/* GDK - The GIMP Drawing Kit * Copyright (C) 2000 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see . */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include "config.h" #include "gdkkeys-x11.h" #include "gdkkeysprivate.h" #include "gdkkeysyms.h" #include "gdkprivate-x11.h" #include "gdkdisplay-x11.h" #include "gdk-private.h" #include #include #include #include #include #include #ifdef HAVE_XKB #include /* OSF-4.0 is apparently missing this macro */ # ifndef XkbKeySymEntry # define XkbKeySymEntry(d,k,sl,g) \ (XkbKeySym(d,k,((XkbKeyGroupsWidth(d,k)*(g))+(sl)))) # endif #endif /* HAVE_XKB */ typedef struct _DirectionCacheEntry DirectionCacheEntry; struct _DirectionCacheEntry { guint serial; PangoDirection direction; Atom group_atom; }; struct _GdkX11Keymap { GdkKeymap parent_instance; int min_keycode; int max_keycode; KeySym* keymap; int keysyms_per_keycode; XModifierKeymap* mod_keymap; guint lock_keysym; GdkModifierType group_switch_mask; GdkModifierType num_lock_mask; GdkModifierType scroll_lock_mask; GdkModifierType modmap[8]; PangoDirection current_direction; guint have_direction : 1; guint have_lock_state : 1; guint caps_lock_state : 1; guint num_lock_state : 1; guint scroll_lock_state : 1; guint modifier_state; guint current_serial; #ifdef HAVE_XKB XkbDescPtr xkb_desc; /* We cache the directions */ Atom current_group_atom; guint current_cache_serial; /* A cache of size four should be more than enough, people usually * have two groups around, and the xkb limit is four. It still * works correct for more than four groups. It's just the * cache. */ DirectionCacheEntry group_direction_cache[4]; #endif }; struct _GdkX11KeymapClass { GdkKeymapClass parent_class; }; #define KEYMAP_USE_XKB(keymap) GDK_X11_DISPLAY ((keymap)->display)->use_xkb #define KEYMAP_XDISPLAY(keymap) GDK_DISPLAY_XDISPLAY ((keymap)->display) G_DEFINE_TYPE (GdkX11Keymap, gdk_x11_keymap, GDK_TYPE_KEYMAP) static void gdk_x11_keymap_init (GdkX11Keymap *keymap) { keymap->min_keycode = 0; keymap->max_keycode = 0; keymap->keymap = NULL; keymap->keysyms_per_keycode = 0; keymap->mod_keymap = NULL; keymap->num_lock_mask = 0; keymap->scroll_lock_mask = 0; keymap->group_switch_mask = 0; keymap->lock_keysym = GDK_KEY_Caps_Lock; keymap->have_direction = FALSE; keymap->have_lock_state = FALSE; keymap->current_serial = 0; #ifdef HAVE_XKB keymap->xkb_desc = NULL; keymap->current_group_atom = 0; keymap->current_cache_serial = 0; #endif } static void gdk_x11_keymap_finalize (GObject *object) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (object); if (keymap_x11->keymap) XFree (keymap_x11->keymap); if (keymap_x11->mod_keymap) XFreeModifiermap (keymap_x11->mod_keymap); #ifdef HAVE_XKB if (keymap_x11->xkb_desc) XkbFreeKeyboard (keymap_x11->xkb_desc, XkbAllComponentsMask, True); #endif G_OBJECT_CLASS (gdk_x11_keymap_parent_class)->finalize (object); } static inline void update_keyrange (GdkX11Keymap *keymap_x11) { if (keymap_x11->max_keycode == 0) XDisplayKeycodes (KEYMAP_XDISPLAY (GDK_KEYMAP (keymap_x11)), &keymap_x11->min_keycode, &keymap_x11->max_keycode); } #ifdef HAVE_XKB static void update_modmap (Display *display, GdkX11Keymap *keymap_x11) { static struct { const char *name; Atom atom; GdkModifierType mask; } vmods[] = { { "Meta", 0, GDK_META_MASK }, { "Super", 0, GDK_SUPER_MASK }, { "Hyper", 0, GDK_HYPER_MASK }, { NULL, 0, 0 } }; int i, j, k; if (!vmods[0].atom) for (i = 0; vmods[i].name; i++) vmods[i].atom = XInternAtom (display, vmods[i].name, FALSE); for (i = 0; i < 8; i++) keymap_x11->modmap[i] = 1 << i; for (i = 0; i < XkbNumVirtualMods; i++) { for (j = 0; vmods[j].atom; j++) { if (keymap_x11->xkb_desc->names->vmods[i] == vmods[j].atom) { for (k = 0; k < 8; k++) { if (keymap_x11->xkb_desc->server->vmods[i] & (1 << k)) keymap_x11->modmap[k] |= vmods[j].mask; } } } } } static XkbDescPtr get_xkb (GdkX11Keymap *keymap_x11) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (GDK_KEYMAP (keymap_x11)->display); Display *xdisplay = display_x11->xdisplay; update_keyrange (keymap_x11); if (keymap_x11->xkb_desc == NULL) { keymap_x11->xkb_desc = XkbGetMap (xdisplay, XkbKeySymsMask | XkbKeyTypesMask | XkbModifierMapMask | XkbVirtualModsMask, XkbUseCoreKbd); if (keymap_x11->xkb_desc == NULL) { g_error ("Failed to get keymap"); return NULL; } XkbGetNames (xdisplay, XkbGroupNamesMask | XkbVirtualModNamesMask, keymap_x11->xkb_desc); update_modmap (xdisplay, keymap_x11); } else if (keymap_x11->current_serial != display_x11->keymap_serial) { XkbGetUpdatedMap (xdisplay, XkbKeySymsMask | XkbKeyTypesMask | XkbModifierMapMask | XkbVirtualModsMask, keymap_x11->xkb_desc); XkbGetNames (xdisplay, XkbGroupNamesMask | XkbVirtualModNamesMask, keymap_x11->xkb_desc); update_modmap (xdisplay, keymap_x11); } keymap_x11->current_serial = display_x11->keymap_serial; if (keymap_x11->num_lock_mask == 0) keymap_x11->num_lock_mask = XkbKeysymToModifiers (KEYMAP_XDISPLAY (GDK_KEYMAP (keymap_x11)), GDK_KEY_Num_Lock); if (keymap_x11->scroll_lock_mask == 0) keymap_x11->scroll_lock_mask = XkbKeysymToModifiers (KEYMAP_XDISPLAY (GDK_KEYMAP (keymap_x11)), GDK_KEY_Scroll_Lock); return keymap_x11->xkb_desc; } #endif /* HAVE_XKB */ /* Whether we were able to turn on detectable-autorepeat using * XkbSetDetectableAutorepeat. If FALSE, we’ll fall back * to checking the next event with XPending(). */ /* Find the index of the group/level pair within the keysyms for a key. * We round up the number of keysyms per keycode to the next even number, * otherwise we lose a whole group of keys */ #define KEYSYM_INDEX(keymap_impl, group, level) \ (2 * ((group) % (int)((keymap_impl->keysyms_per_keycode + 1) / 2)) + (level)) #define KEYSYM_IS_KEYPAD(s) (((s) >= 0xff80 && (s) <= 0xffbd) || \ ((s) >= 0x11000000 && (s) <= 0x1100ffff)) static int get_symbol (const KeySym *syms, GdkX11Keymap *keymap_x11, int group, int level) { int index; index = KEYSYM_INDEX(keymap_x11, group, level); if (index >= keymap_x11->keysyms_per_keycode) return NoSymbol; return syms[index]; } static void set_symbol (KeySym *syms, GdkX11Keymap *keymap_x11, int group, int level, KeySym sym) { int index; index = KEYSYM_INDEX(keymap_x11, group, level); if (index >= keymap_x11->keysyms_per_keycode) return; syms[index] = sym; } static void update_keymaps (GdkX11Keymap *keymap_x11) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (GDK_KEYMAP (keymap_x11)->display); Display *xdisplay = display_x11->xdisplay; #ifdef HAVE_XKB g_assert (!KEYMAP_USE_XKB (GDK_KEYMAP (keymap_x11))); #endif if (keymap_x11->keymap == NULL || keymap_x11->current_serial != display_x11->keymap_serial) { int i; int map_size; int keycode; keymap_x11->current_serial = display_x11->keymap_serial; update_keyrange (keymap_x11); if (keymap_x11->keymap) XFree (keymap_x11->keymap); if (keymap_x11->mod_keymap) XFreeModifiermap (keymap_x11->mod_keymap); keymap_x11->keymap = XGetKeyboardMapping (xdisplay, keymap_x11->min_keycode, keymap_x11->max_keycode - keymap_x11->min_keycode + 1, &keymap_x11->keysyms_per_keycode); /* GDK_KEY_ISO_Left_Tab, as usually configured through XKB, really messes * up the whole idea of "consumed modifiers" because shift is consumed. * However, Tab is not usually GDK_KEY_ISO_Left_Tab without XKB, * we fudge the map here. */ keycode = keymap_x11->min_keycode; while (keycode <= keymap_x11->max_keycode) { KeySym *syms = keymap_x11->keymap + (keycode - keymap_x11->min_keycode) * keymap_x11->keysyms_per_keycode; /* Check both groups */ for (i = 0 ; i < 2 ; i++) { if (get_symbol (syms, keymap_x11, i, 0) == GDK_KEY_Tab) set_symbol (syms, keymap_x11, i, 1, GDK_KEY_ISO_Left_Tab); } /* * If there is one keysym and the key symbol has upper and lower * case variants fudge the keymap */ if (get_symbol (syms, keymap_x11, 0, 1) == 0) { guint lower; guint upper; gdk_keyval_convert_case (get_symbol (syms, keymap_x11, 0, 0), &lower, &upper); if (lower != upper) { set_symbol (syms, keymap_x11, 0, 0, lower); set_symbol (syms, keymap_x11, 0, 1, upper); } } ++keycode; } keymap_x11->mod_keymap = XGetModifierMapping (xdisplay); keymap_x11->lock_keysym = GDK_KEY_VoidSymbol; keymap_x11->group_switch_mask = 0; keymap_x11->num_lock_mask = 0; keymap_x11->scroll_lock_mask = 0; for (i = 0; i < 8; i++) keymap_x11->modmap[i] = 1 << i; /* There are 8 sets of modifiers, with each set containing * max_keypermod keycodes. */ map_size = 8 * keymap_x11->mod_keymap->max_keypermod; for (i = 0; i < map_size; i++) { /* Get the key code at this point in the map. */ int code = keymap_x11->mod_keymap->modifiermap[i]; int j; KeySym *syms; guint mask; /* Ignore invalid keycodes. */ if (code < keymap_x11->min_keycode || code > keymap_x11->max_keycode) continue; syms = keymap_x11->keymap + (code - keymap_x11->min_keycode) * keymap_x11->keysyms_per_keycode; mask = 0; for (j = 0; j < keymap_x11->keysyms_per_keycode; j++) { if (syms[j] == GDK_KEY_Meta_L || syms[j] == GDK_KEY_Meta_R) mask |= GDK_META_MASK; else if (syms[j] == GDK_KEY_Hyper_L || syms[j] == GDK_KEY_Hyper_R) mask |= GDK_HYPER_MASK; else if (syms[j] == GDK_KEY_Super_L || syms[j] == GDK_KEY_Super_R) mask |= GDK_SUPER_MASK; } keymap_x11->modmap[i / keymap_x11->mod_keymap->max_keypermod] |= mask; /* The fourth modifier, GDK_ALT_MASK is 1 << 3. * Each group of max_keypermod entries refers to the same modifier. */ mask = 1 << (i / keymap_x11->mod_keymap->max_keypermod); switch (mask) { case GDK_LOCK_MASK: /* Get the Lock keysym. If any keysym bound to the Lock modifier * is Caps_Lock, we will interpret the modifier as Caps_Lock; * otherwise, if any is bound to Shift_Lock, we will interpret * the modifier as Shift_Lock. Otherwise, the lock modifier * has no effect. */ for (j = 0; j < keymap_x11->keysyms_per_keycode; j++) { if (syms[j] == GDK_KEY_Caps_Lock) keymap_x11->lock_keysym = GDK_KEY_Caps_Lock; else if (syms[j] == GDK_KEY_Shift_Lock && keymap_x11->lock_keysym == GDK_KEY_VoidSymbol) keymap_x11->lock_keysym = GDK_KEY_Shift_Lock; } break; case GDK_CONTROL_MASK: case GDK_SHIFT_MASK: case GDK_ALT_MASK: /* Some keyboard maps are known to map Mode_Switch as an * extra Mod1 key. In circumstances like that, it won't be * used to switch groups. */ break; default: /* Find the Mode_Switch, Num_Lock and Scroll_Lock modifiers. */ for (j = 0; j < keymap_x11->keysyms_per_keycode; j++) { if (syms[j] == GDK_KEY_Mode_switch) { /* This modifier swaps groups */ keymap_x11->group_switch_mask |= mask; } else if (syms[j] == GDK_KEY_Num_Lock) { /* This modifier is used for Num_Lock */ keymap_x11->num_lock_mask |= mask; } else if (syms[j] == GDK_KEY_Scroll_Lock) { /* This modifier is used for Scroll_Lock */ keymap_x11->scroll_lock_mask |= mask; } } break; } } } } static const KeySym* get_keymap (GdkX11Keymap *keymap_x11) { update_keymaps (keymap_x11); return keymap_x11->keymap; } #ifdef HAVE_XKB static PangoDirection get_direction (XkbDescRec *xkb, int group) { int code; int rtl_minus_ltr = 0; /* total number of RTL keysyms minus LTR ones */ for (code = xkb->min_key_code; code <= xkb->max_key_code; code++) { int level = 0; KeySym sym = XkbKeySymEntry (xkb, code, level, group); PangoDirection dir = gdk_unichar_direction (gdk_keyval_to_unicode (sym)); switch (dir) { case PANGO_DIRECTION_RTL: rtl_minus_ltr++; break; case PANGO_DIRECTION_LTR: rtl_minus_ltr--; break; case PANGO_DIRECTION_TTB_LTR: case PANGO_DIRECTION_TTB_RTL: case PANGO_DIRECTION_WEAK_LTR: case PANGO_DIRECTION_WEAK_RTL: case PANGO_DIRECTION_NEUTRAL: default: break; } } if (rtl_minus_ltr > 0) return PANGO_DIRECTION_RTL; else return PANGO_DIRECTION_LTR; } static PangoDirection get_direction_from_cache (GdkX11Keymap *keymap_x11, XkbDescPtr xkb, int group) { Atom group_atom = xkb->names->groups[group]; gboolean cache_hit = FALSE; DirectionCacheEntry *cache = keymap_x11->group_direction_cache; PangoDirection direction = PANGO_DIRECTION_NEUTRAL; int i; if (keymap_x11->have_direction) { /* lookup in cache */ for (i = 0; i < G_N_ELEMENTS (keymap_x11->group_direction_cache); i++) { if (cache[i].group_atom == group_atom) { cache_hit = TRUE; cache[i].serial = keymap_x11->current_cache_serial++; /* freshen */ direction = cache[i].direction; group_atom = cache[i].group_atom; break; } } } else { /* initialize cache */ for (i = 0; i < G_N_ELEMENTS (keymap_x11->group_direction_cache); i++) { cache[i].group_atom = 0; cache[i].serial = keymap_x11->current_cache_serial; } keymap_x11->current_cache_serial++; } /* insert in cache */ if (!cache_hit) { int oldest = 0; direction = get_direction (xkb, group); /* remove the oldest entry */ for (i = 0; i < G_N_ELEMENTS (keymap_x11->group_direction_cache); i++) { if (cache[i].serial < cache[oldest].serial) oldest = i; } cache[oldest].group_atom = group_atom; cache[oldest].direction = direction; cache[oldest].serial = keymap_x11->current_cache_serial++; } return direction; } static int get_num_groups (GdkKeymap *keymap, XkbDescPtr xkb) { Display *display = KEYMAP_XDISPLAY (keymap); XkbGetControls(display, XkbSlowKeysMask, xkb); XkbGetUpdatedMap (display, XkbKeySymsMask | XkbKeyTypesMask | XkbModifierMapMask | XkbVirtualModsMask, xkb); return xkb->ctrls->num_groups; } static gboolean update_direction (GdkX11Keymap *keymap_x11, GdkDevice *keyboard, int group) { XkbDescPtr xkb = get_xkb (keymap_x11); Atom