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_("Right"),             KEY_RIGHT             },
 112     { N_("Space"),             ' '                   },
 113     { N_("Tab"),               KEY_TAB               },
 114     { N_("Unset"),             KEY_UNSET             },
 115     { N_("Up"),                KEY_UP                },
 116     { N_("Volume Down"),       KEY_VOLUME_DOWN       },
 117     { N_("Volume Mute"),       KEY_VOLUME_MUTE       },
 118     { N_("Volume Up"),         KEY_VOLUME_UP         },
 119     { N_("Zoom In"),           KEY_ZOOM_IN           },
 120     { N_("Zoom Out"),          KEY_ZOOM_OUT          },
 121 };
 122 #define KEYS_COUNT (sizeof(vlc_keys)/sizeof(vlc_keys[0]))
 123
 124 static int keystrcmp (const void *key, const void *elem)
 125 {
 126     const char *sa = key, *sb = elem;
 127     return strcmp (sa, sb);
 128 }
 129
 130 /* Convert Unicode code point to UTF-8 */
 131 static char *utf8_cp (uint_fast32_t cp, char *buf)
 132 {
 133     if (cp < (1 << 7))
 134     {
 135         buf[1] = 0;
 136         buf[0] = cp;
 137     }
 138     else if (cp < (1 << 11))
 139     {
 140         buf[2] = 0;
 141         buf[1] = 0x80 | (cp & 0x3F);
 142         cp >>= 6;
 143         buf[0] = 0xC0 | cp;
 144     }
 145     else if (cp < (1 << 16))
 146     {
 147         buf[3] = 0;
 148         buf[2] = 0x80 | (cp & 0x3F);
 149         cp >>= 6;
 150         buf[1] = 0x80 | (cp & 0x3F);
 151         cp >>= 6;
 152         buf[0] = 0xE0 | cp;
 153     }
 154     else if (cp < (1 << 21))
 155     {
 156         buf[4] = 0;
 157         buf[3] = 0x80 | (cp & 0x3F);
 158         cp >>= 6;
 159         buf[2] = 0x80 | (cp & 0x3F);
 160         cp >>= 6;
 161         buf[1] = 0x80 | (cp & 0x3F);
 162         cp >>= 6;
 163         buf[0] = 0xE0 | cp;
 164     }
 165     else
 166         return NULL;
 167     return buf;
 168 }
 169
 170 /**
 171  * Parse a human-readable string representation of a VLC key code.
 172  * @note This only works with the American English representation
 173  * (a.k.a. C or POSIX), not with the local representation returned from
 174  * vlc_keycode2str().
 175  * @return a VLC key code, or KEY_UNSET on failure.
 176  */
 177 uint_fast32_t vlc_str2keycode (const char *name)
 178 {
 179     uint_fast32_t mods = 0;
 180     uint32_t code;
 181
 182     for (;;)
 183     {
 184         size_t len = strcspn (name, "-+");
 185         if (len == 0 || name[len] == '\0')
 186             break;
 187
 188         if (len == 4 && !strncasecmp (name, "Ctrl", 4))
 189             mods |= KEY_MODIFIER_CTRL;
 190         if (len == 3 && !strncasecmp (name, "Alt", 3))
 191             mods |= KEY_MODIFIER_ALT;
 192         if (len == 5 && !strncasecmp (name, "Shift", 5))
 193             mods |= KEY_MODIFIER_SHIFT;
 194         if (len == 4 && !strncasecmp (name, "Meta", 4))
 195             mods |= KEY_MODIFIER_META;
 196         if (len == 7 && !strncasecmp (name, "Command", 7))
 197             mods |= KEY_MODIFIER_COMMAND;
 198
 199         name += len + 1;
 200     }
 201
 202     key_descriptor_t *d = bsearch (name, vlc_keys, KEYS_COUNT,
 203                                    sizeof (vlc_keys[0]), keystrcmp);
 204     if (d != NULL)
 205         code = d->i_key_code;
 206     else
 207     if (vlc_towc (name, &code) <= 0)
 208         code = KEY_UNSET;
 209
 210     if (code != KEY_UNSET)
 211         code |= mods;
 212     return code;
 213 }
 214
 215 static char *nooptext (const char *txt)
 216 {
 217     return (char *)txt;
 218 }
 219
 220 /**
 221  * Format a human-readable and unique representation of a VLC key code
 222  * (including modifiers).
