src/lib/ecore_fb/ecore_fb_ps2.c

   1 typedef struct _Ecore_Fb_Ps2_Event Ecore_Fb_Ps2_Event;
   2 struct _Ecore_Fb_Ps2_Event
   3 {
   4    unsigned char button;
   5    unsigned char x;
   6    unsigned char y;
   7    unsigned char z;
   8 };
   9
  10 static int _ecore_fb_ps2_event_byte_count = 0;
  11 static Ecore_Fb_Ps2_Event _ecore_fb_ps2_event;
  12 static int _ecore_fb_ps2_fd = 0;
  13 static Eina_Bool _ecore_fb_ps2_fd_handler(void *data, Ecore_Fd_Handler *fd_handler);
  14
  15 int
  16 ecore_fb_ps2_init(void)
  17 {
  18    _ecore_fb_ps2_fd = open("/dev/psaux", O_RDWR);
  19    if (_ecore_fb_ps2_fd >= 0)
  20      {
  21         prev_flags = fcntl(_ecore_fb_ps2_fd, F_GETFL);
  22         fcntl(_ecore_fb_ps2_fd, F_SETFL, prev_flags | O_NONBLOCK);
  23         _ecore_fb_ts_fd_handler_handle = ecore_main_fd_handler_add(_ecore_fb_ps2_fd,
  24                                                                    ECORE_FD_READ,
  25                                                                    _ecore_fb_ps2_fd_handler, NULL, NULL, NULL);
  26         if (!_ecore_fb_ts_fd_handler_handle)
  27           {
  28              close(_ecore_fb_ps2_fd);
  29              return 0;
  30           }
  31         return 1;
  32      }
  33    return 0;
  34 }
  35
  36 void
  37 ecore_fb_ps2_shutdown(void)
  38 {
  39    if (_ecore_fb_ps2_fd > 0) close(_ecore_fb_ps2_fd);
  40    _ecore_fb_ps2_fd = 0;
  41 }
  42
  43 static Eina_Bool
  44 _ecore_fb_ps2_fd_handler(void *data __UNUSED__, Ecore_Fd_Handler *fd_handler __UNUSED__)
  45 {
  46    static int prev_x = 0, prev_y = 0, prev_button = 0;
  47    static double last_time = 0;
  48    static double last_last_time = 0;
  49    int v = 0;
  50
  51    do
  52      {
  53         int x, y, button, i;
  54         int num;
  55         char *ptr;
  56         double t;
  57         static int did_double = 0;
  58         static int did_triple = 0;
  59
  60         ptr = (char *)&(_ecore_fb_ps2_event);
  61         ptr += _ecore_fb_ps2_event_byte_count;
  62         num = sizeof(Ecore_Fb_Ps2_Event) - _ecore_fb_ps2_event_byte_count;
  63         v = read(_ecore_fb_ps2_fd, ptr, num);
  64         if (v < 0) return EINA_TRUE;
  65         _ecore_fb_ps2_event_byte_count += v;
  66         if (v < num) return EINA_TRUE;
  67         t = ecore_time_get();
  68         _ecore_fb_ps2_event_byte_count = 0;
  69         if (_ecore_fb_ps2_event.button & 0x10)
  70            x = prev_x + (0xffffff00 | _ecore_fb_ps2_event.x);
  71         else
  72            x = prev_x + _ecore_fb_ps2_event.x;
  73         if (_ecore_fb_ps2_event.button & 0x20)
  74            y = prev_y - (0xffffff00 | _ecore_fb_ps2_event.y);
  75         else
  76            y = prev_y - _ecore_fb_ps2_event.y;
  77         button = _ecore_fb_ps2_event.button & 0x7;
  78         if (x < 0) x = 0;
  79         if (y < 0) y = 0;
  80         if (x >= _ecore_fb_console_w) x = _ecore_fb_console_w - 1;
  81         if (y >= _ecore_fb_console_h) y = _ecore_fb_console_h - 1;
  82         /* add event to queue */
  83         /* always add a move event */
  84         if (1)
  85           {
  86              /* MOVE: mouse is down and was */
  87              Ecore_Fb_Event_Mouse_Move *e;
  88
  89              e = calloc(1, sizeof(Ecore_Fb_Event_Mouse_Move));
  90              if (!e) goto retry;
  91              e->x = x;
  92              e->y = y;
  93              ecore_event_add(ECORE_FB_EVENT_MOUSE_MOVE, e, NULL, NULL);
  94           }
  95         for (i = 1; i <= 3; i++)
  96           {
  97              int mask;
  98
