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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_EXO_GAMEPAD_DELEGATE_H_
#define COMPONENTS_EXO_GAMEPAD_DELEGATE_H_
namespace exo {
// Handles events for a specific gamepad.
class GamepadDelegate {
public:
// Called when the gamepad has been removed.
virtual void OnRemoved() = 0;
// Called when the user moved an axis of the gamepad. Valid axes are defined
// by the W3C 'standard gamepad' specification.
virtual void OnAxis(int axis, double value) = 0;
// Called when the user pressed or moved a button of the gamepad.
// Valid buttons are defined by the W3C 'standard gamepad' specification.
virtual void OnButton(int button, bool pressed, double value) = 0;
// Called after all gamepad information of this frame has been set and the
// client should evaluate the updated state.
virtual void OnFrame() = 0;
protected:
virtual ~GamepadDelegate() {}
};
} // namespace exo
#endif // COMPONENTS_EXO_GAMEPAD_DELEGATE_H_
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