 223  * @param code key code to translate to a string
 224  * @param locale true to get a localized string,
 225  *               false to get a C string suitable for 'vlcrc'
 226  * @return a heap-allocated string, or NULL on error.
 227  */
 228 char *vlc_keycode2str (uint_fast32_t code, bool locale)
 229 {
 230     char *(*tr) (const char *) = locale ? vlc_gettext : nooptext;
 231     const char *name;
 232     char *str, buf[5];
 233     uintptr_t key = code & ~KEY_MODIFIER;
 234
 235     for (size_t i = 0; i < KEYS_COUNT; i++)
 236         if (vlc_keys[i].i_key_code == key)
 237         {
 238             name = vlc_keys[i].psz_key_string;
 239             goto found;
 240         }
 241
 242     if (utf8_cp (key, buf) == NULL)
 243         return NULL;
 244     name = buf;
 245
 246 found:
 247     if (asprintf (&str, "%s%s%s%s%s%s",
 248                   (code & KEY_MODIFIER_CTRL) ? tr(N_("Ctrl+")) : "",
 249                   (code & KEY_MODIFIER_ALT) ? tr(N_("Alt+")) : "",
 250                   (code & KEY_MODIFIER_SHIFT) ? tr(N_("Shift+")) : "",
 251                   (code & KEY_MODIFIER_META) ? tr(N_("Meta+")) : "",
 252                   (code & KEY_MODIFIER_COMMAND) ? tr(N_("Command+")) : "",
 253                   tr(name)) == -1)
 254         return NULL;
 255     return str;
 256 }
 257
 258
 259 /*** VLC key map ***/
 260
 261 #define MAXACTION 20
 262 struct action
 263 {
 264     char name[MAXACTION];
 265     vlc_action_t value;
 266 };
 267
 268 static const struct action actions[] =
 269 {
 270     /* *MUST* be sorted (ASCII order) */
 271     { "aspect-ratio", ACTIONID_ASPECT_RATIO, },
 272     { "audio-track", ACTIONID_AUDIO_TRACK, },
 273     { "audiodelay-down", ACTIONID_AUDIODELAY_DOWN, },
 274     { "audiodelay-up", ACTIONID_AUDIODELAY_UP, },
 275     { "audiodevice-cycle", ACTIONID_AUDIODEVICE_CYCLE, },
 276     { "chapter-next", ACTIONID_CHAPTER_NEXT, },
 277     { "chapter-prev", ACTIONID_CHAPTER_PREV, },
 278     { "clear-playlist", ACTIONID_PLAY_CLEAR, },
 279     { "crop", ACTIONID_CROP, },
 280     { "crop-bottom", ACTIONID_CROP_BOTTOM, },
 281     { "crop-left", ACTIONID_CROP_LEFT, },
 282     { "crop-right", ACTIONID_CROP_RIGHT, },
 283     { "crop-top", ACTIONID_CROP_TOP, },
 284     { "decr-scalefactor", ACTIONID_SCALE_DOWN, },
 285     { "deinterlace", ACTIONID_DEINTERLACE, },
 286     { "deinterlace-mode", ACTIONID_DEINTERLACE_MODE, },
 287     { "disc-menu", ACTIONID_DISC_MENU, },
 288     { "faster", ACTIONID_FASTER, },
 289     { "frame-next", ACTIONID_FRAME_NEXT, },
 290     { "incr-scalefactor", ACTIONID_SCALE_UP, },
 291     { "intf-boss", ACTIONID_INTF_BOSS, },
 292     { "intf-popup-menu", ACTIONID_INTF_POPUP_MENU, },
 293     { "intf-show", ACTIONID_INTF_TOGGLE_FSC, },
 294     { "jump+extrashort", ACTIONID_JUMP_FORWARD_EXTRASHORT, },
 295     { "jump+long", ACTIONID_JUMP_FORWARD_LONG, },
 296     { "jump+medium", ACTIONID_JUMP_FORWARD_MEDIUM, },
 297     { "jump+short", ACTIONID_JUMP_FORWARD_SHORT, },
 298     { "jump-extrashort", ACTIONID_JUMP_BACKWARD_EXTRASHORT, },
 299     { "jump-long", ACTIONID_JUMP_BACKWARD_LONG, },
 300     { "jump-medium", ACTIONID_JUMP_BACKWARD_MEDIUM, },
 301     { "jump-short", ACTIONID_JUMP_BACKWARD_SHORT, },
