337 lines
10 KiB
C
337 lines
10 KiB
C
/*
|
|
* xkb.c - keyboard layout control functions
|
|
*
|
|
* Copyright © 2015 Aleksey Fedotov <lexa@cfotr.com>
|
|
*
|
|
* 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.
|
|
*
|
|
* 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.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* @module awesome
|
|
*/
|
|
|
|
#include "xkb.h"
|
|
#include "globalconf.h"
|
|
#include "xwindow.h"
|
|
#include "objects/client.h"
|
|
#include <xcb/xkb.h>
|
|
#include <xkbcommon/xkbcommon.h>
|
|
#include <xkbcommon/xkbcommon-x11.h>
|
|
|
|
/**
|
|
* Switch keyboard layout.
|
|
*
|
|
* @function xkb_set_layout_group
|
|
* @tparam integer num keyboard layout number, integer from 0 to 3
|
|
*/
|
|
int
|
|
luaA_xkb_set_layout_group(lua_State *L)
|
|
{
|
|
unsigned group = luaL_checkinteger(L, 1);
|
|
xcb_xkb_latch_lock_state (globalconf.connection, XCB_XKB_ID_USE_CORE_KBD,
|
|
0, 0, true, group, 0, 0, 0);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Get current layout number.
|
|
*
|
|
* @function xkb_get_layout_group
|
|
* @treturn integer num Current layout number, integer from 0 to 3.
|
|
*/
|
|
int
|
|
luaA_xkb_get_layout_group(lua_State *L)
|
|
{
|
|
xcb_xkb_get_state_cookie_t state_c;
|
|
state_c = xcb_xkb_get_state_unchecked (globalconf.connection,
|
|
XCB_XKB_ID_USE_CORE_KBD);
|
|
xcb_xkb_get_state_reply_t* state_r;
|
|
state_r = xcb_xkb_get_state_reply (globalconf.connection,
|
|
state_c, NULL);
|
|
if (!state_r)
|
|
{
|
|
free(state_r);
|
|
return 0;
|
|
}
|
|
lua_pushinteger(L, state_r->group);
|
|
free(state_r);
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* Get layout short names.
|
|
*
|
|
* @function xkb_get_group_names
|
|
* @treturn string A string describing the current layout settings,
|
|
* e.g.: 'pc+us+de:2+inet(evdev)+group(alt_shift_toggle)+ctrl(nocaps)'
|
|
*/
|
|
int
|
|
luaA_xkb_get_group_names(lua_State *L)
|
|
{
|
|
xcb_xkb_get_names_cookie_t name_c;
|
|
name_c = xcb_xkb_get_names_unchecked (globalconf.connection,
|
|
XCB_XKB_ID_USE_CORE_KBD,
|
|
XCB_XKB_NAME_DETAIL_SYMBOLS);
|
|
xcb_xkb_get_names_reply_t* name_r;
|
|
name_r = xcb_xkb_get_names_reply (globalconf.connection, name_c, NULL);
|
|
|
|
if (!name_r)
|
|
{
|
|
luaA_warn(L, "Failed to get xkb symbols name");
|
|
return 0;
|
|
}
|
|
|
|
xcb_xkb_get_names_value_list_t name_list;
|
|
void *buffer = xcb_xkb_get_names_value_list(name_r);
|
|
xcb_xkb_get_names_value_list_unpack (
|
|
buffer, name_r->nTypes, name_r->indicators,
|
|
name_r->virtualMods, name_r->groupNames, name_r->nKeys,
|
|
name_r->nKeyAliases, name_r->nRadioGroups, name_r->which,
|
|
&name_list);
|
|
|
|
xcb_get_atom_name_cookie_t atom_name_c;
|
|
atom_name_c = xcb_get_atom_name_unchecked(globalconf.connection, name_list.symbolsName);
|
|
xcb_get_atom_name_reply_t *atom_name_r;
|
|
