src/config/keys.c

   1 /*****************************************************************************
   2  * keys.c: keys configuration
   3  *****************************************************************************
   4  * Copyright (C) 2003-2009 VLC authors and VideoLAN
   5  *
   6  * Authors: Sigmund Augdal Helberg <dnumgis@videolan.org>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU Lesser General Public License as published by
  10  * the Free Software Foundation; either version 2.1 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public License
  19  * along with this program; if not, write to the Free Software Foundation,
  20  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 #ifdef HAVE_CONFIG_H
  24 # include <config.h>
  25 #endif
  26
  27 /**
  28  * \file
  29  * This file defines functions and structures for hotkey handling in vlc
  30  */
  31
  32 #ifdef HAVE_CONFIG_H
  33 # include <config.h>
  34 #endif
  35
  36 #include <stdlib.h>
  37 #include <limits.h>
  38 #ifdef HAVE_SEARCH_H
  39 # include <search.h>
  40 #endif
  41 #include <errno.h>
  42
  43 #include <vlc_common.h>
  44 #include <vlc_keys.h>
  45 #include "configuration.h"
  46 #include "libvlc.h"
  47
  48 typedef struct key_descriptor_s
  49 {
  50     const char psz_key_string[20];
  51     uint32_t i_key_code;
  52 } key_descriptor_t;
  53
  54 static const struct key_descriptor_s vlc_keys[] =
  55 {   /* Alphabetical order */
  56     { N_("Backspace"),         KEY_BACKSPACE         },
  57     { N_("Brightness Down"),   KEY_BRIGHTNESS_DOWN   },
  58     { N_("Brightness Up"),     KEY_BRIGHTNESS_UP     },
  59     { N_("Browser Back"),      KEY_BROWSER_BACK      },
  60     { N_("Browser Favorites"), KEY_BROWSER_FAVORITES },
  61     { N_("Browser Forward"),   KEY_BROWSER_FORWARD   },
  62     { N_("Browser Home"),      KEY_BROWSER_HOME      },
  63     { N_("Browser Refresh"),   KEY_BROWSER_REFRESH   },
  64     { N_("Browser Search"),    KEY_BROWSER_SEARCH    },
  65     { N_("Browser Stop"),      KEY_BROWSER_STOP      },
  66     { N_("Delete"),            KEY_DELETE            },
  67     { N_("Down"),              KEY_DOWN              },
  68     { N_("End"),               KEY_END               },
  69     { N_("Enter"),             KEY_ENTER             },
  70     { N_("Esc"),               KEY_ESC               },
  71     { N_("F1"),                KEY_F1                },
  72     { N_("F10"),               KEY_F10               },
  73     { N_("F11"),               KEY_F11               },
  74     { N_("F12"),               KEY_F12               },
  75     { N_("F2"),                KEY_F2                },
  76     { N_("F3"),                KEY_F3                },
  77     { N_("F4"),                KEY_F4                },
  78     { N_("F5"),                KEY_F5                },
  79     { N_("F6"),                KEY_F6                },
  80     { N_("F7"),                KEY_F7                },
  81     { N_("F8"),                KEY_F8                },
  82     { N_("F9"),                KEY_F9                },
  83     { N_("Home"),              KEY_HOME              },
  84     { N_("Insert"),            KEY_INSERT            },
  85     { N_("Left"),              KEY_LEFT              },
  86     { N_("Media Angle"),       KEY_MEDIA_ANGLE       },
  87     { N_("Media Audio Track"), KEY_MEDIA_AUDIO       },
