blob: 0a739896d76580f0fcdacdf64672131949032417 [file] [log] [blame]
// Copyright 2017 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 <memory>
#include "ui/events/ozone/gamepad/webgamepad_constants.h"
namespace ui {
class EventDeviceInfo;
// The following HATX and HATY is not part of web gamepad definition, but we
// need to specially treat them cause HAT_Y can be mapped to DPAD_UP or
// DPAD_DOWN, and HAT_X can be mapped to DAPD_LEFT or DPAD_RIGHT.
constexpr int kHAT_X = 4;
constexpr int kHAT_Y = 5;
// KeyMap maps evdev key code to web gamepad code.
struct KeyMapEntry {
uint16_t evdev_code;
uint16_t mapped_code;
// AbsMap maps evdev abs code to web gamepad (type, code).
struct AbsMapEntry {
uint16_t evdev_code;
GamepadEventType mapped_type;
uint16_t mapped_code;
using KeyMapType = const KeyMapEntry[];
using AbsMapType = const AbsMapEntry[];
#define TO_BTN(code, mapped_code) \
{ code, GamepadEventType::BUTTON, mapped_code }
#define TO_ABS(code, mapped_code) \
{ code, GamepadEventType::AXIS, mapped_code }
class GamepadMapper {
virtual bool Map(uint16_t key,
uint16_t code,
GamepadEventType* mapped_type,
uint16_t* mapped_code) const = 0;
virtual ~GamepadMapper() {}
// This function gets the best mapper for the gamepad vendor_id and product_id.
std::unique_ptr<GamepadMapper> GetGamepadMapper(const EventDeviceInfo& devinfo);
} // namespace ui