path: root/hw/xnest/Keyboard.c

/*

Copyright 1993 by Davor Matic

Permission to use, copy, modify, distribute, and sell this software
and its documentation for any purpose is hereby granted without fee,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation.  Davor Matic makes no representations about
the suitability of this software for any purpose.  It is provided "as
is" without express or implied warranty.

*/

#ifdef HAVE_XNEST_CONFIG_H
#include <xnest-config.h>
#endif

#include <X11/X.h>
#include <X11/Xproto.h>
#include <X11/keysym.h>
#include "screenint.h"
#include "inputstr.h"
#include "misc.h"
#include "scrnintstr.h"
#include "servermd.h"

#include "Xnest.h"

#include "Display.h"
#include "Screen.h"
#include "Keyboard.h"
#include "Args.h"
#include "Events.h"

#include <X11/extensions/XKB.h>
#include "xkbsrv.h"
#include <X11/extensions/XKBconfig.h>

extern Bool
XkbQueryExtension(
	Display *		/* dpy */,
	int *			/* opcodeReturn */,
	int *			/* eventBaseReturn */,
	int *			/* errorBaseReturn */,
	int *			/* majorRtrn */,
	int *			/* minorRtrn */
);

extern	XkbDescPtr XkbGetKeyboard(
	Display *		/* dpy */,
	unsigned int		/* which */,
	unsigned int		/* deviceSpec */
);

extern	Status	XkbGetControls(
	Display *		/* dpy */,
	unsigned long		/* which */,
	XkbDescPtr		/* desc */
);

DeviceIntPtr xnestKeyboardDevice = NULL;

void
xnestBell(int volume, DeviceIntPtr pDev, pointer ctrl, int cls)
{
  XBell(xnestDisplay, volume);
}

void
DDXRingBell(int volume, int pitch, int duration)
{
  XBell(xnestDisplay, volume);
}

void
xnestChangeKeyboardControl(DeviceIntPtr pDev, KeybdCtrl *ctrl)
{
#if 0
  unsigned long value_mask;
  XKeyboardControl values;
  int i;

  value_mask = KBKeyClickPercent |
               KBBellPercent |
	       KBBellPitch |
	       KBBellDuration |
	       KBAutoRepeatMode;

  values.key_click_percent = ctrl->click;
  values.bell_percent = ctrl->bell;
  values.bell_pitch = ctrl->bell_pitch;
  values.bell_duration = ctrl->bell_duration;
  values.auto_repeat_mode = ctrl->autoRepeat ? 
                             AutoRepeatModeOn : AutoRepeatModeOff;

  XChangeKeyboardControl(xnestDisplay, value_mask, &values);

  /*
  value_mask = KBKey | KBAutoRepeatMode;
  At this point, we need to walk through the vector and compare it
  to the current server vector.  If there are differences, report them.
  */

  value_mask = KBLed | KBLedMode;
  for (i = 1; i <= 32; i++) {
    values.led = i;
    values.led_mode = (ctrl->leds & (1 << (i - 1))) ? LedModeOn : LedModeOff;
    XChangeKeyboardControl(xnestDisplay, value_mask, &values);
  }
#endif
}

int
xnestKeyboardProc(DeviceIntPtr pDev, int onoff)
{
  KeySym *keymap;
  int mapWidth;
  int min_keycode, max_keycode;
  KeySymsRec keySyms;
  int i;
  XKeyboardState values;
  XkbComponentNamesRec names;
  XkbDescPtr xkb;
  XkbRMLVOSet rmlvo;
  int op, event, error, major, minor;

  switch (onoff)
    {
    case DEVICE_INIT: 
      XDisplayKeycodes(xnestDisplay, &min_keycode, &max_keycode);
#ifdef _XSERVER64
      {
	KeySym64 *keymap64;
	int i, len;
	keymap64 = XGetKeyboardMapping(xnestDisplay,
				     min_keycode,
				     max_keycode - min_keycode + 1,
				     &mapWidth);
	len = (max_keycode - min_keycode + 1) * mapWidth;
	keymap = (KeySym *)xalloc(len * sizeof(KeySym));
	for(i = 0; i < len; ++i)
	  keymap[i] = keymap64[i];
	XFree(keymap64);
      }
#else
      keymap = XGetKeyboardMapping(xnestDisplay, 
				   min_keycode,
				   max_keycode - min_keycode + 1,
				   &mapWidth);
#endif
      
