/*
* Returns the mask for Mode_switch (to be used for looking up keysymbols by
* keycode).
*
*/
uint32_t get_mod_mask(xcb_connection_t *conn, uint32_t keycode) {
xcb_key_symbols_t *symbols = xcb_key_symbols_alloc(conn);
xcb_get_modifier_mapping_reply_t *modmap_r;
xcb_keycode_t *modmap, kc;
xcb_keycode_t *modeswitchcodes = xcb_key_symbols_get_keycode(symbols, keycode);
if (modeswitchcodes == NULL)
return 0;
modmap_r = xcb_get_modifier_mapping_reply(conn, xcb_get_modifier_mapping(conn), NULL);
modmap = xcb_get_modifier_mapping_keycodes(modmap_r);
for (int i = 0; i < 8; i++)
for (int j = 0; j < modmap_r->keycodes_per_modifier; j++) {
kc = modmap[i * modmap_r->keycodes_per_modifier + j];
for (xcb_keycode_t *ktest = modeswitchcodes; *ktest; ktest++) {
if (*ktest != kc)
continue;
free(modeswitchcodes);
free(modmap_r);
return (1 << i);
}
}
return 0;
}
static unsigned GetModifier( xcb_connection_t *p_connection, xcb_key_symbols_t *p_symbols, xcb_keysym_t sym )
{
static const unsigned pi_mask[8] = {
XCB_MOD_MASK_SHIFT, XCB_MOD_MASK_LOCK, XCB_MOD_MASK_CONTROL, XCB_MOD_MASK_1,
XCB_MOD_MASK_2, XCB_MOD_MASK_3, XCB_MOD_MASK_4, XCB_MOD_MASK_5
};
const xcb_keycode_t key = xcb_key_symbols_get_keycode( p_symbols, sym );
if( key == 0 )
return 0;
xcb_get_modifier_mapping_cookie_t r = xcb_get_modifier_mapping( p_connection );
xcb_get_modifier_mapping_reply_t *p_map = xcb_get_modifier_mapping_reply( p_connection, r, NULL );
if( !p_map )
return 0;
xcb_keycode_t *p_keycode = xcb_get_modifier_mapping_keycodes( p_map );
if( !p_keycode )
return 0;
unsigned i_mask = 0;
for( int i = 0; i < 8; i++ )
{
for( int j = 0; j < p_map->keycodes_per_modifier; j++ )
{
if( p_keycode[i * p_map->keycodes_per_modifier + j] == key )
i_mask = pi_mask[i];
}
}
free( p_map ); // FIXME to check
return i_mask;
}
int16_t modfield_from_keysym(xcb_keysym_t keysym)
{
uint16_t modfield = 0;
xcb_keycode_t *keycodes = NULL, *mod_keycodes = NULL;
xcb_get_modifier_mapping_reply_t *reply = NULL;
xcb_key_symbols_t *symbols = xcb_key_symbols_alloc(dpy);
if ((keycodes = xcb_key_symbols_get_keycode(symbols, keysym)) == NULL ||
(reply = xcb_get_modifier_mapping_reply(dpy, xcb_get_modifier_mapping(dpy), NULL)) == NULL ||
reply->keycodes_per_modifier < 1 ||
(mod_keycodes = xcb_get_modifier_mapping_keycodes(reply)) == NULL) {
goto end;
}
unsigned int num_mod = xcb_get_modifier_mapping_keycodes_length(reply) / reply->keycodes_per_modifier;
for (unsigned int i = 0; i < num_mod; i++) {
for (unsigned int j = 0; j < reply->keycodes_per_modifier; j++) {
xcb_keycode_t mk = mod_keycodes[i * reply->keycodes_per_modifier + j];
if (mk == XCB_NO_SYMBOL) {
continue;
}
for (xcb_keycode_t *k = keycodes; *k != XCB_NO_SYMBOL; k++) {
if (*k == mk) {
modfield |= (1 << i);
}
}
}
}
end:
xcb_key_symbols_free(symbols);
free(keycodes);
free(reply);
return modfield;
}
static unsigned GetModifier( xcb_connection_t *p_connection, xcb_key_symbols_t *p_symbols, xcb_keysym_t sym )
{
static const unsigned pi_mask[8] = {
XCB_MOD_MASK_SHIFT, XCB_MOD_MASK_LOCK, XCB_MOD_MASK_CONTROL,
XCB_MOD_MASK_1, XCB_MOD_MASK_2, XCB_MOD_MASK_3,
