--- /dev/null
+/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
+
+ obt/keyboard.c for the Openbox window manager
+ Copyright (c) 2007 Dana Jansens
+
+ 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 2 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.
+
+ See the COPYING file for a copy of the GNU General Public License.
+*/
+
+#include "obt/display.h"
+#include "obt/keyboard.h"
+
+#include <X11/Xlib.h>
+#include <X11/keysym.h>
+
+/* These masks are constants and the modifier keys are bound to them as
+ anyone sees fit:
+ ShiftMask (1<<0), LockMask (1<<1), ControlMask (1<<2), Mod1Mask (1<<3),
+ Mod2Mask (1<<4), Mod3Mask (1<<5), Mod4Mask (1<<6), Mod5Mask (1<<7)
+*/
+#define NUM_MASKS 8
+#define ALL_MASKS 0xff /* an or'ing of all 8 keyboard masks */
+
+/* Get the bitflag for the n'th modifier mask */
+#define nth_mask(n) (1 << n)
+
+static void set_modkey_mask(guchar mask, KeySym sym);
+void obt_keyboard_shutdown();
+
+static XModifierKeymap *modmap;
+static KeySym *keymap;
+static gint min_keycode, max_keycode, keysyms_per_keycode;
+/* This is a bitmask of the different masks for each modifier key */
+static guchar modkeys_keys[OBT_MODKEY_NUM_KEYS];
+
+static gboolean alt_l = FALSE;
+static gboolean meta_l = FALSE;
+static gboolean super_l = FALSE;
+static gboolean hyper_l = FALSE;
+
+static gboolean started = FALSE;
+
+void obt_keyboard_reload()
+{
+ gint i, j, k;
+
+ if (started) obt_keyboard_shutdown(); /* free stuff */
+ started = TRUE;
+
+ /* reset the keys to not be bound to any masks */
+ for (i = 0; i < OBT_MODKEY_NUM_KEYS; ++i)
+ modkeys_keys[i] = 0;
+
+ modmap = XGetModifierMapping(obt_display);
+ g_assert(modmap->max_keypermod > 0);
+
+ XDisplayKeycodes(obt_display, &min_keycode, &max_keycode);
+ keymap = XGetKeyboardMapping(obt_display, min_keycode,
+ max_keycode - min_keycode + 1,
+ &keysyms_per_keycode);
+
+ alt_l = meta_l = super_l = hyper_l = FALSE;
+
+ /* go through each of the modifier masks (eg ShiftMask, CapsMask...) */
+ for (i = 0; i < NUM_MASKS; ++i) {
+ /* go through each keycode that is bound to the mask */
+ for (j = 0; j < modmap->max_keypermod; ++j) {
+ KeySym sym;
+ /* get a keycode that is bound to the mask (i) */
+ KeyCode keycode = modmap->modifiermap[i*modmap->max_keypermod + j];
+ if (keycode) {
+ /* go through each keysym bound to the given keycode */
+ for (k = 0; k < keysyms_per_keycode; ++k) {
+ sym = keymap[(keycode-min_keycode) * keysyms_per_keycode +
+ k];
+ if (sym != NoSymbol) {
+ /* bind the key to the mask (e.g. Alt_L => Mod1Mask) */
+ set_modkey_mask(nth_mask(i), sym);
+ }
+ }
+ }
+ }
+ }
+
+ /* CapsLock, Shift, and Control are special and hard-coded */
+ modkeys_keys[OBT_MODKEY_KEY_CAPSLOCK] = LockMask;
+ modkeys_keys[OBT_MODKEY_KEY_SHIFT] = ShiftMask;
+ modkeys_keys[OBT_MODKEY_KEY_CONTROL] = ControlMask;
+}
+