group_atom; gboolean had_direction; PangoDirection old_direction; had_direction = keymap_x11->have_direction; old_direction = keymap_x11->current_direction; group_atom = xkb->names->groups[group]; /* a group change? */ if (!keymap_x11->have_direction || keymap_x11->current_group_atom != group_atom) { keymap_x11->current_direction = get_direction_from_cache (keymap_x11, xkb, group); keymap_x11->current_group_atom = group_atom; keymap_x11->have_direction = TRUE; } if (!had_direction || old_direction != keymap_x11->current_direction) { g_object_notify (G_OBJECT (keyboard), "direction"); return TRUE; } return FALSE; } static gboolean update_lock_state (GdkX11Keymap *keymap_x11, GdkDevice *keyboard, int locked_mods, int effective_mods) { XkbDescPtr xkb G_GNUC_UNUSED; gboolean have_lock_state; gboolean caps_lock_state; gboolean num_lock_state; gboolean scroll_lock_state; guint modifier_state; /* ensure keymap_x11->num_lock_mask is initialized */ xkb = get_xkb (keymap_x11); have_lock_state = keymap_x11->have_lock_state; caps_lock_state = keymap_x11->caps_lock_state; num_lock_state = keymap_x11->num_lock_state; scroll_lock_state = keymap_x11->scroll_lock_state; modifier_state = keymap_x11->modifier_state; keymap_x11->have_lock_state = TRUE; keymap_x11->caps_lock_state = (locked_mods & GDK_LOCK_MASK) != 0; keymap_x11->num_lock_state = (locked_mods & keymap_x11->num_lock_mask) != 0; keymap_x11->scroll_lock_state = (locked_mods & keymap_x11->scroll_lock_mask) != 0; /* FIXME: sanitize this */ keymap_x11->modifier_state = (guint)effective_mods; if (caps_lock_state != keymap_x11->caps_lock_state) g_object_notify (G_OBJECT (keyboard), "caps-lock-state"); if (num_lock_state != keymap_x11->num_lock_state) g_object_notify (G_OBJECT (keyboard), "num-lock-state"); if (scroll_lock_state != keymap_x11->scroll_lock_state) g_object_notify (G_OBJECT (keyboard), "scroll-lock-state"); if (modifier_state != keymap_x11->modifier_state) g_object_notify (G_OBJECT (keyboard), "modifier-state"); return !have_lock_state || (caps_lock_state != keymap_x11->caps_lock_state) || (num_lock_state != keymap_x11->num_lock_state) || (scroll_lock_state != keymap_x11->scroll_lock_state) || (modifier_state != keymap_x11->modifier_state); } /* keep this in sync with the XkbSelectEventDetails() * call in gdk_display_open() */ void _gdk_x11_keymap_state_changed (GdkDisplay *display, const XEvent *xevent) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); const XkbEvent *xkb_event = (const XkbEvent *) xevent; if (display_x11->keymap) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (display_x11->keymap); GdkDevice *keyboard; keyboard = gdk_seat_get_keyboard (gdk_display_get_default_seat (display)); if (update_direction (keymap_x11, keyboard, XkbStateGroup (&xkb_event->state))) g_signal_emit_by_name (keymap_x11, "direction-changed"); if (update_lock_state (keymap_x11, keyboard, xkb_event->state.locked_mods, xkb_event->state.mods)) g_signal_emit_by_name (keymap_x11, "state-changed"); } } #endif /* HAVE_XKB */ static void ensure_lock_state (GdkKeymap *keymap) { #ifdef HAVE_XKB if (KEYMAP_USE_XKB (keymap)) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); GdkDevice *keyboard; keyboard = gdk_seat_get_keyboard (gdk_display_get_default_seat (keymap->display)); if (!keymap_x11->have_lock_state) { GdkDisplay *display = keymap->display; XkbStateRec state_rec; XkbGetState (GDK_DISPLAY_XDISPLAY (display), XkbUseCoreKbd, &state_rec); update_lock_state (keymap_x11, keyboard, state_rec.locked_mods, state_rec.mods); } } #endif /* HAVE_XKB */ } void _gdk_x11_keymap_keys_changed (GdkDisplay *display) { GdkX11Display *display_x11 = GDK_X11_DISPLAY (display); ++display_x11->keymap_serial; if (display_x11->keymap) g_signal_emit_by_name (display_x11->keymap, "keys_changed", 0); } static PangoDirection gdk_x11_keymap_get_direction (GdkKeymap *keymap) { #ifdef HAVE_XKB if (KEYMAP_USE_XKB (keymap)) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); if (!keymap_x11->have_direction) { GdkDisplay *display = keymap->display; GdkDevice *keyboard; XkbStateRec state_rec; keyboard = gdk_seat_get_keyboard (gdk_display_get_default_seat (display)); XkbGetState (GDK_DISPLAY_XDISPLAY (display), XkbUseCoreKbd, &state_rec); update_direction (keymap_x11, keyboard, XkbStateGroup (&state_rec)); } return keymap_x11->current_direction; } else #endif /* HAVE_XKB */ return