From b9c6cb17162c7703f1e7565e753c37ea6bfe5926 Mon Sep 17 00:00:00 2001
From: sf-exg <sf-exg>
Date: Tue, 17 Mar 2015 09:23:08 +0000
Subject: Add perl method to lookup the action bound to a key combination.

---
 src/keyboard.h | 87 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 src/keyboard.h

diff --git a/src/keyboard.h b/src/keyboard.h
new file mode 100644
index 0000000..6f357db
--- /dev/null
+++ b/src/keyboard.h
@@ -0,0 +1,87 @@
+/*----------------------------------------------------------------------*
+ * File:	keyboard.h
+ *----------------------------------------------------------------------*
+ *
+ * All portions of code are copyright by their respective author/s.
+ * Copyright (c) 2005      WU Fengguang
+ * Copyright (c) 2005-2006 Marc Lehmann <schmorp@schmorp.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *----------------------------------------------------------------------*/
+
+#ifndef KEYBOARD_H_
+#define KEYBOARD_H_
+
+#ifdef KEYSYM_RESOURCE
+
+#include <inttypes.h>
+
+#include "rxvtutil.h"
+
+#define KEYSYM_HASH_BITS        4       /* lowest #bits of keysym is used as hash key */
+#define KEYSYM_HASH_BUCKETS     (1 << KEYSYM_HASH_BITS)
+#define KEYSYM_HASH_MASK        (KEYSYM_HASH_BUCKETS - 1)
+
+#define MetaMask                0x0100
+#define NumLockMask             0x0200
+#define AppKeypadMask           0x0400
+#define Level3Mask              0x0800 // currently not supported
+#define OtherModMask            (ShiftMask | LockMask | ControlMask \
+                                | Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask)
+
+#if OtherModMask > 0xff
+# error FATAL: X modifiers might clash with rxvt-unicode ones
+#endif
+
+struct rxvt_term;
+
+struct keysym_t
+{
+  enum keysym_type {
+    STRING, BUILTIN, BUILTIN_STRING,
+  };
+
+  KeySym      keysym;
+  /* only the lower 8 bits of state are used for matching according to X.h */
+  /* the higher bits are preserved for Meta/NumLock keys */
+  /* which are mapped to corresponding lower bits at register time */
+  uint16_t    state;    /* indicates each modifiers' DOWN/UP status         */
+  keysym_type type;
+  char        *str;      /* the key's definition encoded in UTF-8 */
+};
+
+class keyboard_manager
+{
+public:
+  keyboard_manager ();
+  ~keyboard_manager ();
+
+  void unregister_action (KeySym keysym, unsigned int state);
+  void register_action (KeySym keysym, unsigned int state, const wchar_t *ws);
+  void register_done ();        // call this to make newly registered key bindings take effect
+  keysym_t *lookup_keysym (rxvt_term *term, KeySym keysym, unsigned int state);
+  bool dispatch (rxvt_term *term, KeySym keysym, unsigned int state, const char *kbuf, int len);
+
+private:
+  int find_keysym (KeySym keysym, unsigned int state);
+
+private:
+  uint16_t hash[KEYSYM_HASH_BUCKETS];
+  vector<keysym_t *> keymap;
+};
+
+#endif /* KEYSYM_RESOURCE */
+
+#endif /* KEYBOARD_H_ */
-- 
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