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gtk2/gdk/wayland/gdkkeys-wayland.c

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/* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <errno.h>
#include "gdk.h"
#include "gdkwayland.h"
#include "gdkprivate-wayland.h"
#include "gdkinternals.h"
#include "gdkdisplay-wayland.h"
#include "gdkkeysprivate.h"
#include <X11/extensions/XKBcommon.h>
typedef struct _GdkWaylandKeymap GdkWaylandKeymap;
typedef struct _GdkWaylandKeymapClass GdkWaylandKeymapClass;
struct _GdkWaylandKeymap
{
GdkKeymap parent_instance;
GdkModifierType modmap[8];
struct xkb_desc *xkb;
};
struct _GdkWaylandKeymapClass
{
GdkKeymapClass parent_class;
};
#define GDK_TYPE_WAYLAND_KEYMAP (_gdk_wayland_keymap_get_type ())
#define GDK_WAYLAND_KEYMAP(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_WAYLAND_KEYMAP, GdkWaylandKeymap))
#define GDK_IS_WAYLAND_KEYMAP(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_WAYLAND_KEYMAP))
G_DEFINE_TYPE (GdkWaylandKeymap, _gdk_wayland_keymap, GDK_TYPE_KEYMAP)
static void
gdk_wayland_keymap_finalize (GObject *object)
{
G_OBJECT_CLASS (_gdk_wayland_keymap_parent_class)->finalize (object);
}
static PangoDirection
gdk_wayland_keymap_get_direction (GdkKeymap *keymap)
{
return PANGO_DIRECTION_NEUTRAL;
}
static gboolean
gdk_wayland_keymap_have_bidi_layouts (GdkKeymap *keymap)
{
return FALSE;
}
static gboolean
gdk_wayland_keymap_get_caps_lock_state (GdkKeymap *keymap)
{
return FALSE;
}
static gboolean
gdk_wayland_keymap_get_num_lock_state (GdkKeymap *keymap)
{
return FALSE;
}
static gboolean
gdk_wayland_keymap_get_entries_for_keyval (GdkKeymap *keymap,
guint keyval,
GdkKeymapKey **keys,
gint *n_keys)
{
GArray *retval;
uint32_t keycode;
struct xkb_desc *xkb;
xkb = GDK_WAYLAND_KEYMAP (keymap)->xkb;
keycode = xkb->min_key_code;
retval = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey));
for (keycode = xkb->min_key_code; keycode <= xkb->max_key_code; keycode++)
{
gint max_shift_levels = XkbKeyGroupsWidth (xkb, keycode);
gint group = 0;
gint level = 0;
gint total_syms = XkbKeyNumSyms (xkb, keycode);
gint i = 0;
uint32_t *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);
for (i = 0; i < total_syms; i++)
{
/* 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++;
}
}
}
*n_keys = retval->len;
*keys = (GdkKeymapKey *) g_array_free (retval, FALSE);
return *n_keys > 0;
}
static gboolean
gdk_wayland_keymap_get_entries_for_keycode (GdkKeymap *keymap,
guint hardware_keycode,
GdkKeymapKey **keys,
guint **keyvals,
gint *n_entries)
{
GArray *key_array;
GArray *keyval_array;
struct xkb_desc *xkb;
gint max_shift_levels;
gint group = 0;
gint level = 0;
gint total_syms;
gint i;
uint32_t *entry;
g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), FALSE);
g_return_val_if_fail (n_entries != NULL, FALSE);
xkb = GDK_WAYLAND_KEYMAP (keymap)->xkb;
if (hardware_keycode < xkb->min_key_code ||
hardware_keycode > xkb->max_key_code)
{
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;
/* See sec 15.3.4 in XKB docs */
max_shift_levels = XkbKeyGroupsWidth (xkb, hardware_keycode);
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);
for (i = 0; i < total_syms; i++)
{
/* 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;
}
}
*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_wayland_keymap_lookup_key (GdkKeymap *keymap,
const GdkKeymapKey *key)
{
struct xkb_desc *xkb;
xkb = GDK_WAYLAND_KEYMAP (keymap)->xkb;
return XkbKeySymEntry (xkb, key->keycode, key->level, key->group);
}
/* 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 int
MyEnhancedXkbTranslateKeyCode(struct xkb_desc * xkb,
KeyCode key,
unsigned int mods,
unsigned int * mods_rtrn,
uint32_t * keysym_rtrn,
int * group_rtrn,
int * level_rtrn)
{
struct xkb_key_type *type;
int col,nKeyGroups;
unsigned preserve,effectiveGroup;
uint32_t *syms;
if (mods_rtrn!=NULL)
*mods_rtrn = 0;
nKeyGroups= XkbKeyNumGroups(xkb,key);
if ((!XkbKeycodeInRange(xkb,key))||(nKeyGroups==0)) {
if (keysym_rtrn!=NULL)
*keysym_rtrn = 0;
return 0;
}
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;
}
}
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;
struct xkb_kt_map_entry *entry;
/* ---- Begin section modified for GDK ---- */
int found = 0;
for (i=0,entry=type->map;i<type->map_count;i++,entry++) {
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 return other modifiers
*
*/
if (bits == 1 || (mods&type->mods.mask)==entry->mods.mask)
*mods_rtrn |= entry->mods.mask;
}
if (!found&&entry->active&&((mods&type->mods.mask)==entry->mods.mask)) {