  88     { N_("Media Forward"),     KEY_MEDIA_FORWARD     },
  89     { N_("Media Menu"),        KEY_MEDIA_MENU        },
  90     { N_("Media Next Frame"),  KEY_MEDIA_FRAME_NEXT  },
  91     { N_("Media Next Track"),  KEY_MEDIA_NEXT_TRACK  },
  92     { N_("Media Play Pause"),  KEY_MEDIA_PLAY_PAUSE  },
  93     { N_("Media Prev Frame"),  KEY_MEDIA_FRAME_PREV  },
  94     { N_("Media Prev Track"),  KEY_MEDIA_PREV_TRACK  },
  95     { N_("Media Record"),      KEY_MEDIA_RECORD      },
  96     { N_("Media Repeat"),      KEY_MEDIA_REPEAT      },
  97     { N_("Media Rewind"),      KEY_MEDIA_REWIND      },
  98     { N_("Media Select"),      KEY_MEDIA_SELECT      },
  99     { N_("Media Shuffle"),     KEY_MEDIA_SHUFFLE     },
 100     { N_("Media Stop"),        KEY_MEDIA_STOP        },
 101     { N_("Media Subtitle"),    KEY_MEDIA_SUBTITLE    },
 102     { N_("Media Time"),        KEY_MEDIA_TIME        },
 103     { N_("Media View"),        KEY_MEDIA_VIEW        },
 104     { N_("Menu"),              KEY_MENU              },
 105     { N_("Mouse Wheel Down"),  KEY_MOUSEWHEELDOWN    },
 106     { N_("Mouse Wheel Left"),  KEY_MOUSEWHEELLEFT    },
 107     { N_("Mouse Wheel Right"), KEY_MOUSEWHEELRIGHT   },
 108     { N_("Mouse Wheel Up"),    KEY_MOUSEWHEELUP      },
 109     { N_("Page Down"),         KEY_PAGEDOWN          },
 110     { N_("Page Up"),           KEY_PAGEUP            },
 111     { N_("Pause"),             KEY_PAUSE             },
 112     { N_("Print"),             KEY_PRINT             },
 113     { N_("Right"),             KEY_RIGHT             },
 114     { N_("Space"),             ' '                   },
 115     { N_("Tab"),               KEY_TAB               },
 116     { N_("Unset"),             KEY_UNSET             },
 117     { N_("Up"),                KEY_UP                },
 118     { N_("Volume Down"),       KEY_VOLUME_DOWN       },
 119     { N_("Volume Mute"),       KEY_VOLUME_MUTE       },
 120     { N_("Volume Up"),         KEY_VOLUME_UP         },
 121     { N_("Zoom In"),           KEY_ZOOM_IN           },
 122     { N_("Zoom Out"),          KEY_ZOOM_OUT          },
 123 };
 124 #define KEYS_COUNT (sizeof(vlc_keys)/sizeof(vlc_keys[0]))
 125
 126 static int keystrcmp (const void *key, const void *elem)
 127 {
 128     const char *sa = key, *sb = elem;
 129     return strcmp (sa, sb);
 130 }
 131
 132 /* Convert Unicode code point to UTF-8 */
 133 static char *utf8_cp (uint_fast32_t cp, char *buf)
 134 {
 135     if (cp < (1 << 7))
 136     {
 137         buf[1] = 0;
 138         buf[0] = cp;
 139     }
 140     else if (cp < (1 << 11))
 141     {
 142         buf[2] = 0;
 143         buf[1] = 0x80 | (cp & 0x3F);
 144         cp >>= 6;
 145         buf[0] = 0xC0 | cp;
 146     }
 147     else if (cp < (1 << 16))
 148     {
 149         buf[3] = 0;
 150         buf[2] = 0x80 | (cp & 0x3F);
 151         cp >>= 6;
 152         buf[1] = 0x80 | (cp & 0x3F);
 153         cp >>= 6;
 154         buf[0] = 0xE0 | cp;
 155     }
 156     else if (cp < (1 << 21))
 157     {
 158         buf[4] = 0;
 159         buf[3] = 0x80 | (cp & 0x3F);
 160         cp >>= 6;
 161         buf[2] = 0x80 | (cp & 0x3F);
 162         cp >>= 6;
 163         buf[1] = 0x80 | (cp & 0x3F);
 164         cp >>= 6;
 165         buf[0] = 0xE0 | cp;
 166     }
 167     else
 168         return NULL;
 169     return buf;
 170 }
 171
 172 /**
 173  * Parse a human-readable string representation of a VLC key code.
