1 /* 2 * Copyright (C) 2008 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 * 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 #ifndef CSSCanvasValue_h 27 #define CSSCanvasValue_h 28 29 #include "CSSImageGeneratorValue.h" 30 #include "HTMLCanvasElement.h" 31 32 namespace WebCore { 33 34 class Document; 35 36 class CSSCanvasValue : public CSSImageGeneratorValue, private CanvasObserver { 37 public: 38 static PassRefPtr<CSSCanvasValue> create() { return adoptRef(new CSSCanvasValue); } 39 virtual ~CSSCanvasValue(); 40 41 virtual String cssText() const; 42 43 virtual Image* image(RenderObject*, const IntSize&); 44 virtual bool isFixedSize() const { return true; } 45 virtual IntSize fixedSize(const RenderObject*); 46 47 void setName(const String& name) { m_name = name; } 48 49 private: 50 CSSCanvasValue() 51 : m_element(0) 52 { 53 } 54 55 virtual void canvasChanged(HTMLCanvasElement*, const FloatRect& changedRect); 56 virtual void canvasResized(HTMLCanvasElement*); 57 virtual void canvasDestroyed(HTMLCanvasElement*); 58 59 HTMLCanvasElement* element(Document*); 60 61 // The name of the canvas. 62 String m_name; 63 // The document supplies the element and owns it. 64 HTMLCanvasElement* m_element; 65 }; 66 67 } // namespace WebCore 68 69 #endif // CSSCanvasValue_h 70
