1/* 2 * Copyright (C) 2006, 2007, 2008, 2009 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 COMPUTER, 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 COMPUTER, 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#ifndef ImageDocument_h 26#define ImageDocument_h 27 28#include "HTMLDocument.h" 29 30namespace WebCore { 31 32class CachedImage; 33class ImageDocumentElement; 34 35class ImageDocument FINAL : public HTMLDocument { 36public: 37 static PassRefPtr<ImageDocument> create(Frame* frame, const KURL& url) 38 { 39 return adoptRef(new ImageDocument(frame, url)); 40 } 41 42 CachedImage* cachedImage(); 43 ImageDocumentElement* imageElement() const { return m_imageElement; } 44 void disconnectImageElement() { m_imageElement = 0; } 45 46 void windowSizeChanged(); 47 void imageUpdated(); 48 void imageClicked(int x, int y); 49 50private: 51 ImageDocument(Frame*, const KURL&); 52 53 virtual PassRefPtr<DocumentParser> createParser(); 54 55 void createDocumentStructure(); 56 void resizeImageToFit(); 57 void restoreImageSize(); 58 bool imageFitsInWindow() const; 59 bool shouldShrinkToFit() const; 60 float scale() const; 61 62 ImageDocumentElement* m_imageElement; 63 64 // Whether enough of the image has been loaded to determine its size 65 bool m_imageSizeIsKnown; 66 67 // Whether the image is shrunk to fit or not 68 bool m_didShrinkImage; 69 70 // Whether the image should be shrunk or not 71 bool m_shouldShrinkImage; 72}; 73 74inline ImageDocument* toImageDocument(Document* document) 75{ 76 ASSERT_WITH_SECURITY_IMPLICATION(!document || document->isImageDocument()); 77 return static_cast<ImageDocument*>(document); 78} 79 80inline const ImageDocument* toImageDocument(const Document* document) 81{ 82 ASSERT_WITH_SECURITY_IMPLICATION(!document || document->isImageDocument()); 83 return static_cast<const ImageDocument*>(document); 84} 85 86// This will catch anyone doing an unnecessary cast. 87void toImageDocument(const ImageDocument*); 88 89} 90 91#endif // ImageDocument_h 92