blob: 53044134b6c7325c1231ef20a6fec2f890a5b509 [file] [log] [blame]
// 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.
#include "base/memory/weak_ptr.h"
namespace exo {
class Gamepad;
class Surface;
// Handles events on multiple gamepad
class GamepadDelegate {
// Gives the delegate a chance to clean up when the Gamepad instance is
// destroyed.
virtual void OnGamepadDestroying(Gamepad* gamepad) = 0;
// This should return true if |surface| is a valid target for this gamepad.
// E.g. the surface is owned by the same client as the gamepad.
virtual bool CanAcceptGamepadEventsForSurface(Surface* surface) const = 0;
// Called when the state of the gamepad has changed.
virtual void OnStateChange(bool connected) = 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;
virtual ~GamepadDelegate() {}
} // namespace exo