PANGO_DIRECTION_NEUTRAL; } static gboolean gdk_x11_keymap_have_bidi_layouts (GdkKeymap *keymap) { #ifdef HAVE_XKB if (KEYMAP_USE_XKB (keymap)) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); XkbDescPtr xkb = get_xkb (keymap_x11); int num_groups = get_num_groups (keymap, xkb); int i; gboolean have_ltr_keyboard = FALSE; gboolean have_rtl_keyboard = FALSE; for (i = 0; i < num_groups; i++) { if (get_direction_from_cache (keymap_x11, xkb, i) == PANGO_DIRECTION_RTL) have_rtl_keyboard = TRUE; else have_ltr_keyboard = TRUE; } return have_ltr_keyboard && have_rtl_keyboard; } else #endif /* HAVE_XKB */ return FALSE; } static gboolean gdk_x11_keymap_get_caps_lock_state (GdkKeymap *keymap) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); ensure_lock_state (keymap); return keymap_x11->caps_lock_state; } static gboolean gdk_x11_keymap_get_num_lock_state (GdkKeymap *keymap) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); ensure_lock_state (keymap); return keymap_x11->num_lock_state; } static gboolean gdk_x11_keymap_get_scroll_lock_state (GdkKeymap *keymap) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); ensure_lock_state (keymap); return keymap_x11->scroll_lock_state; } static guint gdk_x11_keymap_get_modifier_state (GdkKeymap *keymap) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); ensure_lock_state (keymap); return keymap_x11->modifier_state; } static gboolean gdk_x11_keymap_get_entries_for_keyval (GdkKeymap *keymap, guint keyval, GArray *retval) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); guint len = retval->len; #ifdef HAVE_XKB if (KEYMAP_USE_XKB (keymap)) { /* See sec 15.3.4 in XKB docs */ XkbDescRec *xkb = get_xkb (keymap_x11); int keycode; keycode = keymap_x11->min_keycode; while (keycode <= keymap_x11->max_keycode) { int max_shift_levels = XkbKeyGroupsWidth (xkb, keycode); /* "key width" */ int group = 0; int level = 0; int total_syms = XkbKeyNumSyms (xkb, keycode); int i = 0; KeySym *entry; /* entry is an array with all syms for group 0, all * syms for group 1, etc. and for each group the * shift level syms are in order */ entry = XkbKeySymsPtr (xkb, keycode); while (i < total_syms) { /* check out our cool loop invariant */ g_assert (i == (group * max_shift_levels + level)); if (entry[i] == keyval) { /* Found a match */ GdkKeymapKey key; key.keycode = keycode; key.group = group; key.level = level; g_array_append_val (retval, key); g_assert (XkbKeySymEntry (xkb, keycode, level, group) == keyval); } ++level; if (level == max_shift_levels) { level = 0; ++group; } ++i; } ++keycode; } } else #endif { const KeySym *map = get_keymap (keymap_x11); int keycode; keycode = keymap_x11->min_keycode; while (keycode <= keymap_x11->max_keycode) { const KeySym *syms = map + (keycode - keymap_x11->min_keycode) * keymap_x11->keysyms_per_keycode; int i = 0; while (i < keymap_x11->keysyms_per_keycode) { if (syms[i] == keyval) { /* found a match */ GdkKeymapKey key; key.keycode = keycode; /* The "classic" non-XKB keymap has 2 levels per group */ key.group = i / 2; key.level = i % 2; g_array_append_val (retval, key); } ++i; } ++keycode; } } return retval->len > len; } static gboolean gdk_x11_keymap_get_entries_for_keycode (GdkKeymap *keymap, guint hardware_keycode, GdkKeymapKey **keys, guint **keyvals, int *n_entries) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); GArray *key_array; GArray *keyval_array; update_keyrange (keymap_x11); if (hardware_keycode < keymap_x11->min_keycode || hardware_keycode > keymap_x11->max_keycode) { if (keys) *keys = NULL; if (keyvals) *keyvals = NULL; *n_entries = 0; return FALSE; } if (keys) key_array = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey)); else key_array = NULL; if (keyvals) keyval_array = g_array_new (FALSE, FALSE, sizeof (guint)); else keyval_array = NULL; #ifdef HAVE_XKB if (KEYMAP_USE_XKB (keymap)) { /* See sec 15.3.4 in XKB docs */ XkbDescRec *xkb = get_xkb (keymap_x11); int max_shift_levels; int group = 0; int level = 0; int total_syms; int i = 0; KeySym *entry; max_shift_levels = XkbKeyGroupsWidth (xkb, hardware_keycode); /* "key width" */ total_syms = XkbKeyNumSyms (xkb, hardware_keycode); /* entry is an array with all syms for group 0, all * syms for group 1, etc. and for each group the * shift level syms are in order */ entry = XkbKeySymsPtr (xkb, hardware_keycode); while (i < total_syms) { /* check out our cool loop invariant */ g_assert (i == (group * max_shift_levels + level)); if (key_array) { GdkKeymapKey key; key.keycode = hardware_keycode; key.group = group; key.level = level; g_array_append_val (key_array, key); } if (keyval_array) g_array_append_val (keyval_array, entry[i]); ++level; if (level == max_shift_levels) { level = 0; ++group; } ++i; } } else #endif { const KeySym *map = get_keymap (keymap_x11); const KeySym *syms; int i = 0; syms = map + (hardware_keycode - keymap_x11->min_keycode) * keymap_x11->keysyms_per_keycode; while (i < keymap_x11->keysyms_per_keycode) { if (key_array) { GdkKeymapKey key; key.keycode = hardware_keycode; /* The "classic" non-XKB keymap has 2 levels per group */ key.group = i / 2; key.level = i % 2; g_array_append_val (key_array, key); } if (keyval_array) g_array_append_val (keyval_array, syms[i]); ++i; } } *n_entries = 0; if (keys) { *n_entries = key_array->len; *keys = (GdkKeymapKey*) g_array_free (key_array, FALSE); } if (keyvals) { *n_entries = keyval_array->len; *keyvals = (guint*) g_array_free (keyval_array, FALSE); } return *n_entries > 0; } static guint gdk_x11_keymap_lookup_key (GdkKeymap *keymap, const GdkKeymapKey *key) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); g_return_val_if_fail (key->group < 4, 0); #ifdef HAVE_XKB if (KEYMAP_USE_XKB (keymap)) { XkbDescRec *xkb = get_xkb (keymap_x11); return XkbKeySymEntry (xkb, key->keycode, key->level, key->group); } else #endif { const KeySym *map = get_keymap (keymap_x11); const KeySym *syms = map + (key->keycode - keymap_x11->min_keycode) * keymap_x11->keysyms_per_keycode; return get_symbol (syms, keymap_x11, key->group, key->level); } } #ifdef HAVE_XKB /* This is copied straight from XFree86 Xlib, to: * - add the group and level return. * - change the interpretation of mods_rtrn as described * in the docs for gdk_keymap_translate_keyboard_state() * It’s unchanged for ease of diff against the Xlib sources; don't * reformat it. */ static Bool MyEnhancedXkbTranslateKeyCode(register XkbDescPtr xkb, KeyCode key, register unsigned int mods, unsigned int * mods_rtrn, KeySym * keysym_rtrn, int * group_rtrn, int * level_rtrn) { XkbKeyTypeRec *type; int col,nKeyGroups; unsigned preserve,effectiveGroup; KeySym *syms; int found_col = 0; if (mods_rtrn!=NULL) *mods_rtrn = 0; nKeyGroups= XkbKeyNumGroups(xkb,key); if ((!XkbKeycodeInRange(xkb,key))||(nKeyGroups==0)) { if (keysym_rtrn!=NULL) *keysym_rtrn = NoSymbol; return False; } syms = XkbKeySymsPtr(xkb,key); /* find the offset of the effective group */ col = 0; effectiveGroup= XkbGroupForCoreState(mods); if ( effectiveGroup>=nKeyGroups ) { unsigned groupInfo= XkbKeyGroupInfo(xkb,key); switch (XkbOutOfRangeGroupAction(groupInfo)) { default: effectiveGroup %= nKeyGroups; break; case XkbClampIntoRange: effectiveGroup = nKeyGroups-1; break; case XkbRedirectIntoRange: effectiveGroup = XkbOutOfRangeGroupNumber(groupInfo); if (effectiveGroup>=nKeyGroups) effectiveGroup= 0; break; } } found_col = col= effectiveGroup*XkbKeyGroupsWidth(xkb,key); type = XkbKeyKeyType(xkb,key,effectiveGroup); preserve= 0; if (type->map) { /* find the column (shift level) within the group */ register int i; register XkbKTMapEntryPtr entry; /* ---- Begin section modified for GDK ---- */ int found = 0; for (i=0,entry=type->map;imap_count;i++,entry++) { if (!entry->active || syms[col+entry->level] == syms[col]) continue; if (mods_rtrn) { int bits = 0; unsigned long tmp = entry->mods.mask; while (tmp) { if ((tmp & 1) == 1) bits++; tmp >>= 1; } /* We always add one-modifiers levels to mods_rtrn since * they can't wipe out bits in the state unless the * level would be triggered. But not if they don't change * the symbol (otherwise we can't discriminate Shift-F10 * and F10 anymore). And don't add modifiers that are * explicitly marked as preserved, either. */ if (bits == 1 || (mods&type->mods.mask) == entry->mods.mask) { if (type->preserve) *mods_rtrn |= (entry->mods.mask & ~type->preserve[i].mask); else *mods_rtrn |= entry->mods.mask; } } if (!found && ((mods&type->mods.mask) == entry->mods.mask)) { found_col= col + entry->level; if (type->preserve) preserve= type->preserve[i].mask; if (level_rtrn) *level_rtrn = entry->level; found = 1; } } /* ---- End section modified for GDK ---- */ } if (keysym_rtrn!