2 * Copyright (C) 2008 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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
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23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include "CSSCanvasValue.h"
29 #include "ImageBuffer.h"
30 #include "RenderObject.h"
34 CSSCanvasValue::~CSSCanvasValue()
37 m_element->removeObserver(&m_canvasObserver);
40 String CSSCanvasValue::customCssText() const
42 String result = "-webkit-canvas(";
43 result += m_name + ")";
47 void CSSCanvasValue::canvasChanged(HTMLCanvasElement*, const FloatRect& changedRect)
49 IntRect imageChangeRect = enclosingIntRect(changedRect);
50 RenderObjectSizeCountMap::const_iterator end = clients().end();
51 for (RenderObjectSizeCountMap::const_iterator curr = clients().begin(); curr != end; ++curr)
52 const_cast<RenderObject*>(curr->first)->imageChanged(static_cast<WrappedImagePtr>(this), &imageChangeRect);
55 void CSSCanvasValue::canvasResized(HTMLCanvasElement*)
57 RenderObjectSizeCountMap::const_iterator end = clients().end();
58 for (RenderObjectSizeCountMap::const_iterator curr = clients().begin(); curr != end; ++curr)
59 const_cast<RenderObject*>(curr->first)->imageChanged(static_cast<WrappedImagePtr>(this));
62 void CSSCanvasValue::canvasDestroyed(HTMLCanvasElement* element)
64 ASSERT_UNUSED(element, element == m_element);
68 IntSize CSSCanvasValue::fixedSize(const RenderObject* renderer)
70 if (HTMLCanvasElement* elt = element(renderer->document()))
71 return IntSize(elt->width(), elt->height());
75 HTMLCanvasElement* CSSCanvasValue::element(Document* document)
78 m_element = document->getCSSCanvasElement(m_name);
81 m_element->addObserver(&m_canvasObserver);
86 PassRefPtr<Image> CSSCanvasValue::image(RenderObject* renderer, const IntSize& /*size*/)
88 ASSERT(clients().contains(renderer));
89 HTMLCanvasElement* elt = element(renderer->document());
90 if (!elt || !elt->buffer())
92 return elt->copiedImage();
95 } // namespace WebCore