git.sesse.net Git - vlc/blob - modules/access/cdda/intf.c

   1 /*****************************************************************************
   2  * intf.c: Video CD interface to handle user interaction and still time
   3  *****************************************************************************
   4  * Copyright (C) 2003 VideoLAN
   5  * $Id: intf.c,v 1.1 2003/11/26 03:35:26 rocky Exp $
   6  *
   7  * Authors: Rocky Bernstein <rocky@panix.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include <vlc/vlc.h>
  28 #include <vlc/intf.h>
  29
  30 #include "stream_control.h"
  31 #include "input_ext-intf.h"
  32 #include "input_ext-dec.h"
  33 #include "vlc_keys.h"
  34
  35 #include "cdda.h"
  36
  37 /*****************************************************************************
  38  * intf_sys_t: description and status of interface
  39  *****************************************************************************/
  40 struct intf_sys_t
  41 {
  42     input_thread_t    * p_input;
  43     cdda_data_t       * p_cdda;
  44     vlc_bool_t          b_click, b_move, b_key_pressed;
  45 };
  46
  47 /*****************************************************************************
  48  * Local prototypes.
  49  *****************************************************************************/
  50 static int  InitThread     ( intf_thread_t *p_intf );
  51 static int  KeyEvent       ( vlc_object_t *, char const *,
  52                              vlc_value_t, vlc_value_t, void * );
  53
  54 /* Exported functions */
  55 static void RunIntf        ( intf_thread_t *p_intf );
  56
  57 /*****************************************************************************
  58  * OpenIntf: initialize dummy interface
  59  *****************************************************************************/
  60 int E_(OpenIntf) ( vlc_object_t *p_this )
  61 {
  62     intf_thread_t *p_intf = (intf_thread_t *)p_this;
  63
  64     /* Allocate instance and initialize some members */
  65     p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
  66     if( p_intf->p_sys == NULL )
  67     {
  68         return( 1 );
  69     };
  70
  71     p_intf->pf_run = RunIntf;
  72
  73     var_AddCallback( p_intf->p_vlc, "key-pressed", KeyEvent, p_intf );
  74
  75     return( 0 );
  76 }
  77
  78 /*****************************************************************************
  79  * CloseIntf: destroy dummy interface
  80  *****************************************************************************/
  81 void E_(CloseIntf) ( vlc_object_t *p_this )
  82 {
  83     intf_thread_t *p_intf = (intf_thread_t *)p_this;
  84
  85     /* Destroy structure */
  86     free( p_intf->p_sys );
  87 }
  88
  89 /*****************************************************************************
  90  * RunIntf: main loop
  91  *****************************************************************************/
  92 static void RunIntf( intf_thread_t *p_intf )
  93 {
  94     vlc_object_t      * p_vout = NULL;
  95     cdda_data_t       * p_cdda;
  96     input_thread_t    * p_input;
  97
  98     /* What you add to the last input number entry. It accumulates all of
  99        the 10_ADD keypresses */
 100     int number_addend = 0;
 101
 102     if( InitThread( p_intf ) < 0 )
 103     {
 104         msg_Err( p_intf, "can't initialize intf" );
 105         return;
 106     }
 107
 108     p_input = p_intf->p_sys->p_input;
 109     p_cdda   = p_intf->p_sys->p_cdda =
 110       (cdda_data_t *) p_input->p_access_data;
 111
 112     dbg_print( INPUT_DBG_CALL, "intf initialized" );
 113
 114     /* Main loop */
 115     while( !p_intf->b_die )
 116     {
 117       vlc_mutex_lock( &p_intf->change_lock );
 118
 119       /*
 120        * keyboard event
 121        */
 122       if( p_vout && p_intf->p_sys->b_key_pressed )
 123         {
 124           vlc_value_t val;
 125           int i, i_action = -1;
 126           struct hotkey *p_hotkeys = p_intf->p_vlc->p_hotkeys;
 127
 128           p_intf->p_sys->b_key_pressed = VLC_FALSE;
 129
 130           /* Find action triggered by hotkey (if any) */
 131           var_Get( p_intf->p_vlc, "key-pressed", &val );
 132
 133           dbg_print( INPUT_DBG_EVENT, "Key pressed %d", val.i_int );
 134
 135           for( i = 0; p_hotkeys[i].psz_action != NULL; i++ )
 136             {
 137               if( p_hotkeys[i].i_key == val.i_int )
 138                 {
 139                   i_action = p_hotkeys[i].i_action;
 140                 }
 141             }
 142
 143           if( i_action != -1) {
 144             switch (i_action) {
 145
 146             case ACTIONID_NAV_LEFT:
 147               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_LEFT (%d)",
 148                          number_addend );
 149               do {
 150                 if ( CDDAPlay( p_input, p_cdda->i_track-1 ) ) {
 151                   p_cdda->i_track--;
 152                 } else {
 153                   break;
