public/platform/WebLayerClient.h

/*
 * Copyright (C) 2013 Google 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
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 */

#ifndef WebLayerClient_h
#define WebLayerClient_h

#include "WebCommon.h"

namespace blink {

class WebGraphicsLayerDebugInfo;

class BLINK_PLATFORM_EXPORT WebLayerClient {
public:
    // Returns a pointer to a debug info object, if one has been computed.
    // If not, returns 0. If the returned pointer is non-zero, the caller takes
    // ownership of the pointer. The parameter allows us to return WebLayer-
    // specific information, too (only the debug name for now).
    virtual WebGraphicsLayerDebugInfo* takeDebugInfoFor(WebLayer*) = 0;

protected:
    virtual ~WebLayerClient() { }
};

} // namespace blink

#endif // WebLayerClient_h