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xte.c

/*
 *  
 *  Copyright (c) 2002 Steve Slaven, All Rights Reserved.
 *  
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License as
 *  published by the Free Software Foundation; either version 2 of
 *  the License, or (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA 02111-1307 USA
 *  
*/
#include <stdio.h>
#include <unistd.h>
#include <X11/Xlib.h>
#include <X11/extensions/XTest.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>

#include "debug.h"

#define IS_CMD( x, y ) strncmp( x, y, strlen( y ) ) == 0

#include "kbd.h"

/* Generates an X event, like keypress/mouseclick/move/etc
   like a little man in your computer.  :) */
KeyCode thing_to_keycode( Display *d, char *thing ) {
  KeyCode kc;
  KeySym ks;
  
  ks = XStringToKeysym( thing );
  if( ks == NoSymbol ){
    fprintf( stderr, "Unable to resolve keysym for '%s'\n", thing );
    return( thing_to_keycode( d, "space" ) );
  }

  kc = XKeysymToKeycode( d, ks );
  dmsg( 1, "String '%s' maps to keysym '%d'\n", thing, ks );
  dmsg( 1, "String '%s' maps to keycode '%d'\n", thing, kc );

  return( kc );
}

void send_key( Display *d, char *thing ) {
  int probidx;
  char *wrap_key = NULL;

  dmsg( 1, "Sending key '%s'\n", thing );

  /* Catch some common problem characters (thanks Martin Pirker) */
  probidx = 0;
  while( problems[ probidx ] != NULL ) {
    if( strcmp( thing, problems[ probidx ] ) == 0 ) {
      wrap_key = problems[ probidx + 1 ];
      thing = problems[ probidx + 2 ];
    }
    probidx += 3;
  }

  if( wrap_key != NULL )
       XTestFakeKeyEvent( d, thing_to_keycode( d, wrap_key ), True, CurrentTime );
  XTestFakeKeyEvent( d, thing_to_keycode( d, thing ), True, CurrentTime );
  XTestFakeKeyEvent( d, thing_to_keycode( d, thing ), False, CurrentTime );
  if( wrap_key != NULL )
       XTestFakeKeyEvent( d, thing_to_keycode( d, wrap_key ), False, CurrentTime );
}

void mouse_click( Display *d, int button ) {
  dmsg( 1, "Clicking mouse button %d\n", button );
  XTestFakeButtonEvent( d, button, True, CurrentTime );
  XTestFakeButtonEvent( d, button, False, CurrentTime );
}

void mouse_move( Display *d, int x, int y ) {
  dmsg( 1, "Moving mouse to %d,%d\n", x, y );
  XTestFakeMotionEvent( d, -1, x, y, CurrentTime );
}

void mouse_rel_move( Display *d, int x, int y ) {
  dmsg( 1, "Moving mouse relatively by %d,%d\n", x, y );
  /* This does not match my docs... hrm... */
  XTestFakeRelativeMotionEvent( d, x, y, CurrentTime );
  /* Should include screen?
  XTestFakeRelativeMotionEvent( d, -1, x, y, CurrentTime );
  */
}

void process_command( Display *d, const char *cmd ) {
  /* Process a command */
  int tmpx,tmpy;
  char str[ 128 ];

  bzero( str, 128 );
  if( IS_CMD( cmd, "mouseclick " ) ) {
    sscanf( cmd, "mouseclick %d", &tmpx );
    mouse_click( d, tmpx );
  }else if( IS_CMD( cmd, "key " ) ) {
    strncpy( str, &cmd[ 4 ], 128 );
    send_key( d, str );
  }else if( IS_CMD( cmd, "keydown " ) ) {
    strncpy( str, &cmd[ 8 ], 128 );
    XTestFakeKeyEvent( d, thing_to_keycode( d, str ), True, CurrentTime );
  }else if( IS_CMD( cmd, "keyup " ) ) {
    strncpy( str, &cmd[ 6 ], 128 );
    XTestFakeKeyEvent( d, thing_to_keycode( d, str ), False, CurrentTime );
  }else if( IS_CMD( cmd, "mousemove " ) ) {
    sscanf( cmd, "mousemove %d %d", &tmpx, &tmpy );
    mouse_move( d, tmpx, tmpy );
  }else if( IS_CMD( cmd, "mousermove " ) ) {
    sscanf( cmd, "mousermove %d %d", &tmpx, &tmpy );
    mouse_rel_move( d, tmpx, tmpy );
  }else if( IS_CMD( cmd, "sleep " ) ) {
    sscanf( cmd, "sleep %d", &tmpx );
    dmsg( 1, "sleep %d\n", tmpx );
    sleep( tmpx );
  }else if( IS_CMD( cmd, "usleep " ) ) {
    sscanf( cmd, "usleep %d", &tmpx );
    dmsg( 1, "usleep %d\n", tmpx );
    usleep( tmpx );
  }else if( IS_CMD( cmd, "mousedown " ) ) {
    sscanf( cmd, "mousedown %d", &tmpx );
    XTestFakeButtonEvent( d, tmpx, True, CurrentTime );
  }else if( IS_CMD( cmd, "mouseup " ) ) {
    sscanf( cmd, "mouseup %d", &tmpx );
    XTestFakeButtonEvent( d, tmpx, False, CurrentTime );
  }else if( IS_CMD( cmd, "str " ) ) {
    cmd += 4;
    while( cmd[ 0 ] != 0 ) {
      str[ 0 ] = cmd[ 0 ];
      send_key( d, str );
      cmd++;
    }
  }else{
    fprintf( stderr, "Unknown command '%s'\n", cmd );
  }

