gtk/gdk/wayland/gdkkeys-wayland.c
2011-02-05 16:11:55 -05:00

348 lines
8.6 KiB
C

/* 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;
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);
}
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)
{
return FALSE;
}
static void
gdk_wayland_keymap_add_virtual_modifiers (GdkKeymap *keymap,
GdkModifierType *state)
{
}
static gboolean
gdk_wayland_keymap_map_virtual_modifiers (GdkKeymap *keymap,
GdkModifierType *state)
{
return FALSE;
}
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);
return GDK_KEYMAP (keymap);
}
struct xkb_desc *_gdk_wayland_keymap_get_xkb_desc (GdkKeymap *keymap)
{
return GDK_WAYLAND_KEYMAP (keymap)->xkb;
}