XCB_MOD_MASK_4, XCB_MOD_MASK_5
};
if( sym == 0 )
return 0; /* no modifier */
xcb_get_modifier_mapping_cookie_t r =
xcb_get_modifier_mapping( p_connection );
xcb_get_modifier_mapping_reply_t *p_map =
xcb_get_modifier_mapping_reply( p_connection, r, NULL );
if( !p_map )
return 0;
xcb_keycode_t *p_keys = xcb_key_symbols_get_keycode( p_symbols, sym );
if( !p_keys )
goto end;
int i = 0;
bool no_modifier = true;
while( p_keys[i] != XCB_NO_SYMBOL )
{
if( p_keys[i] != 0 )
{
no_modifier = false;
break;
}
i++;
}
if( no_modifier )
goto end;
xcb_keycode_t *p_keycode = xcb_get_modifier_mapping_keycodes( p_map );
if( !p_keycode )
goto end;
for( int i = 0; i < 8; i++ )
for( int j = 0; j < p_map->keycodes_per_modifier; j++ )
for( int k = 0; p_keys[k] != XCB_NO_SYMBOL; k++ )
if( p_keycode[i*p_map->keycodes_per_modifier + j] == p_keys[k])
{
free( p_keys );
free( p_map );
return pi_mask[i];
}
end:
free( p_keys );
free( p_map ); // FIXME to check
return 0;
}
/*
* All-in-one function which returns the modifier mask (XCB_MOD_MASK_*) for the
* given keysymbol, for example for XCB_NUM_LOCK (usually configured to mod2).
*
* This function initiates one round-trip. Use get_mod_mask_for() directly if
* you already have the modifier mapping and key symbols.
*
*/
uint32_t aio_get_mod_mask_for(uint32_t keysym, xcb_key_symbols_t *symbols) {
xcb_get_modifier_mapping_cookie_t cookie;
xcb_get_modifier_mapping_reply_t *modmap_r;
xcb_flush(conn);
/* Get the current modifier mapping (this is blocking!) */
cookie = xcb_get_modifier_mapping(conn);
if (!(modmap_r = xcb_get_modifier_mapping_reply(conn, cookie, NULL)))
return 0;
uint32_t result = get_mod_mask_for(keysym, symbols, modmap_r);
free(modmap_r);
return result;
}
XRecordKeyboardMonitor::XRecordKeyboardMonitor(Display *display)
: m_connection(xcb_connect(XDisplayString(display), 0)),
m_modifiersPressed(0), m_keysPressed(0)
{
if (!m_connection) {
return;
}
xcb_get_modifier_mapping_cookie_t modmapCookie =
xcb_get_modifier_mapping(m_connection);
m_context = xcb_generate_id(m_connection);
xcb_record_range_t range;
memset(&range, 0, sizeof(range));
range.device_events.first = XCB_KEY_PRESS;
range.device_events.last = XCB_KEY_RELEASE;
xcb_record_client_spec_t cs = XCB_RECORD_CS_ALL_CLIENTS;
xcb_record_create_context(m_connection, m_context, 0, 1, 1, &cs, &range);
xcb_flush(m_connection);
QScopedPointer<xcb_get_modifier_mapping_reply_t, QScopedPointerPodDeleter>
modmap(xcb_get_modifier_mapping_reply(m_connection, modmapCookie, 0));
if (!modmap) {
return;
}
int nModifiers = xcb_get_modifier_mapping_keycodes_length(modmap.data());
xcb_keycode_t *modifiers = xcb_get_modifier_mapping_keycodes(modmap.data());
m_modifier.fill(false, std::numeric_limits<xcb_keycode_t>::max() + 1);
for (xcb_keycode_t *i = modifiers; i < modifiers + nModifiers; i++) {
m_modifier[*i] = true;
}
m_ignore.fill(false, std::numeric_limits<xcb_keycode_t>::max() + 1);
for (xcb_keycode_t *i = modifiers;
i < modifiers + modmap->keycodes_per_modifier; i++)
{
m_ignore[*i] = true;
}
m_pressed.fill(false, std::numeric_limits<xcb_keycode_t>::max() + 1);
