eleni.mutantstargoat.com Git - winnie/blob - src/fbdev/keyboard.cc

   1 #ifdef WINNIE_FBDEV
   2 #include <errno.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6
   7 #include <fcntl.h>
   8 #include <sys/ioctl.h>
   9 #include <termios.h>
  10 #include <unistd.h>
  11
  12 #include "keyboard.h"
  13 #include "window.h"
  14 #include "wm.h"
  15
  16 static int dev_fd = -1;
  17 static enum {RAW, CANONICAL} ttystate = CANONICAL;
  18
  19 bool init_keyboard()
  20 {
  21         if((dev_fd = open("/dev/tty", O_RDWR)) == -1) {
  22                 fprintf(stderr, "Cannot open /dev/tty : %s\n", strerror(errno));
  23                 return false;
  24         }
  25
  26         struct termios buf;
  27
  28         if(tcgetattr(dev_fd, &buf) < 0) {
  29                 fprintf(stderr, "Cannot get the tty parameters : %s\n", strerror(errno));
  30                 return false;
  31         }
  32
  33         buf.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
  34         buf.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
  35         buf.c_cflag &= ~(CSIZE | PARENB);
  36         buf.c_cflag |= CS8;
  37         buf.c_oflag &= ~(OPOST);
  38
  39         if(tcsetattr(dev_fd, TCSAFLUSH, &buf) < 0) {
  40                 return false;
  41         }
  42
  43         ttystate = RAW;
  44         return true;
  45 }
  46
  47 void destroy_keyboard()
  48 {
  49         struct termios buf;
  50
  51         if(tcgetattr(dev_fd, &buf) < 0) {
  52                 fprintf(stderr, "Cannot get the tty parameters : %s\n", strerror(errno));
  53         }
  54
  55         buf.c_lflag |= (ECHO | ICANON | IEXTEN | ISIG);
  56         buf.c_iflag |= (BRKINT | ICRNL | INPCK | ISTRIP | IXON);
  57         buf.c_cflag |= (CSIZE | PARENB);
  58         buf.c_cflag &= CS8;
  59         buf.c_oflag |= (OPOST);
  60
  61         if(tcsetattr(dev_fd, TCSAFLUSH, &buf) < 0) {
  62                 fprintf(stderr, "Cannot set the tty parameters : %s\n", strerror(errno));
  63         }
  64
  65         ttystate = CANONICAL;
  66
  67         if(dev_fd != -1) {
  68                 close(dev_fd);
  69                 dev_fd = -1;
  70         }
  71 }
  72
  73 int get_keyboard_fd()
  74 {
  75         return dev_fd;
  76 }
  77
  78 void process_keyboard_event()
  79 {
  80         char key;
  81         if(read(dev_fd, &key, 1) < 1) {
  82                 return;
  83         }
  84
  85         if(key == 'q') {
  86                 exit(0);
  87         }
  88
  89         Window *focused_win = wm->get_focused_window();
  90         if(focused_win) {
  91                 KeyboardFuncType keyb_callback = focused_win->get_keyboard_callback();
  92                 if(keyb_callback) {
  93                         keyb_callback(focused_win, key, true); //TODO: true??
  94                 }
  95         }
  96
  97         /* TODO:
  98          * - handle system-wide key combinations (alt-tab?)
  99          * - otherwise send keypress/release to focused window
 100          */
 101 }
 102 #endif // WINNIE_FBDEV