  99              mask = 1 << (i - 1);
 100              if (((button & mask)) && (!(prev_button & mask)))
 101                {
 102                   /* DOWN: mouse is down, but was not now */
 103                   Ecore_Fb_Event_Mouse_Button_Down *e;
 104
 105                   e = calloc(1, sizeof(Ecore_Fb_Event_Mouse_Button_Down));
 106                   if (!e) goto retry;
 107                   e->x = x;
 108                   e->y = y;
 109                   e->button = i;
 110                   if ((t - last_time) <= _ecore_fb_double_click_time)
 111                     {
 112                        e->double_click = 1;
 113                        did_double = 1;
 114                     }
 115                   else
 116                     {
 117                        did_double = 0;
 118                        did_triple = 0;
 119                     }
 120                   if ((t - last_last_time) <= (2 * _ecore_fb_double_click_time))
 121                     {
 122                        did_triple = 1;
 123                        e->triple_click = 1;
 124                     }
 125                   else
 126                     {
 127                        did_triple = 0;
 128                     }
 129                   ecore_event_add(ECORE_FB_EVENT_MOUSE_BUTTON_DOWN, e, NULL, NULL);
 130                }
 131              else if ((!(button & mask)) && ((prev_button & mask)))
 132                {
 133                   /* UP: mouse was down, but is not now */
 134                   Ecore_Fb_Event_Mouse_Button_Up *e;
 135
 136                   e = calloc(1, sizeof(Ecore_Fb_Event_Mouse_Button_Up));
 137                   if (!e) goto retry;
 138                   e->x = x;
 139                   e->y = y;
 140                   e->button = i;
 141                   if (did_double)
 142                      e->double_click = 1;
 143                   if (did_triple)
 144                      e->triple_click = 1;
 145                   ecore_event_add(ECORE_FB_EVENT_MOUSE_BUTTON_UP, e, NULL, NULL);
 146                }
 147           }
 148         if (did_triple)
 149           {
 150              last_time = 0;
 151              last_last_time = 0;
 152           }
 153         else
 154           {
 155              last_last_time = last_time;
 156              last_time = t;
 157           }
 158         retry:
 159         prev_x = x;
 160         prev_y = y;
 161         prev_button = button;
 162      }
 163    while (v > 0);
 164    return EINA_TRUE;
 165 }
 166 /**
 167  * @defgroup Ecore_FB_Click_Group Framebuffer Double Click Functions
 168  *
 169  * Functions that deal with the double click time of the framebuffer.
 170  */
 171
 172 /**
 173  * Sets the timeout for a double and triple clicks to be flagged.
 174  *
 175  * This sets the time between clicks before the double_click flag is
 176  * set in a button down event. If 3 clicks occur within double this
 177  * time, the triple_click flag is also set.
 178  *
 179  * @param   t The time in seconds
 180  * @ingroup Ecore_FB_Click_Group
 181  */
 182 EAPI void
 183 ecore_fb_double_click_time_set(double t)
 184 {
 185    if (t < 0.0) t = 0.0;
 186    _ecore_fb_double_click_time = t;
 187 }
 188
 189 /**
 190  * Retrieves the double and triple click flag timeout.
 191  *
 192  * See @ref ecore_x_double_click_time_set for more information.
 193  *
 194  * @return  The timeout for double clicks in seconds.
 195  * @ingroup Ecore_FB_Click_Group
 196  */
 197 EAPI double
 198 ecore_fb_double_click_time_get(void)
 199 {
 200    return _ecore_fb_double_click_time;
 201 }
 202