=NULL) *keysym_rtrn= syms[found_col]; if (mods_rtrn) { /* ---- Begin section modified for GDK ---- */ *mods_rtrn &= ~preserve; /* ---- End section modified for GDK ---- */ /* ---- Begin stuff GDK comments out of the original Xlib version ---- */ /* This is commented out because xkb_info is a private struct */ #if 0 /* The Motif VTS doesn't get the help callback called if help * is bound to Shift+, and it appears as though it * is XkbTranslateKeyCode that is causing the problem. The * core X version of XTranslateKey always OR's in ShiftMask * and LockMask for mods_rtrn, so this "fix" keeps this behavior * and solves the VTS problem. */ if ((xkb->dpy)&&(xkb->dpy->xkb_info)&& (xkb->dpy->xkb_info->xlib_ctrls&XkbLC_AlwaysConsumeShiftAndLock)) { *mods_rtrn|= (ShiftMask|LockMask); } #endif /* ---- End stuff GDK comments out of the original Xlib version ---- */ } /* ---- Begin stuff GDK adds to the original Xlib version ---- */ if (group_rtrn) *group_rtrn = effectiveGroup; /* ---- End stuff GDK adds to the original Xlib version ---- */ return (syms[found_col] != NoSymbol); } #endif /* HAVE_XKB */ /* Translates from keycode/state to keysymbol using the traditional interpretation * of the keyboard map. See section 12.7 of the Xlib reference manual */ static guint translate_keysym (GdkX11Keymap *keymap_x11, guint hardware_keycode, int group, GdkModifierType state, int *effective_group, int *effective_level) { const KeySym *map = get_keymap (keymap_x11); const KeySym *syms = map + (hardware_keycode - keymap_x11->min_keycode) * keymap_x11->keysyms_per_keycode; #define SYM(k,g,l) get_symbol (syms, k,g,l) GdkModifierType shift_modifiers; int shift_level; guint tmp_keyval; shift_modifiers = GDK_SHIFT_MASK; if (keymap_x11->lock_keysym == GDK_KEY_Shift_Lock) shift_modifiers |= GDK_LOCK_MASK; /* Fall back to the first group if the passed in group is empty */ if (!(SYM (keymap_x11, group, 0) || SYM (keymap_x11, group, 1)) && (SYM (keymap_x11, 0, 0) || SYM (keymap_x11, 0, 1))) group = 0; if ((state & keymap_x11->num_lock_mask) && KEYSYM_IS_KEYPAD (SYM (keymap_x11, group, 1))) { /* Shift, Shift_Lock cancel Num_Lock */ shift_level = (state & shift_modifiers) ? 0 : 1; if (!SYM (keymap_x11, group, shift_level) && SYM (keymap_x11, group, 0)) shift_level = 0; tmp_keyval = SYM (keymap_x11, group, shift_level); } else { /* Fall back to the first level if no symbol for the level * we were passed. */ shift_level = (state & shift_modifiers) ? 1 : 0; if (!SYM (keymap_x11, group, shift_level) && SYM (keymap_x11, group, 0)) shift_level = 0; tmp_keyval = SYM (keymap_x11, group, shift_level); if (keymap_x11->lock_keysym == GDK_KEY_Caps_Lock && (state & GDK_LOCK_MASK) != 0) { guint upper = gdk_keyval_to_upper (tmp_keyval); if (upper != tmp_keyval) tmp_keyval = upper; } } if (effective_group) *effective_group = group; if (effective_level) *effective_level = shift_level; return tmp_keyval; #undef SYM } static gboolean gdk_x11_keymap_translate_keyboard_state (GdkKeymap *keymap, guint hardware_keycode, GdkModifierType state, int group, guint *keyval, int *effective_group, int *level, GdkModifierType *consumed_modifiers) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); KeySym tmp_keyval = NoSymbol; guint tmp_modifiers; g_return_val_if_fail (group < 4, FALSE); if (keyval) *keyval = NoSymbol; if (effective_group) *effective_group = 0; if (level) *level = 0; if (consumed_modifiers) *consumed_modifiers = 0; update_keyrange (keymap_x11); if (hardware_keycode < keymap_x11->min_keycode || hardware_keycode > keymap_x11->max_keycode) return FALSE; #ifdef HAVE_XKB if (KEYMAP_USE_XKB (keymap)) { XkbDescRec *xkb = get_xkb (keymap_x11); /* replace bits 13 and 14 with the provided group */ state &= ~(1 << 13 | 1 << 14); state |= group << 13; MyEnhancedXkbTranslateKeyCode (xkb, hardware_keycode, state, &tmp_modifiers, &tmp_keyval, effective_group, level); if (state & ~tmp_modifiers & LockMask) tmp_keyval = gdk_keyval_to_upper (tmp_keyval); /* We need to augment the consumed modifiers with LockMask, since * we handle that ourselves, and also with the group bits */ tmp_modifiers |= LockMask | 1 << 13 | 1 << 14; } else #endif { GdkModifierType bit; tmp_modifiers = 0; /* We see what modifiers matter by trying the translation with * and without each possible modifier */ for (bit = GDK_SHIFT_MASK; bit < GDK_BUTTON1_MASK; bit <<= 1) { /* Handling of the group here is a bit funky; a traditional * X keyboard map can have more than two groups, but no way * of accessing the extra groups is defined. We allow a * caller to pass in any group to this function, but we * only can represent switching between group 0 and 1 in * consumed modifiers. */ if (translate_keysym (keymap_x11, hardware_keycode, (bit == keymap_x11->group_switch_mask) ? 