atom_name_r = xcb_get_atom_name_reply(globalconf.connection, atom_name_c, NULL);
|
|
if (!atom_name_r) {
|
|
luaA_warn(L, "Failed to get atom symbols name");
|
|
free(name_r);
|
|
return 0;
|
|
}
|
|
|
|
const char *name = xcb_get_atom_name_name(atom_name_r);
|
|
size_t name_len = xcb_get_atom_name_name_length(atom_name_r);
|
|
lua_pushlstring(L, name, name_len);
|
|
|
|
free(atom_name_r);
|
|
free(name_r);
|
|
return 1;
|
|
}
|
|
|
|
/** Fill globalconf.xkb_state based on connection and context
|
|
*/
|
|
static void
|
|
xkb_fill_state(void)
|
|
{
|
|
xcb_connection_t *conn = globalconf.connection;
|
|
|
|
int32_t device_id = xkb_x11_get_core_keyboard_device_id(conn);
|
|
if (device_id == -1)
|
|
fatal("Failed while getting XKB device id");
|
|
|
|
struct xkb_keymap *xkb_keymap = xkb_x11_keymap_new_from_device(
|
|
globalconf.xkb_ctx,
|
|
conn,
|
|
device_id,
|
|
XKB_KEYMAP_COMPILE_NO_FLAGS);
|
|
|
|
|
|
if (!xkb_keymap)
|
|
fatal("Failed while getting XKB keymap from device");
|
|
|
|
globalconf.xkb_state = xkb_x11_state_new_from_device(xkb_keymap,
|
|
conn,
|
|
device_id);
|
|
if (!globalconf.xkb_state)
|
|
fatal("Failed while getting XKB state from device");
|
|
|
|
/* xkb_keymap is no longer referenced directly; decreasing refcount */
|
|
xkb_keymap_unref(xkb_keymap);
|
|
}
|
|
|
|
|
|
/** Loads xkb context, state and keymap to globalconf.
|
|
* These variables should be freed by xkb_free_keymap() afterwards
|
|
*/
|
|
static void
|
|
xkb_init_keymap(void)
|
|
{
|
|
globalconf.xkb_ctx = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
|
|
if (!globalconf.xkb_ctx)
|
|
fatal("Failed while getting XKB context");
|
|
|
|
xkb_fill_state();
|
|
}
|
|
|
|
/** Frees xkb context, state and keymap from globalconf.
|
|
* This should be used when these variables will not be used anymore
|
|
*/
|
|
static void
|
|
xkb_free_keymap(void)
|
|
{
|
|
xkb_state_unref(globalconf.xkb_state);
|
|
xkb_context_unref(globalconf.xkb_ctx);
|
|
}
|
|
|
|
/** Rereads the state of keyboard from X.
|
|
* This call should be used after receiving NewKeyboardNotify or MapNotify,
|
|
* as written in http://xkbcommon.org/doc/current/group__x11.html
|
|
*/
|
|
static void
|
|
xkb_reload_keymap(void)
|
|
{
|
|
xkb_state_unref(globalconf.xkb_state);
|
|
xkb_fill_state();
|
|
|
|
/* Free and then allocate the key symbols */
|
|
xcb_key_symbols_free(globalconf.keysyms);
|
|
globalconf.keysyms = xcb_key_symbols_alloc(globalconf.connection);
|
|
|
|
/* Regrab key bindings on the root window */
|
|
xcb_screen_t *s = globalconf.screen;
|
|
xwindow_grabkeys(s->root, &globalconf.keys);
|
|
|
|
/* Regrab key bindings on clients */
|
|
foreach(_c, globalconf.clients)
|
|
{
|
|
client_t *c = *_c;
|
|
xwindow_grabkeys(c->window, &c->keys);
|
|
}
|
|
}
|
|
|
|
/** The xkb notify event handler.
|
|
* \param event The event.
