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/* $Xorg: Keyboard.c,v 1.3 2000/08/17 19:53:28 cpqbld Exp $ */
/*

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.

*/
/* $XFree86: xc/programs/Xserver/hw/xnest/Keyboard.c,v 1.9 2003/09/13 21:33:09 dawes Exp $ */

#define NEED_EVENTS
#include "X.h"
#include "Xproto.h"
#include "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"

#ifdef XKB
#include <X11/extensions/XKB.h>
#include <X11/extensions/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 */
);

#ifndef XKB_BASE_DIRECTORY
#define	XKB_BASE_DIRECTORY	"/usr/X11R6/lib/X11/xkb/"
#endif
#ifndef XKB_CONFIG_FILE
#define	XKB_CONFIG_FILE		"X0-config.keyboard"
#endif
#ifndef XKB_DFLT_RULES_FILE
#define	XKB_DFLT_RULES_FILE	"xfree86"
#endif
#ifndef XKB_DFLT_KB_LAYOUT
#define	XKB_DFLT_KB_LAYOUT	"us"
#endif
#ifndef XKB_DFLT_KB_MODEL
#define	XKB_DFLT_KB_MODEL	"pc101"
#endif
#ifndef XKB_DFLT_KB_VARIANT
#define	XKB_DFLT_KB_VARIANT	NULL
#endif
#ifndef XKB_DFLT_KB_OPTIONS
#define	XKB_DFLT_KB_OPTIONS	NULL
#endif

#endif

void
xnestBell(int volume, DeviceIntPtr pDev, pointer ctrl, int cls)
{
  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)
{
  XModifierKeymap *modifier_keymap;
  KeySym *keymap;
  int mapWidth;
  int min_keycode, max_keycode;
  KeySymsRec keySyms;
  CARD8 modmap[256];
  int i, j;
  XKeyboardState values;

  switch (onoff)
    {
    case DEVICE_INIT: 
      modifier_keymap = XGetModifierMapping(xnestDisplay);
      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
      
      for (i = 0; i < 256; i++)
	modmap[i] = 0;
      for (j = 0; j < 8; j++)
	for(i = 0; i < modifier_keymap->max_keypermod; i++) {
	  CARD8 keycode;
	  if ((keycode = 
	      modifier_keymap->
	        modifiermap[j * modifier_keymap->max_keypermod + i]))
	    modmap[keycode] |= 1<<j;
	}
      XFreeModifiermap(modifier_keymap);
      
      keySyms.minKeyCode = min_keycode;
      keySyms.maxKeyCode = max_keycode;
      keySyms.mapWidth = mapWidth;
      keySyms.map = keymap;

#ifdef XKB
      if (noXkbExtension) {
XkbError:
#endif
      XGetKeyboardControl(xnestDisplay, &values);

      memmove((char *) defaultKeyboardControl.autoRepeats,
             (char *) values.auto_repeats, sizeof(values.auto_repeats));

      InitKeyboardDeviceStruct(&pDev->public, &keySyms, modmap,
			       xnestBell, xnestChangeKeyboardControl);
#ifdef XKB
      } else {
	FILE *file;
	XkbConfigRtrnRec config;

	XkbComponentNamesRec names;
	char *rules, *model, *layout, *variants, *options;

	XkbDescPtr xkb;
	int op, event, error, major, minor;

	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));
	rules = XKB_DFLT_RULES_FILE;
	model = XKB_DFLT_KB_MODEL;
	layout = XKB_DFLT_KB_LAYOUT;
	variants = XKB_DFLT_KB_VARIANT;
	options = XKB_DFLT_KB_OPTIONS;
	if (XkbInitialMap) {
	  if ((names.keymap = strchr(XkbInitialMap, '/')) != NULL)
	    ++names.keymap;
	  else
	    names.keymap = XkbInitialMap;
	}

	if ((file = fopen(XKB_BASE_DIRECTORY XKB_CONFIG_FILE, "r")) != NULL) {
	  if (XkbCFParse(file, XkbCFDflts, xkb, &config) == 0) {
	    ErrorF("Error parsing config file.\n");
	    fclose(file);
	    goto XkbError;
	  }
	  if (config.rules_file)
	    rules = config.rules_file;
	  if (config.model)
	    model = config.model;
	  if (config.layout)
	    layout = config.layout;
	  if (config.variant)
	    variants = config.variant;
	  if (config.options)
	    options = config.options;

	  fclose(file);
	}

	XkbSetRulesDflts(rules, model, layout, variants, options);
	XkbInitKeyboardDeviceStruct(pDev, &names, &keySyms, modmap,
				    xnestBell, xnestChangeKeyboardControl);
	XkbDDXChangeControls(pDev, xkb->ctrls, xkb->ctrls);
	XkbFreeKeyboard(xkb, 0, False);
      }
#endif
#ifdef _XSERVER64
      xfree(keymap);
#else
      XFree(keymap);
#endif
      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;
}

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