 174  * @note This only works with the American English representation
 175  * (a.k.a. C or POSIX), not with the local representation returned from
 176  * vlc_keycode2str().
 177  * @return a VLC key code, or KEY_UNSET on failure.
 178  */
 179 uint_fast32_t vlc_str2keycode (const char *name)
 180 {
 181     uint_fast32_t mods = 0;
 182     uint32_t code;
 183
 184     for (;;)
 185     {
 186         size_t len = strcspn (name, "-+");
 187         if (len == 0 || name[len] == '\0')
 188             break;
 189
 190         if (len == 4 && !strncasecmp (name, "Ctrl", 4))
 191             mods |= KEY_MODIFIER_CTRL;
 192         if (len == 3 && !strncasecmp (name, "Alt", 3))
 193             mods |= KEY_MODIFIER_ALT;
 194         if (len == 5 && !strncasecmp (name, "Shift", 5))
 195             mods |= KEY_MODIFIER_SHIFT;
 196         if (len == 4 && !strncasecmp (name, "Meta", 4))
 197             mods |= KEY_MODIFIER_META;
 198         if (len == 7 && !strncasecmp (name, "Command", 7))
 199             mods |= KEY_MODIFIER_COMMAND;
 200
 201         name += len + 1;
 202     }
 203
 204     key_descriptor_t *d = bsearch (name, vlc_keys, KEYS_COUNT,
 205                                    sizeof (vlc_keys[0]), keystrcmp);
 206     if (d != NULL)
 207         code = d->i_key_code;
 208     else
 209     if (vlc_towc (name, &code) <= 0)
 210         code = KEY_UNSET;
 211
 212     if (code != KEY_UNSET)
 213         code |= mods;
 214     return code;
 215 }
 216
 217 static char *nooptext (const char *txt)
 218 {
 219     return (char *)txt;
 220 }
 221
 222 /**
 223  * Format a human-readable and unique representation of a VLC key code
 224  * (including modifiers).
 225  * @param code key code to translate to a string
 226  * @param locale true to get a localized string,
 227  *               false to get a C string suitable for 'vlcrc'
 228  * @return a heap-allocated string, or NULL on error.
 229  */
 230 char *vlc_keycode2str (uint_fast32_t code, bool locale)
 231 {
 232     char *(*tr) (const char *) = locale ? vlc_gettext : nooptext;
 233     const char *name;
 234     char *str, buf[5];
 235     uintptr_t key = code & ~KEY_MODIFIER;
 236
 237     for (size_t i = 0; i < KEYS_COUNT; i++)
 238         if (vlc_keys[i].i_key_code == key)
 239         {
 240             name = vlc_keys[i].psz_key_string;
 241             goto found;
 242         }
 243
 244     if (utf8_cp (key, buf) == NULL)
 245         return NULL;
 246     name = buf;
 247
 248 found:
 249     if (asprintf (&str, "%s%s%s%s%s%s",
 250                   (code & KEY_MODIFIER_CTRL) ? tr(N_("Ctrl+")) : "",
 251                   (code & KEY_MODIFIER_ALT) ? tr(N_("Alt+")) : "",
 252                   (code & KEY_MODIFIER_SHIFT) ? tr(N_("Shift+")) : "",
 253                   (code & KEY_MODIFIER_META) ? tr(N_("Meta+")) : "",
