDependentResults() { return m_appearanceDependentMediaQueryResults; }
48
49 bool viewportChangeAffectedPicture() const;
50 bool appearanceChangeAffectedPicture() const;
51
52#if USE(SYSTEM_PREVIEW)
53 WEBCORE_EXPORT bool isSystemPreviewImage() const;
54#endif
55
56private:
57 HTMLPictureElement(const QualifiedName&, Document&);
58
59 void didMoveToNewDocument(Document& oldDocument, Document& newDocument) final;
60
61 Vector<MediaQueryResult> m_viewportDependentMediaQueryResults;
62 Vector<MediaQueryResult> m_appearanceDependentMediaQueryResults;
63};
64
65} // namespace WebCore
66