diff options
Diffstat (limited to 'xorg-server/xkb/ddxLoad.c')
| -rw-r--r-- | xorg-server/xkb/ddxLoad.c | 244 |
1 files changed, 189 insertions, 55 deletions
diff --git a/xorg-server/xkb/ddxLoad.c b/xorg-server/xkb/ddxLoad.c index f458e3bde..1dc0e4eee 100644 --- a/xorg-server/xkb/ddxLoad.c +++ b/xorg-server/xkb/ddxLoad.c @@ -68,6 +68,9 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE. #define PATHSEPARATOR "/" #endif +static unsigned +LoadXKM(unsigned want, unsigned need, const char *keymap, XkbDescPtr *xkbRtrn); + static void OutputDirectory(char *outdir, size_t size) { @@ -90,11 +93,17 @@ OutputDirectory(char *outdir, size_t size) } } -static Bool -XkbDDXCompileKeymapByNames(XkbDescPtr xkb, - XkbComponentNamesPtr names, - unsigned want, - unsigned need, char *nameRtrn, int nameRtrnLen) +/** + * Callback invoked by XkbRunXkbComp. Write to out to talk to xkbcomp. + */ +typedef void (*xkbcomp_buffer_callback)(FILE *out, void *userdata); + +/** + * Start xkbcomp, let the callback write into xkbcomp's stdin. When done, + * return a strdup'd copy of the file name we've written to. + */ +static char * +RunXkbComp(xkbcomp_buffer_callback callback, void *userdata) { FILE *out; char *buf = NULL, keymap[PATH_MAX], xkm_output_dir[PATH_MAX]; @@ -155,7 +164,7 @@ XkbDDXCompileKeymapByNames(XkbDescPtr xkb, if (!buf) { LogMessage(X_ERROR, "XKB: Could not invoke xkbcomp: not enough memory\n"); - return FALSE; + return NULL; } #ifndef WIN32 @@ -165,13 +174,9 @@ XkbDDXCompileKeymapByNames(XkbDescPtr xkb, #endif if (out != NULL) { -#ifdef DEBUG - if (xkbDebugFlags) { - ErrorF("[xkb] XkbDDXCompileKeymapByNames compiling keymap:\n"); - XkbWriteXKBKeymapForNames(stderr, names, xkb, want, need); - } -#endif - XkbWriteXKBKeymapForNames(out, names, xkb, want, need); + /* Now write to xkbcomp */ + (*callback)(out, userdata); + #ifndef WIN32 if (Pclose(out) == 0) #else @@ -180,14 +185,11 @@ XkbDDXCompileKeymapByNames(XkbDescPtr xkb, { if (xkbDebugFlags) DebugF("[xkb] xkb executes: %s\n", buf); - if (nameRtrn) { - strlcpy(nameRtrn, keymap, nameRtrnLen); - } free(buf); #ifdef WIN32 unlink(tmpname); #endif - return TRUE; + return xnfstrdup(keymap); } else LogMessage(X_ERROR, "Error compiling keymap (%s)\n", keymap); @@ -203,14 +205,101 @@ XkbDDXCompileKeymapByNames(XkbDescPtr xkb, LogMessage(X_ERROR, "Could not open file %s\n", tmpname); #endif } - if (nameRtrn) - nameRtrn[0] = '\0'; free(buf); - return FALSE; + return NULL; +} + +typedef struct { + XkbDescPtr xkb; + XkbComponentNamesPtr names; + unsigned int want; + unsigned int need; +} XkbKeymapNamesCtx; + +static void +xkb_write_keymap_for_names_cb(FILE *out, void *userdata) +{ + XkbKeymapNamesCtx *ctx = userdata; +#ifdef DEBUG + if (xkbDebugFlags) { + ErrorF("[xkb] XkbDDXCompileKeymapByNames compiling keymap:\n"); + XkbWriteXKBKeymapForNames(stderr, ctx->names, ctx->xkb, ctx->want, ctx->need); + } +#endif + XkbWriteXKBKeymapForNames(out, ctx->names, ctx->xkb, ctx->want, ctx->need); +} + +static Bool +XkbDDXCompileKeymapByNames(XkbDescPtr xkb, + XkbComponentNamesPtr names, + unsigned want, + unsigned need, char *nameRtrn, int nameRtrnLen) +{ + char *keymap; + Bool rc = FALSE; + XkbKeymapNamesCtx ctx = { + .xkb = xkb, + .names = names, + .want = want, + .need = need + }; + + keymap = RunXkbComp(xkb_write_keymap_for_names_cb, &ctx); + + if (keymap) { + if(nameRtrn) + strlcpy(nameRtrn, keymap, nameRtrnLen); + + free(keymap); + rc = TRUE; + } else if (nameRtrn) + *nameRtrn = '\0'; + + return rc; +} + +typedef struct { + const char *keymap; + size_t len; +} XkbKeymapString; + +static void +xkb_write_keymap_string_cb(FILE *out, void *userdata) +{ + XkbKeymapString *s = userdata; + fwrite(s->keymap, s->len, 1, out); +} + +static unsigned int +XkbDDXLoadKeymapFromString(DeviceIntPtr keybd, + const char *keymap, int keymap_length, + unsigned int want, + unsigned int need, + XkbDescPtr *xkbRtrn) +{ + unsigned int have; + char *map_name; + XkbKeymapString map = { + .keymap = keymap, + .len = keymap_length + }; + + *xkbRtrn = NULL; + + map_name = RunXkbComp(xkb_write_keymap_string_cb, &map); + if (!map_name) { + LogMessage(X_ERROR, "XKB: Couldn't compile