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[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+<whatever>, 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[col] != 0);
}
static gboolean
gdk_wayland_keymap_translate_keyboard_state (GdkKeymap *keymap,
guint hardware_keycode,
GdkModifierType state,
gint group,
guint *keyval,
gint *effective_group,
gint *level,
GdkModifierType *consumed_modifiers)
{
GdkWaylandKeymap *wayland_keymap;
uint32_t tmp_keyval = 0;
guint tmp_modifiers;
struct xkb_desc *xkb;
g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), FALSE);
g_return_val_if_fail (group < 4, FALSE);
wayland_keymap = GDK_WAYLAND_KEYMAP (keymap);
xkb = wayland_keymap->xkb;
if (keyval)
*keyval = 0;
if (effective_group)
*effective_group = 0;
if (level)
*level = 0;
if (consumed_modifiers)
*consumed_modifiers = 0;
if (hardware_keycode < xkb->min_key_code ||
hardware_keycode > xkb->max_key_code)
return FALSE;
/* 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 & XKB_COMMON_LOCK_MASK)
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 |= XKB_COMMON_LOCK_MASK | 1 << 13 | 1 << 14;
if (consumed_modifiers)
*consumed_modifiers = tmp_modifiers;
if (keyval)
*keyval = tmp_keyval;
return tmp_keyval != 0;
}
static void
update_modmap (GdkWaylandKeymap *wayland_keymap)
{
static struct {
const gchar *name;
uint32_t atom;
GdkModifierType mask;
} vmods[] = {
{ "Meta", 0, GDK_META_MASK },
{ "Super", 0, GDK_SUPER_MASK },
{ "Hyper", 0, GDK_HYPER_MASK },
{ NULL, 0, 0 }
};
gint i, j, k;
if (!vmods[0].atom)
for (i = 0; vmods[i].name; i++)
vmods[i].atom = xkb_intern_atom(vmods[i].name);
for (i = 0; i < 8; i++)
wayland_keymap->modmap[i] = 1 << i;
for (i = 0; i < XkbNumVirtualMods; i++)
{
for (j = 0; vmods[j].atom; j++)
{
if (wayland_keymap->xkb->names->vmods[i] == vmods[j].atom)
{
for (k = 0; k < 8; k++)
{
if (wayland_keymap->xkb->server->vmods[i] & (1 << k))
wayland_keymap->modmap[k] |= vmods[j].mask;
}
}
}
}
}
static void
gdk_wayland_keymap_add_virtual_modifiers (GdkKeymap *keymap,
GdkModifierType *state)
{
GdkWaylandKeymap *wayland_keymap;
int i;
wayland_keymap = GDK_WAYLAND_KEYMAP (keymap);
for (i = 3; i < 8; i++)
{
if ((1 << i) & *state)
{
if (wayland_keymap->modmap[i] & GDK_MOD1_MASK)
*state |= GDK_MOD1_MASK;
if (wayland_keymap->modmap[i] & GDK_SUPER_MASK)
*state |= GDK_SUPER_MASK;
if (wayland_keymap->modmap[i] & GDK_HYPER_MASK)
*state |= GDK_HYPER_MASK;
if (wayland_keymap->modmap[i] & GDK_META_MASK)
*state |= GDK_META_MASK;
}
}
}
static gboolean
gdk_wayland_keymap_map_virtual_modifiers (GdkKeymap *keymap,
GdkModifierType *state)
{
const guint vmods[] = {
GDK_SUPER_MASK, GDK_HYPER_MASK, GDK_META_MASK
};
int i, j;
gboolean retval;
GdkWaylandKeymap *wayland_keymap;
struct xkb_desc *xkb;
wayland_keymap = GDK_WAYLAND_KEYMAP (keymap);
xkb = wayland_keymap->xkb;
for (j = 0; j < 3; j++)
{
if (*state & vmods[j])
{
for (i = 3; i < 8; i++)
{
if (wayland_keymap->modmap[i] & vmods[j])
{
if (*state & (1 << i))
retval = FALSE;
else
*state |= 1 << i;
}
}
}
}
return TRUE;
}
static void
_gdk_wayland_keymap_class_init (GdkWaylandKeymapClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkKeymapClass *keymap_class = GDK_KEYMAP_CLASS (klass);
object_class->finalize = gdk_wayland_keymap_finalize;
keymap_class->get_direction = gdk_wayland_keymap_get_direction;
keymap_class->have_bidi_layouts = gdk_wayland_keymap_have_bidi_layouts;
keymap_class->get_caps_lock_state = gdk_wayland_keymap_get_caps_lock_state;
keymap_class->get_num_lock_state = gdk_wayland_keymap_get_num_lock_state;
keymap_class->get_entries_for_keyval = gdk_wayland_keymap_get_entries_for_keyval;
keymap_class->get_entries_for_keycode = gdk_wayland_keymap_get_entries_for_keycode;
keymap_class->lookup_key = gdk_wayland_keymap_lookup_key;
keymap_class->translate_keyboard_state = gdk_wayland_keymap_translate_keyboard_state;
keymap_class->add_virtual_modifiers = gdk_wayland_keymap_add_virtual_modifiers;
keymap_class->map_virtual_modifiers = gdk_wayland_keymap_map_virtual_modifiers;
}
static void
_gdk_wayland_keymap_init (GdkWaylandKeymap *keymap)
{
}
GdkKeymap *
_gdk_wayland_keymap_new (GdkDisplay *display)
{
GdkWaylandKeymap *keymap;
struct xkb_rule_names names;
keymap = g_object_new (_gdk_wayland_keymap_get_type(), NULL);
GDK_KEYMAP (keymap)->display = display;
names.rules = "evdev";
names.model = "pc105";
names.layout = "us";
names.variant = "";
names.options = "";
keymap->xkb = xkb_compile_keymap_from_rules(&names);
update_modmap (keymap);
return GDK_KEYMAP (keymap);
}
struct xkb_desc *_gdk_wayland_keymap_get_xkb_desc (GdkKeymap *keymap)
{
return GDK_WAYLAND_KEYMAP (keymap)->xkb;
}
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