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/*
* Copyright (C) 2011 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:
*
* 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 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 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 WebCompositorInputHandlerClient_h
#define WebCompositorInputHandlerClient_h
namespace WebKit {
struct WebActiveWheelFlingParameters;
class WebCompositorInputHandlerClient {
public:
// Callbacks invoked from the compositor thread.
virtual void willShutdown() = 0;
// Exactly one of the following two callbacks will be invoked after every call to WebCompositorInputHandler::handleInputEvent():
// Called when the WebCompositorInputHandler handled the input event and no further processing is required.
virtual void didHandleInputEvent() = 0;
// Called when the WebCompositorInputHandler did not handle the input event. If sendToWidget is true, the input event
// should be forwarded to the WebWidget associated with this compositor for further processing.
virtual void didNotHandleInputEvent(bool sendToWidget) = 0;
// Transfers an active wheel fling animation initiated by a previously handled input event out to the client.
// FIXME: Make pure virtual once implementation lands on Chromium side.
virtual void transferActiveWheelFlingAnimation(const WebActiveWheelFlingParameters&) { }
protected:
virtual ~WebCompositorInputHandlerClient() { }
};
} // namespace WebKit
#endif
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