keymap\n"); + return 0; + } + + have = LoadXKM(want, need, map_name, xkbRtrn); + free(map_name); + + return have; } static FILE * -XkbDDXOpenConfigFile(char *mapName, char *fileNameRtrn, int fileNameRtrnLen) +XkbDDXOpenConfigFile(const char *mapName, char *fileNameRtrn, int fileNameRtrnLen) { char buf[PATH_MAX], xkm_output_dir[PATH_MAX]; FILE *file; @@ -245,6 +334,35 @@ XkbDDXOpenConfigFile(char *mapName, char *fileNameRtrn, int fileNameRtrnLen) return file; } +static unsigned +LoadXKM(unsigned want, unsigned need, const char *keymap, XkbDescPtr *xkbRtrn) +{ + FILE *file; + char fileName[PATH_MAX]; + unsigned missing; + + file = XkbDDXOpenConfigFile(keymap, fileName, PATH_MAX); + if (file == NULL) { + LogMessage(X_ERROR, "Couldn't open compiled keymap file %s\n", + fileName); + return 0; + } + missing = XkmReadFile(file, need, want, xkbRtrn); + if (*xkbRtrn == NULL) { + LogMessage(X_ERROR, "Error loading keymap %s\n", fileName); + fclose(file); + (void) unlink(fileName); + return 0; + } + else { + DebugF("Loaded XKB keymap %s, defined=0x%x\n", fileName, + (*xkbRtrn)->defined); + } + fclose(file); + (void) unlink(fileName); + return (need | want) & (~missing); +} + unsigned XkbDDXLoadKeymapByNames(DeviceIntPtr keybd, XkbComponentNamesPtr names, @@ -253,9 +371,6 @@ XkbDDXLoadKeymapByNames(DeviceIntPtr keybd, XkbDescPtr *xkbRtrn, char *nameRtrn, int nameRtrnLen) { XkbDescPtr xkb; - FILE *file; - char fileName[PATH_MAX]; - unsigned missing; *xkbRtrn = NULL; if ((keybd == NULL) || (keybd->key == NULL) || @@ -275,26 +390,8 @@ XkbDDXLoadKeymapByNames(DeviceIntPtr keybd, LogMessage(X_ERROR, "XKB: Couldn't compile keymap\n"); return 0; } - file = XkbDDXOpenConfigFile(nameRtrn, fileName, PATH_MAX); - if (file == NULL) { - LogMessage(X_ERROR, "Couldn't open compiled keymap file %s\n", - fileName); - return 0; - } - missing = XkmReadFile(file, need, want, xkbRtrn); - if (*xkbRtrn == NULL) { - LogMessage(X_ERROR, "Error loading keymap %s\n", fileName); - fclose(file); - (void) unlink(fileName); - return 0; - } - else { - DebugF("Loaded XKB keymap %s, defined=0x%x\n", fileName, - (*xkbRtrn)->defined); - } - fclose(file); - (void) unlink(fileName); - return (need | want) & (~missing); + + return LoadXKM(want, need, nameRtrn, xkbRtrn); } Bool @@ -390,6 +487,29 @@ XkbCompileKeymapForDevice(DeviceIntPtr dev, XkbRMLVOSet * rmlvo, int need) return xkb; } +static XkbDescPtr +KeymapOrDefaults(DeviceIntPtr dev, XkbDescPtr xkb) +{ + XkbRMLVOSet dflts; + + if (xkb) + return xkb; + + /* we didn't get what we really needed. And that will likely leave + * us with a keyboard that doesn't work. Use the defaults instead */ + LogMessage(X_ERROR, "XKB: Failed to load keymap. Loading default " + "keymap instead.\n"); + + XkbGetRulesDflts(&dflts); + + xkb = XkbCompileKeymapForDevice(dev, &dflts, 0); + + XkbFreeRMLVOSet(&dflts, FALSE); + + return xkb; +} + + XkbDescPtr XkbCompileKeymap(DeviceIntPtr dev, XkbRMLVOSet * rmlvo) { @@ -407,20 +527,34 @@ XkbCompileKeymap(DeviceIntPtr dev, XkbRMLVOSet * rmlvo) xkb = XkbCompileKeymapForDevice(dev, rmlvo, need); - if (!xkb) { - XkbRMLVOSet dflts; - - /* we didn't get what we really needed. And that will likely leave - * us with a keyboard that doesn't work. Use the defaults instead */ - LogMessage(X_ERROR, "XKB: Failed to load keymap. Loading default " - "keymap instead.\n"); + return KeymapOrDefaults(dev, xkb); +} - XkbGetRulesDflts(&dflts); +XkbDescPtr +XkbCompileKeymapFromString(DeviceIntPtr dev, + const char *keymap, int keymap_length) +{ + XkbDescPtr xkb; + unsigned int need, provided; - xkb = XkbCompileKeymapForDevice(dev, &dflts, 0); + if (!dev || !keymap) { + LogMessage(X_ERROR, "XKB: No device or keymap specified\n"); + return NULL; + } - XkbFreeRMLVOSet(&dflts, FALSE); + /* These are the components we really really need */ + need = XkmSymbolsMask | XkmCompatMapMask | XkmTypesMask | + XkmKeyNamesMask | XkmVirtualModsMask; + + provided = + XkbDDXLoadKeymapFromString(dev, keymap, keymap_length, + XkmAllIndicesMask, need, &xkb); + if ((need & provided) != need) { + if (xkb) { + XkbFreeKeyboard(xkb, 0, TRUE); + xkb = NULL; + } } - return xkb; + return KeymapOrDefaults(dev, xkb); } |