 302     { "leave-fullscreen", ACTIONID_LEAVE_FULLSCREEN, },
 303     { "loop", ACTIONID_LOOP, },
 304     { "nav-activate", ACTIONID_NAV_ACTIVATE, },
 305     { "nav-down", ACTIONID_NAV_DOWN, },
 306     { "nav-left", ACTIONID_NAV_LEFT, },
 307     { "nav-right", ACTIONID_NAV_RIGHT, },
 308     { "nav-up", ACTIONID_NAV_UP, },
 309     { "next", ACTIONID_NEXT, },
 310     { "pause", ACTIONID_PAUSE, },
 311     { "play", ACTIONID_PLAY, },
 312     { "play-bookmark1", ACTIONID_PLAY_BOOKMARK1, },
 313     { "play-bookmark10", ACTIONID_PLAY_BOOKMARK10, },
 314     { "play-bookmark2", ACTIONID_PLAY_BOOKMARK2, },
 315     { "play-bookmark3", ACTIONID_PLAY_BOOKMARK3, },
 316     { "play-bookmark4", ACTIONID_PLAY_BOOKMARK4, },
 317     { "play-bookmark5", ACTIONID_PLAY_BOOKMARK5, },
 318     { "play-bookmark6", ACTIONID_PLAY_BOOKMARK6, },
 319     { "play-bookmark7", ACTIONID_PLAY_BOOKMARK7, },
 320     { "play-bookmark8", ACTIONID_PLAY_BOOKMARK8, },
 321     { "play-bookmark9", ACTIONID_PLAY_BOOKMARK9, },
 322     { "play-pause", ACTIONID_PLAY_PAUSE, },
 323     { "position", ACTIONID_POSITION, },
 324     { "prev", ACTIONID_PREV, },
 325     { "program-sid-next", ACTIONID_PROGRAM_SID_NEXT, },
 326     { "program-sid-prev", ACTIONID_PROGRAM_SID_PREV, },
 327     { "quit", ACTIONID_QUIT, },
 328     { "random", ACTIONID_RANDOM, },
 329     { "rate-faster-fine", ACTIONID_RATE_FASTER_FINE, },
 330     { "rate-normal", ACTIONID_RATE_NORMAL, },
 331     { "rate-slower-fine", ACTIONID_RATE_SLOWER_FINE, },
 332     { "record", ACTIONID_RECORD, },
 333     { "set-bookmark1", ACTIONID_SET_BOOKMARK1, },
 334     { "set-bookmark10", ACTIONID_SET_BOOKMARK10, },
 335     { "set-bookmark2", ACTIONID_SET_BOOKMARK2, },
 336     { "set-bookmark3", ACTIONID_SET_BOOKMARK3, },
 337     { "set-bookmark4", ACTIONID_SET_BOOKMARK4, },
 338     { "set-bookmark5", ACTIONID_SET_BOOKMARK5, },
 339     { "set-bookmark6", ACTIONID_SET_BOOKMARK6, },
 340     { "set-bookmark7", ACTIONID_SET_BOOKMARK7, },
 341     { "set-bookmark8", ACTIONID_SET_BOOKMARK8, },
 342     { "set-bookmark9", ACTIONID_SET_BOOKMARK9, },
 343     { "slower", ACTIONID_SLOWER, },
 344     { "snapshot", ACTIONID_SNAPSHOT, },
 345     { "stop", ACTIONID_STOP, },
 346     { "subdelay-down", ACTIONID_SUBDELAY_DOWN, },
 347     { "subdelay-up", ACTIONID_SUBDELAY_UP, },
 348     { "subpos-down", ACTIONID_SUBPOS_DOWN, },
 349     { "subpos-up", ACTIONID_SUBPOS_UP, },
 350     { "subsync-apply", ACTIONID_SUBSYNC_APPLY, },
 351     { "subsync-markaudio", ACTIONID_SUBSYNC_MARKAUDIO, },
 352     { "subsync-marksub", ACTIONID_SUBSYNC_MARKSUB, },
 353     { "subsync-reset", ACTIONID_SUBSYNC_RESET, },
 354     { "subtitle-track", ACTIONID_SUBTITLE_TRACK, },
 355     { "title-next", ACTIONID_TITLE_NEXT, },
 356     { "title-prev", ACTIONID_TITLE_PREV, },
 357     { "toggle-autoscale", ACTIONID_TOGGLE_AUTOSCALE, },
 358     { "toggle-fullscreen", ACTIONID_TOGGLE_FULLSCREEN, },
 359     { "uncrop-bottom", ACTIONID_UNCROP_BOTTOM, },
 360     { "uncrop-left", ACTIONID_UNCROP_LEFT, },
 361     { "uncrop-right", ACTIONID_UNCROP_RIGHT, },
 362     { "uncrop-top", ACTIONID_UNCROP_TOP, },
 363     { "unzoom", ACTIONID_UNZOOM, },
 364     { "vol-down", ACTIONID_VOL_DOWN, },
 365     { "vol-mute", ACTIONID_VOL_MUTE, },