 254                   (code & KEY_MODIFIER_COMMAND) ? tr(N_("Command+")) : "",
 255                   tr(name)) == -1)
 256         return NULL;
 257     return str;
 258 }
 259
 260
 261 /*** VLC key map ***/
 262
 263 #define MAXACTION 20
 264 struct action
 265 {
 266     char name[MAXACTION];
 267     vlc_action_t value;
 268 };
 269
 270 static const struct action actions[] =
 271 {
 272     /* *MUST* be sorted (ASCII order) */
 273     { "aspect-ratio", ACTIONID_ASPECT_RATIO, },
 274     { "audio-track", ACTIONID_AUDIO_TRACK, },
 275     { "audiodelay-down", ACTIONID_AUDIODELAY_DOWN, },
 276     { "audiodelay-up", ACTIONID_AUDIODELAY_UP, },
 277     { "audiodevice-cycle", ACTIONID_AUDIODEVICE_CYCLE, },
 278     { "chapter-next", ACTIONID_CHAPTER_NEXT, },
 279     { "chapter-prev", ACTIONID_CHAPTER_PREV, },
 280     { "clear-playlist", ACTIONID_PLAY_CLEAR, },
 281     { "crop", ACTIONID_CROP, },
 282     { "crop-bottom", ACTIONID_CROP_BOTTOM, },
 283     { "crop-left", ACTIONID_CROP_LEFT, },
 284     { "crop-right", ACTIONID_CROP_RIGHT, },
 285     { "crop-top", ACTIONID_CROP_TOP, },
 286     { "decr-scalefactor", ACTIONID_SCALE_DOWN, },
 287     { "deinterlace", ACTIONID_DEINTERLACE, },
 288     { "deinterlace-mode", ACTIONID_DEINTERLACE_MODE, },
 289     { "disc-menu", ACTIONID_DISC_MENU, },
 290     { "faster", ACTIONID_FASTER, },
 291     { "frame-next", ACTIONID_FRAME_NEXT, },
 292     { "incr-scalefactor", ACTIONID_SCALE_UP, },
 293     { "intf-boss", ACTIONID_INTF_BOSS, },
 294     { "intf-popup-menu", ACTIONID_INTF_POPUP_MENU, },
 295     { "intf-show", ACTIONID_INTF_TOGGLE_FSC, },
 296     { "jump+extrashort", ACTIONID_JUMP_FORWARD_EXTRASHORT, },
 297     { "jump+long", ACTIONID_JUMP_FORWARD_LONG, },
 298     { "jump+medium", ACTIONID_JUMP_FORWARD_MEDIUM, },
 299     { "jump+short", ACTIONID_JUMP_FORWARD_SHORT, },
 300     { "jump-extrashort", ACTIONID_JUMP_BACKWARD_EXTRASHORT, },
 301     { "jump-long", ACTIONID_JUMP_BACKWARD_LONG, },
 302     { "jump-medium", ACTIONID_JUMP_BACKWARD_MEDIUM, },
 303     { "jump-short", ACTIONID_JUMP_BACKWARD_SHORT, },
 304     { "leave-fullscreen", ACTIONID_LEAVE_FULLSCREEN, },
 305     { "loop", ACTIONID_LOOP, },
 306     { "nav-activate", ACTIONID_NAV_ACTIVATE, },
 307     { "nav-down", ACTIONID_NAV_DOWN, },
 308     { "nav-left", ACTIONID_NAV_LEFT, },
 309     { "nav-right", ACTIONID_NAV_RIGHT, },
 310     { "nav-up", ACTIONID_NAV_UP, },
 311     { "next", ACTIONID_NEXT, },
 312     { "pause", ACTIONID_PAUSE, },
 313     { "play", ACTIONID_PLAY, },
 314     { "play-bookmark1", ACTIONID_PLAY_BOOKMARK1, },
 315     { "play-bookmark10", ACTIONID_PLAY_BOOKMARK10, },
 316     { "play-bookmark2", ACTIONID_PLAY_BOOKMARK2, },
 317     { "play-bookmark3", ACTIONID_PLAY_BOOKMARK3, },
 318     { "play-bookmark4", ACTIONID_PLAY_BOOKMARK4, },
 319     { "play-bookmark5", ACTIONID_PLAY_BOOKMARK5, },
