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/*
* Copyright (C) 2012 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 RemoteLayerTreeTransaction_h
#define RemoteLayerTreeTransaction_h
#include <WebCore/FloatPoint.h>
#include <WebCore/FloatSize.h>
#include <wtf/HashMap.h>
#include <wtf/text/WTFString.h>
namespace CoreIPC {
class ArgumentDecoder;
class ArgumentEncoder;
}
namespace WebKit {
class RemoteGraphicsLayer;
class RemoteLayerTreeTransaction {
public:
enum LayerChange {
NoChange = 0,
NameChanged = 1 << 1,
ChildrenChanged = 1 << 2,
PositionChanged = 1 << 3,
SizeChanged = 1 << 4,
};
struct LayerProperties {
LayerProperties();
void encode(CoreIPC::ArgumentEncoder&) const;
static bool decode(CoreIPC::ArgumentDecoder&, LayerProperties&);
unsigned changedProperties;
String name;
Vector<uint64_t> children;
WebCore::FloatPoint position;
WebCore::FloatSize size;
};
explicit RemoteLayerTreeTransaction();
~RemoteLayerTreeTransaction();
void encode(CoreIPC::ArgumentEncoder&) const;
static bool decode(CoreIPC::ArgumentDecoder&, RemoteLayerTreeTransaction&);
uint64_t rootLayerID() const { return m_rootLayerID; }
void setRootLayerID(uint64_t rootLayerID);
void layerPropertiesChanged(const RemoteGraphicsLayer*, unsigned changedProperties);
void setDestroyedLayerIDs(Vector<uint64_t>);
#ifndef NDEBUG
void dump() const;
#endif
private:
uint64_t m_rootLayerID;
HashMap<uint64_t, LayerProperties> m_changedLayerProperties;
Vector<uint64_t> m_destroyedLayerIDs;
};
} // namespace WebKit
#endif // RemoteLayerTreeTransaction_h
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