 366     { "vol-up", ACTIONID_VOL_UP, },
 367     { "wallpaper", ACTIONID_WALLPAPER, },
 368     { "zoom", ACTIONID_ZOOM, },
 369     { "zoom-double", ACTIONID_ZOOM_DOUBLE, },
 370     { "zoom-half", ACTIONID_ZOOM_HALF, },
 371     { "zoom-original", ACTIONID_ZOOM_ORIGINAL, },
 372     { "zoom-quarter", ACTIONID_ZOOM_QUARTER, },
 373 };
 374 #define ACTIONS_COUNT (sizeof (actions) / sizeof (actions[0]))
 375
 376 struct mapping
 377 {
 378     uint32_t     key; ///< Key code
 379     vlc_action_t action; ///< Action ID
 380 };
 381
 382 static int keycmp (const void *a, const void *b)
 383 {
 384     const struct mapping *ka = a, *kb = b;
 385
 386 #if (INT_MAX >= 0x7fffffff)
 387     return ka->key - kb->key;
 388 #else
 389     return (ka->key < kb->key) ? -1 : (ka->key > kb->key) ? +1 : 0;
 390 #endif
 391 }
 392
 393 struct vlc_actions
 394 {
 395     void *map; /* Key map */
 396     void *global_map; /* Grabbed/global key map */
 397     struct hotkey keys[0];
 398 };
 399
 400 static int vlc_key_to_action (vlc_object_t *obj, const char *varname,
 401                               vlc_value_t prevkey, vlc_value_t curkey, void *d)
 402 {
 403     void *const *map = d;
 404     const struct mapping **pent;
 405     uint32_t keycode = curkey.i_int;
 406
 407     pent = tfind (&keycode, map, keycmp);
 408     if (pent == NULL)
 409         return VLC_SUCCESS;
 410
 411     (void) varname;
 412     (void) prevkey;
 413     return var_SetInteger (obj, "key-action", (*pent)->action);
 414 }
 415
 416 /**
 417  * Adds a mapping from a certain key code to a certain action.
 418  */
 419 static int vlc_AddMapping (void **map, uint32_t keycode, vlc_action_t action)
 420 {
 421     struct mapping *entry = malloc (sizeof (*entry));
 422     if (entry == NULL)
 423         return ENOMEM;
 424     entry->key = keycode;
 425     entry->action = action;
 426
 427     struct mapping **pent = tsearch (entry, map, keycmp);
 428     if (unlikely(pent == NULL))
 429         return ENOMEM;
 430     if (*pent != entry)
 431     {
 432         free (entry);
 433         return EEXIST;
 434     }
 435     return 0;
 436 }
 437
 438 /**
 439  * Sets up all key mappings for a given action.
 440  * \param map tree (of struct mapping entries) to write mappings to
 441  * \param confname VLC configuration item to read mappings from
 442  * \param action action ID
 443  */
 444 static void vlc_InitAction (vlc_object_t *obj, void **map,
 445                             const char *confname, vlc_action_t action)
 446 {
 447     char *keys = var_InheritString (obj, confname);
 448     if (keys == NULL)
 449         return;
 450
 451     for (char *buf, *key = strtok_r (keys, "\t", &buf);
 452          key != NULL;
 453          key = strtok_r (NULL, "\t", &buf))
 454     {
 455         uint32_t code = vlc_str2keycode (key);
 456         if (code == KEY_UNSET)
 457         {
 458             msg_Warn (obj, "Key \"%s\" unrecognized", key);
 459             continue;
 460         }
 461
 462         if (vlc_AddMapping (map, code, action) == EEXIST)
 463             msg_Warn (obj, "Key \"%s\" bound to multiple actions", key);
 464     }
 465     free (keys);
 466 }
 467
 468 /**
 469  * Initializes the key map from configuration.