m_cookie = xcb_record_enable_context(m_connection, m_context);
xcb_flush(m_connection);
m_notifier = new QSocketNotifier(xcb_get_file_descriptor(m_connection),
QSocketNotifier::Read, this);
connect(m_notifier, SIGNAL(activated(int)), SLOT(processNextReply()));
m_notifier->setEnabled(true);
}
void App::keyRelease(const xcb_key_release_event_t* event)
{
unsigned int mk = event->state & USED_MASK;
// ev.state is state before the key release, so just checking mk being 0 isn't enough
// using XQueryPointer() also doesn't seem to work well, so the check that all
// modifiers are released: only one modifier is active and the currently released
// key is this modifier - if yes, release the grab
int mod_index = -1;
for (int i = XCB_MAP_INDEX_SHIFT;
i <= XCB_MAP_INDEX_5;
++i)
if ((mk & (1 << i)) != 0) {
if (mod_index >= 0)
return;
mod_index = i;
}
bool release = false;
if (mod_index == -1)
release = true;
else {
auto cookie = xcb_get_modifier_mapping(QX11Info::connection());
auto reply = xcb_get_modifier_mapping_reply(QX11Info::connection(), cookie, NULL);
if (reply) {
auto keycodes = xcb_get_modifier_mapping_keycodes(reply);
for (int i = 0; i < reply->keycodes_per_modifier; i++) {
if (keycodes[reply->keycodes_per_modifier * mod_index + i]
== event->detail) {
release = true;
}
}
}
free(reply);
}
if (!release) {
return;
}
if (m_keyboardGrabbed) {
accept();
}
}
/*
* Creates the config file and tells i3 to reload.
*
*/
static void finish() {
printf("creating \"%s\"...\n", config_path);
if (!(dpy = XOpenDisplay(NULL)))
errx(1, "Could not connect to X11");
FILE *kc_config = fopen(SYSCONFDIR "/i3/config.keycodes", "r");
if (kc_config == NULL)
err(1, "Could not open input file \"%s\"", SYSCONFDIR "/i3/config.keycodes");
FILE *ks_config = fopen(config_path, "w");
if (ks_config == NULL)
err(1, "Could not open output config file \"%s\"", config_path);
free(config_path);
char *line = NULL;
size_t len = 0;
#ifndef USE_FGETLN
ssize_t read;
#endif
bool head_of_file = true;
/* write a header about auto-generation to the output file */
fputs("# This file has been auto-generated by i3-config-wizard(1).\n", ks_config);
fputs("# It will not be overwritten, so edit it as you like.\n", ks_config);
fputs("#\n", ks_config);
fputs("# Should you change your keyboard layout somewhen, delete\n", ks_config);
fputs("# this file and re-run i3-config-wizard(1).\n", ks_config);
fputs("#\n", ks_config);
#ifdef USE_FGETLN
char *buf = NULL;
while ((buf = fgetln(kc_config, &len)) != NULL) {
/* fgetln does not return null-terminated strings */
FREE(line);
sasprintf(&line, "%.*s", len, buf);
#else
size_t linecap = 0;
while ((read = getline(&line, &linecap, kc_config)) != -1) {
len = strlen(line);
#endif
/* skip the warning block at the beginning of the input file */
if (head_of_file &&
strncmp("# WARNING", line, strlen("# WARNING")) == 0)
continue;
head_of_file = false;
/* Skip leading whitespace */
char *walk = line;
while (isspace(*walk) && walk < (line + len)) {
/* Pre-output the skipped whitespaces to keep proper indentation */
