mp_fifo.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdlib.h>
  20 #include <assert.h>
  21 #include <stdbool.h>
  22 #include "osdep/timer.h"
  23 #include "input/input.h"
  24 #include "input/keycodes.h"
  25 #include "mp_fifo.h"
  26 #include "talloc.h"
  27 #include "options.h"
  28
  29
  30 struct mp_fifo {
  31     struct MPOpts *opts;
  32     struct input_ctx *input;
  33     int last_key_down;
  34     unsigned last_down_time;
  35 };
  36
  37 struct mp_fifo *mp_fifo_create(struct input_ctx *input, struct MPOpts *opts)
  38 {
  39     struct mp_fifo *fifo = talloc_zero(NULL, struct mp_fifo);
  40     fifo->input = input;
  41     fifo->opts = opts;
  42     return fifo;
  43 }
  44
  45 static void put_double(struct mp_fifo *fifo, int code)
  46 {
  47   if (code >= MOUSE_BTN0 && code < MOUSE_BTN_END)
  48       mp_input_feed_key(fifo->input, code - MOUSE_BTN0 + MOUSE_BTN0_DBL);
  49 }
  50
  51 void mplayer_put_key(struct mp_fifo *fifo, int code)
  52 {
  53     unsigned now = GetTimerMS();
  54     int doubleclick_time = fifo->opts->doubleclick_time;
  55     // ignore system-doubleclick if we generate these events ourselves
  56     if (doubleclick_time
  57         && (code & ~MP_KEY_DOWN) >= MOUSE_BTN0_DBL
  58         && (code & ~MP_KEY_DOWN) < MOUSE_BTN_DBL_END)
  59         return;
  60     mp_input_feed_key(fifo->input, code);
  61     if (code & MP_KEY_DOWN) {
  62         code &= ~MP_KEY_DOWN;
  63         if (fifo->last_key_down == code
  64             && now - fifo->last_down_time < doubleclick_time)
  65             put_double(fifo, code);
  66         fifo->last_key_down = code;
  67         fifo->last_down_time = now;
  68     }
  69 }