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 "core/html/HTMLDocument.h" 29#include "wtf/RefPtr.h" 30 31namespace blink { 32 33class ImageResource; 34class HTMLImageElement; 35 36class ImageDocument FINAL : public HTMLDocument { 37public: 38 static PassRefPtrWillBeRawPtr<ImageDocument> create(const DocumentInit& initializer = DocumentInit()) 39 { 40 return adoptRefWillBeNoop(new ImageDocument(initializer)); 41 } 42 43 enum ScaleType { 44 ScaleZoomedDocument, 45 ScaleOnlyUnzoomedDocument 46 }; 47 48 ImageResource* cachedImage(); 49 HTMLImageElement* imageElement() const { return m_imageElement.get(); } 50 51 void windowSizeChanged(ScaleType); 52 void imageUpdated(); 53 void imageClicked(int x, int y); 54 55 virtual void trace(Visitor*) OVERRIDE; 56 57private: 58 explicit ImageDocument(const DocumentInit&); 59 60 virtual PassRefPtrWillBeRawPtr<DocumentParser> createParser() OVERRIDE; 61#if !ENABLE(OILPAN) 62 virtual void dispose() OVERRIDE; 63#endif 64 65 void createDocumentStructure(); 66 void resizeImageToFit(ScaleType); 67 void restoreImageSize(ScaleType); 68 bool imageFitsInWindow() const; 69 bool shouldShrinkToFit() const; 70 float scale() const; 71 72 RefPtrWillBeMember<HTMLImageElement> m_imageElement; 73 74 // Whether enough of the image has been loaded to determine its size 75 bool m_imageSizeIsKnown; 76 77 // Whether the image is shrunk to fit or not 78 bool m_didShrinkImage; 79 80 // Whether the image should be shrunk or not 81 bool m_shouldShrinkImage; 82}; 83 84DEFINE_DOCUMENT_TYPE_CASTS(ImageDocument); 85 86} 87 88#endif // ImageDocument_h 89