 320     { "play-bookmark6", ACTIONID_PLAY_BOOKMARK6, },
 321     { "play-bookmark7", ACTIONID_PLAY_BOOKMARK7, },
 322     { "play-bookmark8", ACTIONID_PLAY_BOOKMARK8, },
 323     { "play-bookmark9", ACTIONID_PLAY_BOOKMARK9, },
 324     { "play-pause", ACTIONID_PLAY_PAUSE, },
 325     { "position", ACTIONID_POSITION, },
 326     { "prev", ACTIONID_PREV, },
 327     { "program-sid-next", ACTIONID_PROGRAM_SID_NEXT, },
 328     { "program-sid-prev", ACTIONID_PROGRAM_SID_PREV, },
 329     { "quit", ACTIONID_QUIT, },
 330     { "random", ACTIONID_RANDOM, },
 331     { "rate-faster-fine", ACTIONID_RATE_FASTER_FINE, },
 332     { "rate-normal", ACTIONID_RATE_NORMAL, },
 333     { "rate-slower-fine", ACTIONID_RATE_SLOWER_FINE, },
 334     { "record", ACTIONID_RECORD, },
 335     { "set-bookmark1", ACTIONID_SET_BOOKMARK1, },
 336     { "set-bookmark10", ACTIONID_SET_BOOKMARK10, },
 337     { "set-bookmark2", ACTIONID_SET_BOOKMARK2, },
 338     { "set-bookmark3", ACTIONID_SET_BOOKMARK3, },
 339     { "set-bookmark4", ACTIONID_SET_BOOKMARK4, },
 340     { "set-bookmark5", ACTIONID_SET_BOOKMARK5, },
 341     { "set-bookmark6", ACTIONID_SET_BOOKMARK6, },
 342     { "set-bookmark7", ACTIONID_SET_BOOKMARK7, },
 343     { "set-bookmark8", ACTIONID_SET_BOOKMARK8, },
 344     { "set-bookmark9", ACTIONID_SET_BOOKMARK9, },
 345     { "slower", ACTIONID_SLOWER, },
 346     { "snapshot", ACTIONID_SNAPSHOT, },
 347     { "stop", ACTIONID_STOP, },
 348     { "subdelay-down", ACTIONID_SUBDELAY_DOWN, },
 349     { "subdelay-up", ACTIONID_SUBDELAY_UP, },
 350     { "subpos-down", ACTIONID_SUBPOS_DOWN, },
 351     { "subpos-up", ACTIONID_SUBPOS_UP, },
 352     { "subsync-apply", ACTIONID_SUBSYNC_APPLY, },
 353     { "subsync-markaudio", ACTIONID_SUBSYNC_MARKAUDIO, },
 354     { "subsync-marksub", ACTIONID_SUBSYNC_MARKSUB, },
 355     { "subsync-reset", ACTIONID_SUBSYNC_RESET, },
 356     { "subtitle-track", ACTIONID_SUBTITLE_TRACK, },
 357     { "title-next", ACTIONID_TITLE_NEXT, },
 358     { "title-prev", ACTIONID_TITLE_PREV, },
 359     { "toggle-autoscale", ACTIONID_TOGGLE_AUTOSCALE, },
 360     { "toggle-fullscreen", ACTIONID_TOGGLE_FULLSCREEN, },
 361     { "uncrop-bottom", ACTIONID_UNCROP_BOTTOM, },
 362     { "uncrop-left", ACTIONID_UNCROP_LEFT, },
 363     { "uncrop-right", ACTIONID_UNCROP_RIGHT, },
 364     { "uncrop-top", ACTIONID_UNCROP_TOP, },
 365     { "unzoom", ACTIONID_UNZOOM, },
 366     { "vol-down", ACTIONID_VOL_DOWN, },
 367     { "vol-mute", ACTIONID_VOL_MUTE, },
 368     { "vol-up", ACTIONID_VOL_UP, },
 369     { "wallpaper", ACTIONID_WALLPAPER, },
 370     { "zoom", ACTIONID_ZOOM, },
 371     { "zoom-double", ACTIONID_ZOOM_DOUBLE, },
 372     { "zoom-half", ACTIONID_ZOOM_HALF, },
 373     { "zoom-original", ACTIONID_ZOOM_ORIGINAL, },
 374     { "zoom-quarter", ACTIONID_ZOOM_QUARTER, },
 375 };
 376 #define ACTIONS_COUNT (sizeof (actions) / sizeof (actions[0]))
