Input.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#ifndef _INPUT_H
#define _INPUT_H
 
#include "pedigree/native/compiler.h"
#include "pedigree/native/types.h"
 
namespace Input {
const int Key = 1;
const int Mouse = 2;
const int Joystick = 4;
const int RawKey = 8;
const int AbsoluteMouse = 32;
const int Unknown = 255;
 
typedef int CallbackType;
 
struct EXPORTED_PUBLIC InputNotification {
  CallbackType type;
  // Keep the userspace view aligned with the kernel event payload.
  // Event-stream reads clear this reserved metadata slot.
  void* meta;
 
  union {
    struct {
      uint64_t key;
    } key;
    struct {
      ssize_t relx;
      ssize_t rely;
      ssize_t relz;
 
      bool buttons[64];
    } pointy;
    struct {
      uint32_t x;
      uint32_t y;
      ssize_t wheel;
 
      bool buttons[64];
    } absolute;
    struct {
      uint8_t scancode;
 
      bool keyUp;
    } rawkey;
  } data;
};
 
EXPORTED_PUBLIC int openEventStream();
 
EXPORTED_PUBLIC ssize_t readEvent(int fd, InputNotification& notification);
 
EXPORTED_PUBLIC void inhibitEvents();
 
EXPORTED_PUBLIC void uninhibitEvents();
 
EXPORTED_PUBLIC void loadKeymapFromFile(const char* path);
};  // namespace Input
 
#endif