0 : group, state & ~bit, NULL, NULL) != translate_keysym (keymap_x11, hardware_keycode, (bit == keymap_x11->group_switch_mask) ? 1 : group, state | bit, NULL, NULL)) tmp_modifiers |= bit; } tmp_keyval = translate_keysym (keymap_x11, hardware_keycode, group, state, effective_group, level); } if (consumed_modifiers) *consumed_modifiers = tmp_modifiers; if (keyval) *keyval = tmp_keyval; return tmp_keyval != NoSymbol; } /*< private > * gdk_x11_keymap_get_group_for_state: * @keymap: (type GdkX11Keymap): a #GdkX11Keymap * @state: raw state returned from X * * Extracts the group from the state field sent in an X Key event. * This is only needed for code processing raw X events, since #GdkEventKey * directly includes an is_modifier field. * * Returns: the index of the active keyboard group for the event */ int gdk_x11_keymap_get_group_for_state (GdkKeymap *keymap, guint state) { GdkDisplay *display; GdkX11Display *display_x11; g_return_val_if_fail (GDK_IS_X11_KEYMAP (keymap), 0); display = keymap->display; display_x11 = GDK_X11_DISPLAY (display); #ifdef HAVE_XKB if (display_x11->use_xkb) { return XkbGroupForCoreState (state); } else #endif { GdkX11Keymap *keymap_impl = GDK_X11_KEYMAP (gdk_display_get_keymap (display)); update_keymaps (keymap_impl); return (state & keymap_impl->group_switch_mask) ? 1 : 0; } } void _gdk_x11_keymap_add_virt_mods (GdkKeymap *keymap, GdkModifierType *modifiers) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); int i; /* This loop used to start at 3, which included MOD1 in the * virtual mapping. However, all of GTK+ treats MOD1 as a * synonym for Alt, and does not expect it to be mapped around, * therefore it's more sane to simply treat MOD1 like SHIFT and * CONTROL, which are not mappable either. */ for (i = 4; i < 8; i++) { if ((1 << i) & *modifiers) { if (keymap_x11->modmap[i] & GDK_SUPER_MASK) *modifiers |= GDK_SUPER_MASK; else if (keymap_x11->modmap[i] & GDK_HYPER_MASK) *modifiers |= GDK_HYPER_MASK; else if (keymap_x11->modmap[i] & GDK_META_MASK) *modifiers |= GDK_META_MASK; } } } /*< private > * gdk_x11_keymap_key_is_modifier: * @keymap: (type GdkX11Keymap): a #GdkX11Keymap * @keycode: the hardware keycode from a key event * * Determines whether a particular key code represents a key that * is a modifier. That is, it’s a key that normally just affects * the keyboard state and the behavior of other keys rather than * producing a direct effect itself. This is only needed for code * processing raw X events, since #GdkEventKey directly includes * an is_modifier field. * * Returns: %TRUE if the hardware keycode is a modifier key */ gboolean gdk_x11_keymap_key_is_modifier (GdkKeymap *keymap, guint keycode) { GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap); int i; g_return_val_if_fail (GDK_IS_X11_KEYMAP (keymap), FALSE); update_keyrange (keymap_x11); if (keycode < keymap_x11->min_keycode || keycode > keymap_x11->max_keycode) return FALSE; #ifdef HAVE_XKB if (KEYMAP_USE_XKB (keymap)) { XkbDescRec *xkb = get_xkb (keymap_x11); if (xkb->map->modmap && xkb->map->modmap[keycode] != 0) return TRUE; } else #endif { for (i = 0; i < 8 * keymap_x11->mod_keymap->max_keypermod; i++) { if (keycode == keymap_x11->mod_keymap->modifiermap[i]) return TRUE; } } return FALSE; } static void gdk_x11_keymap_class_init (GdkX11KeymapClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GdkKeymapClass *keymap_class = GDK_KEYMAP_CLASS (klass); object_class->finalize = gdk_x11_keymap_finalize; keymap_class->get_direction = gdk_x11_keymap_get_direction; keymap_class->have_bidi_layouts = gdk_x11_keymap_have_bidi_layouts; keymap_class->get_caps_lock_state = gdk_x11_keymap_get_caps_lock_state; keymap_class->get_num_lock_state = gdk_x11_keymap_get_num_lock_state; keymap_class->get_scroll_lock_state = gdk_x11_keymap_get_scroll_lock_state; keymap_class->get_modifier_state = gdk_x11_keymap_get_modifier_state; keymap_class->get_entries_for_keyval = gdk_x11_keymap_get_entries_for_keyval; keymap_class->get_entries_for_keycode = gdk_x11_keymap_get_entries_for_keycode; keymap_class->lookup_key = gdk_x11_keymap_lookup_key; keymap_class->translate_keyboard_state = gdk_x11_keymap_translate_keyboard_state; }