 377
 378 struct mapping
 379 {
 380     uint32_t     key; ///< Key code
 381     vlc_action_t action; ///< Action ID
 382 };
 383
 384 static int keycmp (const void *a, const void *b)
 385 {
 386     const struct mapping *ka = a, *kb = b;
 387
 388 #if (INT_MAX >= 0x7fffffff)
 389     return ka->key - kb->key;
 390 #else
 391     return (ka->key < kb->key) ? -1 : (ka->key > kb->key) ? +1 : 0;
 392 #endif
 393 }
 394
 395 struct vlc_actions
 396 {
 397     void *map; /* Key map */
 398     void *global_map; /* Grabbed/global key map */
 399     struct hotkey keys[1];
 400 };
 401
 402 static int vlc_key_to_action (vlc_object_t *obj, const char *varname,
 403                               vlc_value_t prevkey, vlc_value_t curkey, void *d)
 404 {
 405     void *const *map = d;
 406     const struct mapping **pent;
 407     uint32_t keycode = curkey.i_int;
 408
 409     pent = tfind (&keycode, map, keycmp);
 410     if (pent == NULL)
 411         return VLC_SUCCESS;
 412
 413     (void) varname;
 414     (void) prevkey;
 415     return var_SetInteger (obj, "key-action", (*pent)->action);
 416 }
 417
 418 /**
 419  * Adds a mapping from a certain key code to a certain action.
 420  */
 421 static int vlc_AddMapping (void **map, uint32_t keycode, vlc_action_t action)
 422 {
 423     struct mapping *entry = malloc (sizeof (*entry));
 424     if (entry == NULL)
 425         return ENOMEM;
 426     entry->key = keycode;
 427     entry->action = action;
 428
 429     struct mapping **pent = tsearch (entry, map, keycmp);
 430     if (unlikely(pent == NULL))
 431         return ENOMEM;
 432     if (*pent != entry)
 433     {
 434         free (entry);
 435         return EEXIST;
 436     }
 437     return 0;
 438 }
 439
 440 /**
 441  * Sets up all key mappings for a given action.
 442  * \param map tree (of struct mapping entries) to write mappings to
 443  * \param confname VLC configuration item to read mappings from
 444  * \param action action ID
 445  */
 446 static void vlc_InitAction (vlc_object_t *obj, void **map,
 447                             const char *confname, vlc_action_t action)
 448 {
 449     char *keys = var_InheritString (obj, confname);
 450     if (keys == NULL)
 451         return;
 452
 453     for (char *buf, *key = strtok_r (keys, "\t", &buf);
 454          key != NULL;
 455          key = strtok_r (NULL, "\t", &buf))
 456     {
 457         uint32_t code = vlc_str2keycode (key);
 458         if (code == KEY_UNSET)
 459         {
 460             msg_Warn (obj, "Key \"%s\" unrecognized", key);
 461             continue;
 462         }
 463
 464         if (vlc_AddMapping (map, code, action) == EEXIST)
 465             msg_Warn (obj, "Key \"%s\" bound to multiple actions", key);
 466     }
 467     free (keys);
 468 }
 469
 470 /**
 471  * Initializes the key map from configuration.