  XFlush( d );
}

int main( int argc, char *argv[] ) {
  Display *dpy = NULL;
  int cnt, tmp_i;
  char *buf, *display = NULL;
  int opt;
 
  while( ( opt = getopt( argc, argv, "hd:x:" ) ) != EOF ) {
    switch( opt ) {
    case 'h':
      printf( "xte v" VERSION "\n"
            "Generates fake input using the XTest extension, more reliable than xse\n"
            "Author: Steve Slaven - http://hoopajoo.net\n"
            "Current keyboard map: " KBDMAP "\n"
            "\n"
            "usage: %s [-h] [-x display] [arg ..]\n"
            "\n"
            "  -h  this help\n"
            "  -x  send commands to remote X server.  Note that some commands\n"
            "      may not work correctly unless the display is on the console,\n"
            "      e.g. the display is currently controlled by the keyboard and\n"
            "      mouse and not in the background.  This seems to be a limitation\n"
            "      of the XTest extension.\n"
            "  arg args instructing the little man on what to do (see below)\n"
            "      if no args are passed, commands are read from stdin separated\n"
            "      by newlines, to allow a batch mode\n"
            "\n"
            " Commands:\n"
            "  key k          Press and release key k\n"
            "  keydown k      Press key k down\n"
            "  keyup k        Release key k\n"
            "  str string     Do a bunch of key X events for each char in string\n"
            "  mouseclick i   Click mouse button i\n"
            "  mousemove x y  Move mouse to screen position x,y\n"
            "  mousermove x y Move mouse relative from current location by x,y\n"
            "  mousedown i    Press mouse button i down\n"
            "  mouseup i      Release mouse button i\n"
            "  sleep x        Sleep x seconds\n"
            "  usleep x       uSleep x microseconds\n"
            "\n"
            "Some useful keys (case sensitive)\n"
            "  Home\n"
            "  Left\n"
            "  Up\n"
            "  Right\n"
            "  Down\n"
            "  Page_Up\n"
            "  Page_Down\n"
            "  End\n"
            "  Return\n"
            "  BackSpace\n"
            "  Tab\n"
            "  Escape\n"
            "  Delete\n"
            "  Shift_L\n"
            "  Shift_R\n"
            "  Control_L\n"
            "  Control_R\n"
            "  Meta_L\n"
            "  Meta_R\n"
            "  Alt_L\n"
            "  Alt_R\n"
            "\n"
            "Sample, drag from 100,100 to 200,200 using mouse1:\n"
            "  xte 'mousemove 100 100' 'mousedown 1' 'mousemove 200 200' 'mouseup 1'\n"
            "\n"
            , argv[ 0 ] );
      exit( 0 );
      break;
      
    case 'd':
      sscanf( optarg, "%d", &tmp_i );
      dmsg( 2, "Debug set to %d\n", tmp_i );
      debug_level( tmp_i );
      break;
  
    case 'x':
      display = optarg;
      break;

    case '?':
      fprintf( stderr, "Unknown option '%c'\n", optopt );
      break;
      
    default:
      fprintf( stderr, "Unhandled option '%c'\n", opt );
      break;
    }
  }
  
  dpy = XOpenDisplay( display );
  if( dpy == NULL ) {
    fprintf( stderr, "Unable to open display '%s'\n", display == NULL ? "default" : display );
    exit( 1 );
  }

  if( argc - optind >= 1 ) {
    /* Arg mode */
    for( cnt = optind; cnt < argc; cnt++ ) {
      process_command( dpy, argv[ cnt ] );
    }
  }else{
    /* STDIN mode */
    buf = (char *)malloc( 128 );
    while( fgets( buf, 128, stdin ) ) {
      buf[ strlen( buf ) - 1 ] = 0; /* Chop \n */
      process_command( dpy, buf );
    }
  }
  
  XCloseDisplay( dpy );
  exit( 0 );
}

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