fputc(*walk, ks_config);
walk++;
}
/* Set the modifier the user chose */
if (strncmp(walk, "set $mod ", strlen("set $mod ")) == 0) {
if (modifier == MOD_Mod1)
fputs("set $mod Mod1\n", ks_config);
else fputs("set $mod Mod4\n", ks_config);
continue;
}
/* Check for 'bindcode'. If it’s not a bindcode line, we
* just copy it to the output file */
if (strncmp(walk, "bindcode", strlen("bindcode")) != 0) {
fputs(walk, ks_config);
continue;
}
char *result = rewrite_binding(walk);
fputs(result, ks_config);
free(result);
}
/* sync to do our best in order to have the file really stored on disk */
fflush(ks_config);
fsync(fileno(ks_config));
#ifndef USE_FGETLN
free(line);
#endif
fclose(kc_config);
fclose(ks_config);
/* tell i3 to reload the config file */
int sockfd = ipc_connect(socket_path);
ipc_send_message(sockfd, strlen("reload"), 0, (uint8_t*)"reload");
close(sockfd);
exit(0);
}
int main(int argc, char *argv[]) {
config_path = resolve_tilde("~/.i3/config");
socket_path = getenv("I3SOCK");
char *pattern = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
char *patternbold = "-misc-fixed-bold-r-normal--13-120-75-75-C-70-iso10646-1";
int o, option_index = 0;
static struct option long_options[] = {
{"socket", required_argument, 0, 's'},
{"version", no_argument, 0, 'v'},
{"limit", required_argument, 0, 'l'},
{"prompt", required_argument, 0, 'P'},
{"prefix", required_argument, 0, 'p'},
{"font", required_argument, 0, 'f'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0}
};
char *options_string = "s:vh";
while ((o = getopt_long(argc, argv, options_string, long_options, &option_index)) != -1) {
switch (o) {
case 's':
FREE(socket_path);
socket_path = strdup(optarg);
break;
case 'v':
printf("i3-config-wizard " I3_VERSION "\n");
return 0;
case 'h':
printf("i3-config-wizard " I3_VERSION "\n");
printf("i3-config-wizard [-s <socket>] [-v]\n");
return 0;
}
}
/* Check if the destination config file does not exist but the path is
* writable. If not, exit now, this program is not useful in that case. */
struct stat stbuf;
if (stat(config_path, &stbuf) == 0) {
printf("The config file \"%s\" already exists. Exiting.\n", config_path);
return 0;
}
/* Create ~/.i3 if it does not yet exist */
char *config_dir = resolve_tilde("~/.i3");
if (stat(config_dir, &stbuf) != 0)
if (mkdir(config_dir, 0755) == -1)
err(1, "mkdir(%s) failed", config_dir);
free(config_dir);
int fd;
if ((fd = open(config_path, O_CREAT | O_RDWR, 0644)) == -1) {
printf("Cannot open file \"%s\" for writing: %s. Exiting.\n", config_path, strerror(errno));
return 0;
}
close(fd);
unlink(config_path);
if (socket_path == NULL)
socket_path = root_atom_contents("I3_SOCKET_PATH");
if (socket_path == NULL)
socket_path = "/tmp/i3-ipc.sock";
int screens;
if ((conn = xcb_connect(NULL, &screens)) == NULL ||
xcb_connection_has_error(conn))
errx(1, "Cannot open display\n");
xcb_get_modifier_mapping_cookie_t modmap_cookie;
modmap_cookie = xcb_get_modifier_mapping(conn);
symbols = xcb_key_symbols_alloc(conn);
/* Place requests for the atoms we need as soon as possible */
#define xmacro(atom) \