      keySyms.minKeyCode = min_keycode;
      keySyms.maxKeyCode = max_keycode;
      keySyms.mapWidth = mapWidth;
      keySyms.map = keymap;

      if (XkbQueryExtension(xnestDisplay, &op, &event, &error, &major, &minor) == 0) {
          ErrorF("Unable to initialize XKEYBOARD extension.\n");
	  goto XkbError;
      }
      xkb = XkbGetKeyboard(xnestDisplay, XkbGBN_AllComponentsMask, XkbUseCoreKbd);
      if (xkb == NULL || xkb->geom == NULL) {
	  ErrorF("Couldn't get keyboard.\n");
          goto XkbError;
      }
      XkbGetControls(xnestDisplay, XkbAllControlsMask, xkb);

      memset(&names, 0, sizeof(XkbComponentNamesRec));
      rmlvo.rules = XKB_DFLT_RULES;
      rmlvo.model = XKB_DFLT_MODEL;
      rmlvo.layout = XKB_DFLT_LAYOUT;
      rmlvo.variant = XKB_DFLT_VARIANT;
      rmlvo.options = XKB_DFLT_OPTIONS;

      InitKeyboardDeviceStruct(pDev, &rmlvo,
			       xnestBell, xnestChangeKeyboardControl);
      XkbDDXChangeControls(pDev, xkb->ctrls, xkb->ctrls);
      XkbFreeKeyboard(xkb, 0, False);
      xfree(keymap);
      break;
    case DEVICE_ON: 
      xnestEventMask |= XNEST_KEYBOARD_EVENT_MASK;
      for (i = 0; i < xnestNumScreens; i++)
	XSelectInput(xnestDisplay, xnestDefaultWindows[i], xnestEventMask);
      break;
    case DEVICE_OFF: 
      xnestEventMask &= ~XNEST_KEYBOARD_EVENT_MASK;
      for (i = 0; i < xnestNumScreens; i++)
	XSelectInput(xnestDisplay, xnestDefaultWindows[i], xnestEventMask);
      break;
    case DEVICE_CLOSE: 
      break;
    }
  return Success;

XkbError:
  XGetKeyboardControl(xnestDisplay, &values);
  memmove((char *)defaultKeyboardControl.autoRepeats,
          (char *)values.auto_repeats,
          sizeof(values.auto_repeats));

  InitKeyboardDeviceStruct(&pDev->public, &keySyms,
                           xnestBell, xnestChangeKeyboardControl);
  xfree(keymap);
  return Success;
}

Bool
LegalModifier(unsigned int key, DeviceIntPtr pDev)
{
  return TRUE;
}

void
xnestUpdateModifierState(unsigned int state)
{
#if 0
  DeviceIntPtr pDev = xnestKeyboardDevice;
  KeyClassPtr keyc = pDev->key;
  int i;
  CARD8 mask;

  if (!pDev)
      return;

/* This is pretty broken.
 *
 * What should happen is that focus out should do as a VT switch does in
 * traditional servers: fake releases for all keys (and buttons too, come
 * to think of it) currently down.  Then, on focus in, get the state from
 * the host, and fake keypresses for everything currently down.
 *
 * So I'm leaving this broken for a little while.  Sorry, folks.
 *
 * -daniels
 */
  state = state & 0xff;

  if (keyc->state == state)
    return;

  for (i = 0, mask = 1; i < 8; i++, mask <<= 1) {
    int key;

    /* Modifier is down, but shouldn't be
     */
    if ((keyc->state & mask) && !(state & mask)) {
      int count = keyc->modifierKeyCount[i];

      for (key = 0; key < MAP_LENGTH; key++)
	if (keyc->xkbInfo->desc->map->modmap[key] & mask) {
	  int bit;
	  BYTE *kptr;

	  kptr = &keyc->down[key >> 3];
	  bit = 1 << (key & 7);

	  if (*kptr & bit)
	    xnestQueueKeyEvent(KeyRelease, key);

	  if (--count == 0)
	    break;
	}
    }

    /* Modifier shoud be down, but isn't
     */
    if (!(keyc->state & mask) && (state & mask))
      for (key = 0; key < MAP_LENGTH; key++)
	if (keyc->xkbInfo->desc->map->modmap[key] & mask) {
	  xnestQueueKeyEvent(KeyPress, key);
	  break;
	}
  }
#endif
}