+void obt_keyboard_shutdown()
+{
+ XFreeModifiermap(modmap);
+ modmap = NULL;
+ XFree(keymap);
+ keymap = NULL;
+ started = FALSE;
+}
+
+guint obt_keyboard_keycode_to_modmask(guint keycode)
+{
+ gint i, j;
+ guint mask = 0;
+
+ if (keycode == NoSymbol) return 0;
+
+ /* go through each of the modifier masks (eg ShiftMask, CapsMask...) */
+ for (i = 0; i < NUM_MASKS; ++i) {
+ /* go through each keycode that is bound to the mask */
+ for (j = 0; j < modmap->max_keypermod; ++j) {
+ /* compare with a keycode that is bound to the mask (i) */
+ if (modmap->modifiermap[i*modmap->max_keypermod + j] == keycode)
+ mask |= nth_mask(i);
+ }
+ }
+ return mask;
+}
+
+guint obt_keyboard_only_modmasks(guint mask)
+{
+ mask &= ALL_MASKS;
+ /* strip off these lock keys. they shouldn't affect key bindings */
+ mask &= ~LockMask; /* use the LockMask, not what capslock is bound to,
+ because you could bind it to something else and it
+ should work as that modifier then. i think capslock
+ is weird in xkb. */
+ mask &= ~obt_keyboard_modkey_to_modmask(OBT_MODKEY_KEY_NUMLOCK);
+ mask &= ~obt_keyboard_modkey_to_modmask(OBT_MODKEY_KEY_SCROLLLOCK);
+ return mask;
+}
+
+guint obt_keyboard_modkey_to_modmask(ObtModkeysKey key)
+{
+ return modkeys_keys[key];
+}
+
+static void set_modkey_mask(guchar mask, KeySym sym)
+{
+ /* find what key this is, and bind it to the mask */
+
+ if (sym == XK_Num_Lock)
+ modkeys_keys[OBT_MODKEY_KEY_NUMLOCK] |= mask;
+ else if (sym == XK_Scroll_Lock)
+ modkeys_keys[OBT_MODKEY_KEY_SCROLLLOCK] |= mask;
+
+ else if (sym == XK_Super_L && super_l)
+ modkeys_keys[OBT_MODKEY_KEY_SUPER] |= mask;
+ else if (sym == XK_Super_L && !super_l)
+ /* left takes precident over right, so erase any masks the right
+ key may have set */
+ modkeys_keys[OBT_MODKEY_KEY_SUPER] = mask, super_l = TRUE;
+ else if (sym == XK_Super_R && !super_l)
+ modkeys_keys[OBT_MODKEY_KEY_SUPER] |= mask;
+
+ else if (sym == XK_Hyper_L && hyper_l)
+ modkeys_keys[OBT_MODKEY_KEY_HYPER] |= mask;
+ else if (sym == XK_Hyper_L && !hyper_l)
+ modkeys_keys[OBT_MODKEY_KEY_HYPER] = mask, hyper_l = TRUE;
+ else if (sym == XK_Hyper_R && !hyper_l)
+ modkeys_keys[OBT_MODKEY_KEY_HYPER] |= mask;
+
+ else if (sym == XK_Alt_L && alt_l)
+ modkeys_keys[OBT_MODKEY_KEY_ALT] |= mask;
+ else if (sym == XK_Alt_L && !alt_l)
+ modkeys_keys[OBT_MODKEY_KEY_ALT] = mask, alt_l = TRUE;
+ else if (sym == XK_Alt_R && !alt_l)
+ modkeys_keys[OBT_MODKEY_KEY_ALT] |= mask;
+
+ else if (sym == XK_Meta_L && meta_l)
+ modkeys_keys[OBT_MODKEY_KEY_META] |= mask;
+ else if (sym == XK_Meta_L && !meta_l)
+ modkeys_keys[OBT_MODKEY_KEY_META] = mask, meta_l = TRUE;
+ else if (sym == XK_Meta_R && !meta_l)
+ modkeys_keys[OBT_MODKEY_KEY_META] |= mask;
+
+ /* CapsLock, Shift, and Control are special and hard-coded */
+}
+
+KeyCode obt_keyboard_keysym_to_keycode(KeySym sym)
+{
+ gint i, j;
+