 154                 }
 155               } while (number_addend-- > 0);
 156               break;
 157
 158             case ACTIONID_NAV_RIGHT:
 159               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_RIGHT (%d)",
 160                          number_addend );
 161               do {
 162                 if ( CDDAPlay( p_input, p_cdda->i_track+1 ) ) {
 163                   p_cdda->i_track++;
 164                 } else {
 165                   break;
 166                 }
 167               } while (number_addend-- > 0);
 168               break;
 169
 170             case ACTIONID_NAV_UP:
 171               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_UP" );
 172               do {
 173                 ;
 174               } while (number_addend-- > 0);
 175               break;
 176
 177             case ACTIONID_NAV_DOWN:
 178               dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_DOWN"  );
 179               break;
 180
 181             case ACTIONID_NAV_ACTIVATE:
 182               {
 183                 dbg_print( INPUT_DBG_EVENT, "ACTIONID_NAV_ACTIVATE" );
 184                 if ( CDDAPlay( p_input, number_addend ) ) {
 185                   p_cdda->i_track = number_addend;
 186                 } else {
 187                   break;
 188                 }
 189                 break;
 190               }
 191             }
 192             number_addend = 0;
 193           } else {
 194             unsigned int digit_entered=0;
 195
 196             switch (val.i_int) {
 197             case '9':
 198               digit_entered++;
 199             case '8':
 200               digit_entered++;
 201             case '7':
 202               digit_entered++;
 203             case '6':
 204               digit_entered++;
 205             case '5':
 206               digit_entered++;
 207             case '4':
 208               digit_entered++;
 209             case '3':
 210               digit_entered++;
 211             case '2':
 212               digit_entered++;
 213             case '1':
 214               digit_entered++;
 215             case '0':
 216               {
 217                 number_addend *= 10;
 218                 number_addend += digit_entered;
 219                 dbg_print( INPUT_DBG_EVENT,
 220                            "Added %d. Number is now: %d\n",
 221                            digit_entered, number_addend);
 222                 break;
 223               }
 224             }
 225           }
 226         }
 227
 228
 229       vlc_mutex_unlock( &p_intf->change_lock );
 230
 231       if( p_vout == NULL )
 232         {
 233           p_vout = vlc_object_find( p_intf->p_sys->p_input,
 234                                     VLC_OBJECT_VOUT, FIND_ANYWHERE );
 235           if( p_vout )
 236             {
 237               var_AddCallback( p_vout, "key-pressed", KeyEvent, p_intf );
 238             }
 239         }
 240
 241
 242       /* Wait a bit */
 243       msleep( INTF_IDLE_SLEEP );
 244     }
 245
 246     if( p_vout )
 247     {
 248         var_DelCallback( p_vout, "key-pressed", KeyEvent, p_intf );
 249         vlc_object_release( p_vout );
 250     }
 251
 252     vlc_object_release( p_intf->p_sys->p_input );
 253 }
 254
 255 /*****************************************************************************
 256  * InitThread:
 257  *****************************************************************************/
 258 static int InitThread( intf_thread_t * p_intf )
 259 {
 260     /* We might need some locking here */
 261     if( !p_intf->b_die )
 262     {
 263         input_thread_t * p_input;
 264
 265         p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT, FIND_PARENT );
 266
 267         /* Maybe the input just died */
 268         if( p_input == NULL )
 269         {
 270             return VLC_EGENERIC;
 271         }
 272
 273         vlc_mutex_lock( &p_intf->change_lock );
 274
 275         p_intf->p_sys->p_input = p_input;
 276
 277         p_intf->p_sys->b_move = VLC_FALSE;
 278         p_intf->p_sys->b_click = VLC_FALSE;
 279         p_intf->p_sys->b_key_pressed = VLC_FALSE;
 280
 281         vlc_mutex_unlock( &p_intf->change_lock );
 282
 283         return VLC_SUCCESS;
 284     }
 285     else
 286     {
 287         return VLC_EGENERIC;
 288     }
 289 }
 290
 291 /*****************************************************************************
 292  * KeyEvent: callback for keyboard events
 293  *****************************************************************************/
 294 static int KeyEvent( vlc_object_t *p_this, char const *psz_var,
 295                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
 296 {
 297     intf_thread_t *p_intf = (intf_thread_t *)p_data;
 298     vlc_mutex_lock( &p_intf->change_lock );
 299
 300     p_intf->p_sys->b_key_pressed = VLC_TRUE;
 301
 302     vlc_mutex_unlock( &p_intf->change_lock );
 303
 304     return VLC_SUCCESS;
 305 }