1/*
2 * Copyright (C) 2006, 2007, 2008, 2009, 2014 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 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
20 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#pragma once
26
27#include "HTMLDocument.h"
28
29namespace WebCore {
30
31class ImageDocumentElement;
32class HTMLImageElement;
33
34class ImageDocument final : public HTMLDocument {
35 WTF_MAKE_ISO_ALLOCATED(ImageDocument);
36public:
37 static Ref<ImageDocument> create(Frame& frame, const URL& url)
38 {
39 return adoptRef(*new ImageDocument(frame, url));
40 }
41
42 WEBCORE_EXPORT HTMLImageElement* imageElement() const;
43
44 void updateDuringParsing();
45 void finishedParsing();
46
47 void disconnectImageElement() { m_imageElement = nullptr; }
48
49#if !PLATFORM(IOS_FAMILY)
50 void windowSizeChanged();
51 void imageClicked(int x, int y);
52#endif
53
54private:
55 ImageDocument(Frame&, const URL&);
56
57 Ref<DocumentParser> createParser() override;
58
59 LayoutSize imageSize();
60
61 void createDocumentStructure();
62#if !PLATFORM(IOS_FAMILY)
63 void resizeImageToFit();
64 void restoreImageSize();
65 bool imageFitsInWindow();
66 float scale();
67#endif
68
69 void imageUpdated();
70
71 ImageDocumentElement* m_imageElement;
72
73 // Whether enough of the image has been loaded to determine its size.
74 bool m_imageSizeIsKnown;
75
76#if !PLATFORM(IOS_FAMILY)
77 // Whether the image is shrunk to fit or not.
78 bool m_didShrinkImage;
79#endif
80
81 // Whether the image should be shrunk or not.
82 bool m_shouldShrinkImage;
83};
84
85} // namespace WebCore
86
87SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::ImageDocument)
88 static bool isType(const WebCore::Document& document) { return document.isImageDocument(); }
89 static bool isType(const WebCore::Node& node) { return is<WebCore::Document>(node) && isType(downcast<WebCore::Document>(node)); }
90SPECIALIZE_TYPE_TRAITS_END()
91