 470  */
 471 struct vlc_actions *vlc_InitActions (libvlc_int_t *libvlc)
 472 {
 473     vlc_object_t *obj = VLC_OBJECT(libvlc);
 474     struct hotkey *keys;
 475     struct vlc_actions *as = malloc (sizeof (*as) + (ACTIONS_COUNT + 1) * sizeof (*keys));
 476
 477     if (unlikely(as == NULL))
 478         return NULL;
 479     as->map = NULL;
 480     as->global_map = NULL;
 481     keys = as->keys;
 482
 483     var_Create (obj, "key-pressed", VLC_VAR_INTEGER);
 484     var_Create (obj, "global-key-pressed", VLC_VAR_INTEGER);
 485     var_Create (obj, "key-action", VLC_VAR_INTEGER);
 486
 487     /* Initialize from configuration */
 488     for (size_t i = 0; i < ACTIONS_COUNT; i++)
 489     {
 490 #ifndef NDEBUG
 491         if (i > 0
 492          && strcmp (actions[i-1].name, actions[i].name) >= 0)
 493         {
 494             msg_Err (libvlc, "key-%s and key-%s are not ordered properly",
 495                      actions[i-1].name, actions[i].name);
 496             abort ();
 497         }
 498 #endif
 499         keys->psz_action = actions[i].name;
 500         keys++;
 501
 502         char name[12 + MAXACTION];
 503
 504         snprintf (name, sizeof (name), "global-key-%s", actions[i].name);
 505         vlc_InitAction (obj, &as->map, name + 7, actions[i].value);
 506         vlc_InitAction (obj, &as->global_map, name, actions[i].value);
 507     }
 508     keys->psz_action = NULL;
 509
 510     /* Initialize mouse wheel events */
 511     int mousemode = var_InheritInteger (obj, "hotkeys-mousewheel-mode");
 512     if (mousemode < 2)
 513     {
 514         vlc_AddMapping (&as->map,
 515                         mousemode ? KEY_MOUSEWHEELRIGHT : KEY_MOUSEWHEELUP,
 516                         ACTIONID_VOL_UP);
 517         vlc_AddMapping (&as->map,
 518                         mousemode ? KEY_MOUSEWHEELLEFT : KEY_MOUSEWHEELDOWN,
 519                         ACTIONID_VOL_DOWN);
 520         vlc_AddMapping (&as->map,
 521                         mousemode ? KEY_MOUSEWHEELUP : KEY_MOUSEWHEELRIGHT,
 522                         ACTIONID_JUMP_FORWARD_EXTRASHORT);
 523         vlc_AddMapping (&as->map,
 524                         mousemode ? KEY_MOUSEWHEELDOWN : KEY_MOUSEWHEELLEFT,
 525                         ACTIONID_JUMP_BACKWARD_EXTRASHORT);
 526     }
 527
 528
 529     libvlc->p_hotkeys = as->keys;
 530     var_AddCallback (obj, "key-pressed", vlc_key_to_action, &as->map);
 531     var_AddCallback (obj, "global-key-pressed", vlc_key_to_action,
 532                      &as->global_map);
 533     return as;
 534 }
 535
 536 /**
 537  * Destroys the key map.
 538  */
 539 void vlc_DeinitActions (libvlc_int_t *libvlc, struct vlc_actions *as)
 540 {
 541     if (unlikely(as == NULL))
 542         return;
 543
 544     var_DelCallback (libvlc, "global-key-pressed", vlc_key_to_action,
 545                      &as->global_map);
 546     var_DelCallback (libvlc, "key-pressed", vlc_key_to_action, &as->map);
 547
 548     tdestroy (as->global_map, free);
 549     tdestroy (as->map, free);
 550     free (as);
 551     libvlc->p_hotkeys = NULL;
 552 }
 553
 554
 555 static int actcmp(const void *key, const void *ent)
 556 {
 557     const struct action *act = ent;
 558     return strcmp(key, act->name);
 559 }
 560
 561 /**
 562  * Get the action ID from the action name in the configuration subsystem.
 563  * @return the action ID or ACTIONID_NONE on error.
 564  */
 565 vlc_action_t vlc_GetActionId (const char *name)
 566 {
 567     const struct action *act;
 568
 569     if (strncmp (name, "key-", 4))
 570         return ACTIONID_NONE;
 571     name += 4;
 572
 573     act = bsearch(name, actions, ACTIONS_COUNT, sizeof(*act), actcmp);
 574     return (act != NULL) ? act->value : ACTIONID_NONE;
 575 }