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author | Steve Block <steveblock@google.com> | 2011-05-06 11:45:16 +0100 |
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committer | Steve Block <steveblock@google.com> | 2011-05-12 13:44:10 +0100 |
commit | cad810f21b803229eb11403f9209855525a25d57 (patch) | |
tree | 29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/html/canvas/CanvasRenderingContext.h | |
parent | 121b0cf4517156d0ac5111caf9830c51b69bae8f (diff) | |
download | external_webkit-cad810f21b803229eb11403f9209855525a25d57.zip external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.bz2 |
Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/html/canvas/CanvasRenderingContext.h')
-rw-r--r-- | Source/WebCore/html/canvas/CanvasRenderingContext.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/Source/WebCore/html/canvas/CanvasRenderingContext.h b/Source/WebCore/html/canvas/CanvasRenderingContext.h new file mode 100644 index 0000000..a25e8a1 --- /dev/null +++ b/Source/WebCore/html/canvas/CanvasRenderingContext.h @@ -0,0 +1,80 @@ +/* + * Copyright (C) 2009 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CanvasRenderingContext_h +#define CanvasRenderingContext_h + +#include "GraphicsLayer.h" + +#include <wtf/HashSet.h> +#include <wtf/Noncopyable.h> +#include <wtf/text/StringHash.h> + +namespace WebCore { + +class CanvasPattern; +class HTMLCanvasElement; +class HTMLImageElement; +class HTMLVideoElement; +class KURL; +class WebGLObject; + +class CanvasRenderingContext : public Noncopyable { +public: + CanvasRenderingContext(HTMLCanvasElement*); + virtual ~CanvasRenderingContext() { } + + // Ref and deref the m_canvas + void ref(); + void deref(); + + HTMLCanvasElement* canvas() const { return m_canvas; } + + virtual bool is2d() const { return false; } + virtual bool is3d() const { return false; } + virtual bool isAccelerated() const { return false; } + + virtual void paintRenderingResultsToCanvas() {} + virtual bool paintsIntoCanvasBuffer() const { return true; } + +#if USE(ACCELERATED_COMPOSITING) + virtual PlatformLayer* platformLayer() const { return 0; } +#endif + +protected: + void checkOrigin(const CanvasPattern*); + void checkOrigin(const HTMLCanvasElement*); + void checkOrigin(const HTMLImageElement*); + void checkOrigin(const HTMLVideoElement*); + void checkOrigin(const KURL&); + +private: + HTMLCanvasElement* m_canvas; + HashSet<String> m_cleanOrigins; +}; + +} // namespace WebCore + +#endif |