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 31 namespace WebCore { 32 33 class ImageResource; 34 class HTMLImageElement; 35 36 class ImageDocument FINAL : public HTMLDocument { 37 public: 38 static PassRefPtr<ImageDocument> create(const DocumentInit& initializer = DocumentInit()) 39 { 40 return adoptRef(new ImageDocument(initializer)); 41 } 42 43 ImageResource* cachedImage(); imageElement()44 HTMLImageElement* imageElement() const { return m_imageElement.get(); } 45 46 void windowSizeChanged(); 47 void imageUpdated(); 48 void imageClicked(int x, int y); 49 50 private: 51 ImageDocument(const DocumentInit&); 52 53 virtual PassRefPtr<DocumentParser> createParser() OVERRIDE; 54 virtual void dispose() OVERRIDE; 55 56 void createDocumentStructure(); 57 void resizeImageToFit(); 58 void restoreImageSize(); 59 bool imageFitsInWindow() const; 60 bool shouldShrinkToFit() const; 61 float scale() const; 62 63 RefPtr<HTMLImageElement> m_imageElement; 64 65 // Whether enough of the image has been loaded to determine its size 66 bool m_imageSizeIsKnown; 67 68 // Whether the image is shrunk to fit or not 69 bool m_didShrinkImage; 70 71 // Whether the image should be shrunk or not 72 bool m_shouldShrinkImage; 73 }; 74 75 DEFINE_DOCUMENT_TYPE_CASTS(ImageDocument); 76 77 } 78 79 #endif // ImageDocument_h 80