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/*
* Copyright (C) 2011 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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 LayerTreeContext_h
#define LayerTreeContext_h
namespace CoreIPC {
class ArgumentDecoder;
class ArgumentEncoder;
}
namespace WebKit {
enum LayerHostingMode {
LayerHostingModeDefault,
#if HAVE(LAYER_HOSTING_IN_WINDOW_SERVER)
LayerHostingModeInWindowServer
#endif
};
class LayerTreeContext {
public:
LayerTreeContext();
~LayerTreeContext();
void encode(CoreIPC::ArgumentEncoder*) const;
static bool decode(CoreIPC::ArgumentDecoder*, LayerTreeContext&);
bool isEmpty() const;
#if PLATFORM(MAC)
uint32_t contextID;
#elif PLATFORM(WIN)
HWND window;
#elif PLATFORM(QT)
uint32_t webLayerID;
#endif
};
bool operator==(const LayerTreeContext&, const LayerTreeContext&);
inline bool operator!=(const LayerTreeContext& a, const LayerTreeContext& b)
{
return !(a == b);
}
};
#endif // LayerTreeContext_h
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