 472  */
 473 struct vlc_actions *vlc_InitActions (libvlc_int_t *libvlc)
 474 {
 475     vlc_object_t *obj = VLC_OBJECT(libvlc);
 476     struct hotkey *keys;
 477     struct vlc_actions *as = malloc (sizeof (*as) + ACTIONS_COUNT * sizeof (*keys));
 478
 479     if (unlikely(as == NULL))
 480         return NULL;
 481     as->map = NULL;
 482     as->global_map = NULL;
 483     keys = as->keys;
 484
 485     var_Create (obj, "key-pressed", VLC_VAR_INTEGER);
 486     var_Create (obj, "global-key-pressed", VLC_VAR_INTEGER);
 487     var_Create (obj, "key-action", VLC_VAR_INTEGER);
 488
 489     /* Initialize from configuration */
 490     for (size_t i = 0; i < ACTIONS_COUNT; i++)
 491     {
 492 #ifndef NDEBUG
 493         if (i > 0
 494          && strcmp (actions[i-1].name, actions[i].name) >= 0)
 495         {
 496             msg_Err (libvlc, "key-%s and key-%s are not ordered properly",
 497                      actions[i-1].name, actions[i].name);
 498             abort ();
 499         }
 500 #endif
 501         keys->psz_action = actions[i].name;
 502         keys++;
 503
 504         char name[12 + MAXACTION];
 505
 506         snprintf (name, sizeof (name), "global-key-%s", actions[i].name);
 507         vlc_InitAction (obj, &as->map, name + 7, actions[i].value);
 508         vlc_InitAction (obj, &as->global_map, name, actions[i].value);
 509     }
 510     keys->psz_action = NULL;
 511
 512     /* Initialize mouse wheel events */
 513     int mousemode = var_InheritInteger (obj, "hotkeys-mousewheel-mode");
 514     if (mousemode < 2)
 515     {
 516         vlc_AddMapping (&as->map,
 517                         mousemode ? KEY_MOUSEWHEELRIGHT : KEY_MOUSEWHEELUP,
 518                         ACTIONID_VOL_UP);
 519         vlc_AddMapping (&as->map,
 520                         mousemode ? KEY_MOUSEWHEELLEFT : KEY_MOUSEWHEELDOWN,
 521                         ACTIONID_VOL_DOWN);
 522         vlc_AddMapping (&as->map,
 523                         mousemode ? KEY_MOUSEWHEELUP : KEY_MOUSEWHEELRIGHT,
 524                         ACTIONID_JUMP_FORWARD_EXTRASHORT);
 525         vlc_AddMapping (&as->map,
 526                         mousemode ? KEY_MOUSEWHEELDOWN : KEY_MOUSEWHEELLEFT,
 527                         ACTIONID_JUMP_BACKWARD_EXTRASHORT);
 528     }
 529
 530
 531     libvlc->p_hotkeys = as->keys;
 532     var_AddCallback (obj, "key-pressed", vlc_key_to_action, &as->map);
 533     var_AddCallback (obj, "global-key-pressed", vlc_key_to_action,
 534                      &as->global_map);
 535     return as;
 536 }
 537
 538 /**
 539  * Destroys the key map.
 540  */
 541 void vlc_DeinitActions (libvlc_int_t *libvlc, struct vlc_actions *as)
 542 {
 543     if (unlikely(as == NULL))
 544         return;
 545
 546     var_DelCallback (libvlc, "global-key-pressed", vlc_key_to_action,
 547                      &as->global_map);
 548     var_DelCallback (libvlc, "key-pressed", vlc_key_to_action, &as->map);
 549
 550     tdestroy (as->global_map, free);
 551     tdestroy (as->map, free);
 552     free (as);
 553     libvlc->p_hotkeys = NULL;
 554 }
 555
 556
 557 static int actcmp(const void *key, const void *ent)
 558 {
 559     const struct action *act = ent;
 560     return strcmp(key, act->name);
 561 }
 562
 563 /**
 564  * Get the action ID from the action name in the configuration subsystem.
 565  * @return the action ID or ACTIONID_NONE on error.
 566  */
 567 vlc_action_t vlc_GetActionId (const char *name)
 568 {
 569     const struct action *act;
 570
 571     if (strncmp (name, "key-", 4))
 572         return ACTIONID_NONE;
 573     name += 4;
 574
 575     act = bsearch(name, actions, ACTIONS_COUNT, sizeof(*act), actcmp);
 576     return (act != NULL) ? act->value : ACTIONID_NONE;
 577 }