+ /* go through each keycode and look for the keysym */
+ for (i = min_keycode; i <= max_keycode; ++i)
+ for (j = 0; j < keysyms_per_keycode; ++j)
+ if (sym == keymap[(i-min_keycode) * keysyms_per_keycode + j])
+ return i;
+ return 0;
+}
+
+const gchar *obt_keyboard_keycode_to_string(guint keycode)
+{
+ KeySym sym;
+ const gchar *ret = NULL;
+
+ if ((sym = XKeycodeToKeysym(obt_display, keycode, 0)) != NoSymbol)
+ ret = XKeysymToString(sym);
+ return g_locale_to_utf8(ret, -1, NULL, NULL, NULL);
+}
+
+gunichar obt_keyboard_keycode_to_unichar(guint keycode)
+{
+ gunichar unikey = 0;
+
+ const char *key;
+ if ((key = obt_keyboard_keycode_to_string(keycode)) != NULL &&
+ /* don't accept keys that aren't a single letter, like "space" */
+ key[1] == '\0')
+ {
+ unikey = g_utf8_get_char_validated(key, -1);
+ if (unikey == (gunichar)-1 || unikey == (gunichar)-2 || unikey == 0)
+ unikey = 0;
+ }
+ return unikey;
+}
--- /dev/null
+/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
+
+ obt/keyboard.h for the Openbox window manager
+ Copyright (c) 2007 Dana Jansens
+
+ 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 2 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.
+
+ See the COPYING file for a copy of the GNU General Public License.
+*/
+
+#ifndef __obt_keyboard_h
+#define __obt_keyboard_h
+
+#include <glib.h>
+#include <X11/Xlib.h>
+
+G_BEGIN_DECLS
+
+/*! These keys are bound to the modifier masks in any fashion,
+ except for CapsLock, Shift, and Control. */
+typedef enum {
+ OBT_MODKEY_KEY_CAPSLOCK,
+ OBT_MODKEY_KEY_NUMLOCK,
+ OBT_MODKEY_KEY_SCROLLLOCK,
+ OBT_MODKEY_KEY_SHIFT,
+ OBT_MODKEY_KEY_CONTROL,
+ OBT_MODKEY_KEY_SUPER,
+ OBT_MODKEY_KEY_HYPER,
+ OBT_MODKEY_KEY_META,
+ OBT_MODKEY_KEY_ALT,
+
+ OBT_MODKEY_NUM_KEYS
+} ObtModkeysKey;
+
+void obt_keyboard_reload();
+
+/*! Get the modifier mask(s) for a KeyCode. (eg. a keycode bound to Alt_L could
+ return a mask of (Mod1Mask | Mask3Mask)) */
+guint obt_keyboard_keycode_to_modmask(guint keycode);
+
+/*! Strip off all modifiers except for the modifier keys. This strips stuff
+ like Button1Mask, and also LockMask, NumlockMask, and ScrolllockMask */
+guint obt_keyboard_only_modmasks(guint mask);
+
+/*! Get the modifier masks for a modifier key. This includes both the left and
+ right keys when there are both. */
+guint obt_keyboard_modkey_to_modmask(ObtModkeysKey key);
+
+/*! Convert a KeySym to a KeyCode, because the X function is terrible - says
+ valgrind. */
+KeyCode obt_keyboard_keysym_to_keycode(KeySym sym);
+
+/*! Give the string form of a KeyCode */
+const gchar *obt_keyboard_keycode_to_string(guint keycode);
+
+/*! Translate a KeyCode to the unicode character it represents */
+gunichar obt_keyboard_keycode_to_unichar(guint keycode);
+
+
+G_END_DECLS
+
+#endif /* __obt_keyboard_h */
projects / chaz / openbox / commitdiff
