Reduce action related IPC

[platform/upstream/at-spi2-core.git] / registryd / ucs2keysym.c

diff --git a/registryd/ucs2keysym.c b/registryd/ucs2keysym.c
index 58e418c..539685c 100644 (file)
--- a/registryd/ucs2keysym.c
+++ b/registryd/ucs2keysym.c
@@ -30,8 +30,10 @@
  * This software is in the public domain. Share and enjoy!
  *
  */
-
+#ifdef HAVE_X11
 #include <X11/X.h>
+#endif
+#include "deviceeventcontroller.h"     /* for prototype */
 
 struct codepair {
   unsigned short keysym;
@@ -793,7 +795,7 @@ struct codepair {
   { 0x0ef7, 0x318e }, /*               Hangul_AraeAE ㆎ HANGUL LETTER ARAEAE */
  };
 
-KeySym ucs2keysym (long ucs)
+long ucs2keysym (long ucs)
 {
     int min = 0;
     int max = sizeof(keysymtab) / sizeof(struct codepair) - 1;
@@ -821,3 +823,34 @@ KeySym ucs2keysym (long ucs)
     return ucs | 0x01000000;
 }
 
+long keysym2ucs(long keysym)
+{
+    int min = 0;
+    int max = sizeof(keysymtab) / sizeof(struct codepair) - 1;
+    int mid;
+
+    /* first check for Latin-1 characters (1:1 mapping) */
+    if ((keysym >= 0x0020 && keysym <= 0x007e) ||
+        (keysym >= 0x00a0 && keysym <= 0x00ff))
+        return (long) keysym;
+
+    /* also check for directly encoded 24-bit UCS characters */
+    if ((keysym & 0xff000000) == 0x01000000)
+       return keysym & 0x00ffffff;
+
+    /* binary search in table */
+    while (max >= min) {
+       mid = (min + max) / 2;
+       if (keysymtab[mid].keysym < keysym)
+           min = mid + 1;
+       else if (keysymtab[mid].keysym > keysym)
+           max = mid - 1;
+       else {
+           /* found it */
+           return keysymtab[mid].ucs;
+       }
+    }
+
+    /* no matching Unicode value found */
+    return -1;
+}