|
|
*/
|
|
void
|
|
event_handle_xkb_notify(xcb_generic_event_t* event)
|
|
{
|
|
lua_State *L = globalconf_get_lua_State();
|
|
|
|
/* The pad0 field of xcb_generic_event_t contains the event sub-type,
|
|
* unfortunately xkb doesn't provide a usable struct for getting this in a
|
|
* nicer way*/
|
|
switch (event->pad0)
|
|
{
|
|
case XCB_XKB_NEW_KEYBOARD_NOTIFY:
|
|
{
|
|
xcb_xkb_new_keyboard_notify_event_t *new_keyboard_event = (void*)event;
|
|
|
|
xkb_reload_keymap();
|
|
|
|
if (new_keyboard_event->changed & XCB_XKB_NKN_DETAIL_KEYCODES)
|
|
{
|
|
signal_object_emit(L, &global_signals, "xkb::map_changed", 0);
|
|
}
|
|
break;
|
|
}
|
|
case XCB_XKB_MAP_NOTIFY:
|
|
{
|
|
xkb_reload_keymap();
|
|
signal_object_emit(L, &global_signals, "xkb::map_changed", 0);
|
|
break;
|
|
}
|
|
case XCB_XKB_STATE_NOTIFY:
|
|
{
|
|
xcb_xkb_state_notify_event_t *state_notify_event = (void*)event;
|
|
|
|
xkb_state_update_mask(globalconf.xkb_state,
|
|
state_notify_event->baseMods,
|
|
state_notify_event->latchedMods,
|
|
state_notify_event->lockedMods,
|
|
state_notify_event->baseGroup,
|
|
state_notify_event->latchedGroup,
|
|
state_notify_event->lockedGroup);
|
|
|
|
if (state_notify_event->changed & XCB_XKB_STATE_PART_GROUP_STATE)
|
|
{
|
|
lua_pushnumber(L, state_notify_event->group);
|
|
signal_object_emit(L, &global_signals, "xkb::group_changed", 1);
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Initialize XKB support
|
|
* This call allocates resources, that should be freed by calling xkb_free()
|
|
*/
|
|
void
|
|
xkb_init(void)
|
|
{
|
|
|
|
int success_xkb = xkb_x11_setup_xkb_extension(globalconf.connection,
|
|
XKB_X11_MIN_MAJOR_XKB_VERSION,
|
|
XKB_X11_MIN_MINOR_XKB_VERSION,
|
|
0,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL);
|
|
|
|
|
|
if (!success_xkb) {
|
|
fatal("XKB not found or not supported");
|
|
}
|
|
|
|
uint16_t map = XCB_XKB_EVENT_TYPE_STATE_NOTIFY | XCB_XKB_EVENT_TYPE_MAP_NOTIFY | XCB_XKB_EVENT_TYPE_NEW_KEYBOARD_NOTIFY;
|
|
|
|
//
|
|
// These maps are provided to allow key remapping,
|
|
// that could be used in awesome
|
|
//
|
|
uint16_t map_parts = XCB_XKB_MAP_PART_KEY_TYPES |
|
|
XCB_XKB_MAP_PART_KEY_SYMS |
|
|
XCB_XKB_MAP_PART_MODIFIER_MAP |
|
|
XCB_XKB_MAP_PART_EXPLICIT_COMPONENTS |
|
|
XCB_XKB_MAP_PART_KEY_ACTIONS |
|
|
XCB_XKB_MAP_PART_KEY_BEHAVIORS |
|
|
XCB_XKB_MAP_PART_VIRTUAL_MODS |
|
|
XCB_XKB_MAP_PART_VIRTUAL_MOD_MAP;
|
|
|
|
/* Enable detectable auto-repeat, but ignore failures */
|
|
xcb_discard_reply(globalconf.connection,
|
|
xcb_xkb_per_client_flags(globalconf.connection,
|
|
XCB_XKB_ID_USE_CORE_KBD,
|
|
XCB_XKB_PER_CLIENT_FLAG_DETECTABLE_AUTO_REPEAT,
|
|
XCB_XKB_PER_CLIENT_FLAG_DETECTABLE_AUTO_REPEAT,
|
|
0,
|
|
0,
|
|
0)
|
|
.sequence);
|
|
|
|
xcb_xkb_select_events(globalconf.connection,
|
|
XCB_XKB_ID_USE_CORE_KBD,
|
|
map,
|
|
0,
|
|
map,
|
|
map_parts,
|
|
map_parts,
|
|
0);
|
|
|
|
/* load keymap to use when resolving keypresses */
|
|
xkb_init_keymap();
|
|
}
|
|
|
|
/** Frees resources allocated by xkb_init()
|
|
*/
|
|
void
|
|
xkb_free(void)
|
|
{
|
|
// unsubscribe from all events
|
|
xcb_xkb_select_events(globalconf.connection,
|
|
XCB_XKB_ID_USE_CORE_KBD,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
0);
|
|
xkb_free_keymap();
|
|
}
|
|
|
|
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
|