xcb_intern_atom_cookie_t atom ## _cookie = xcb_intern_atom(conn, 0, strlen(#atom), #atom);
#include "atoms.xmacro"
#undef xmacro
root_screen = xcb_aux_get_screen(conn, screens);
root = root_screen->root;
if (!(modmap_reply = xcb_get_modifier_mapping_reply(conn, modmap_cookie, NULL)))
errx(EXIT_FAILURE, "Could not get modifier mapping\n");
xcb_numlock_mask = get_mod_mask_for(XCB_NUM_LOCK, symbols, modmap_reply);
font = load_font(pattern, true);
bold_font = load_font(patternbold, true);
/* Open an input window */
win = xcb_generate_id(conn);
xcb_create_window(
conn,
XCB_COPY_FROM_PARENT,
win, /* the window id */
root, /* parent == root */
490, 297, 300, 205, /* dimensions */
0, /* X11 border = 0, we draw our own */
XCB_WINDOW_CLASS_INPUT_OUTPUT,
XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */
XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK,
(uint32_t[]){
0, /* back pixel: black */
XCB_EVENT_MASK_EXPOSURE |
XCB_EVENT_MASK_BUTTON_PRESS
});
/* Map the window (make it visible) */
xcb_map_window(conn, win);
/* Setup NetWM atoms */
#define xmacro(name) \
do { \
xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, name ## _cookie, NULL); \
if (!reply) \
errx(EXIT_FAILURE, "Could not get atom " # name "\n"); \
\
A_ ## name = reply->atom; \
free(reply); \
} while (0);
#include "atoms.xmacro"
#undef xmacro
/* Set dock mode */
xcb_change_property(conn,
XCB_PROP_MODE_REPLACE,
win,
A__NET_WM_WINDOW_TYPE,
A_ATOM,
32,
1,
(unsigned char*) &A__NET_WM_WINDOW_TYPE_DIALOG);
/* Set window title */
xcb_change_property(conn,
XCB_PROP_MODE_REPLACE,
win,
A__NET_WM_NAME,
A_UTF8_STRING,
8,
strlen("i3: first configuration"),
"i3: first configuration");
/* Create pixmap */
pixmap = xcb_generate_id(conn);
pixmap_gc = xcb_generate_id(conn);
xcb_create_pixmap(conn, root_screen->root_depth, pixmap, win, 500, 500);
xcb_create_gc(conn, pixmap_gc, pixmap, 0, 0);
/* Grab the keyboard to get all input */
xcb_flush(conn);
/* Try (repeatedly, if necessary) to grab the keyboard. We might not
* get the keyboard at the first attempt because of the keybinding
* still being active when started via a wm’s keybinding. */
xcb_grab_keyboard_cookie_t cookie;
xcb_grab_keyboard_reply_t *reply = NULL;
int count = 0;
while ((reply == NULL || reply->status != XCB_GRAB_STATUS_SUCCESS) && (count++ < 500)) {
cookie = xcb_grab_keyboard(conn, false, win, XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
reply = xcb_grab_keyboard_reply(conn, cookie, NULL);
usleep(1000);
}
if (reply->status != XCB_GRAB_STATUS_SUCCESS) {
fprintf(stderr, "Could not grab keyboard, status = %d\n", reply->status);
exit(-1);
}
xcb_flush(conn);
xcb_generic_event_t *event;
while ((event = xcb_wait_for_event(conn)) != NULL) {
if (event->response_type == 0) {
fprintf(stderr, "X11 Error received! sequence %x\n", event->sequence);
continue;
}
/* Strip off the highest bit (set if the event is generated) */
int type = (event->response_type & 0x7F);
switch (type) {
case XCB_KEY_PRESS:
handle_key_press(NULL, conn, (xcb_key_press_event_t*)event);
break;
/* TODO: handle mappingnotify */
case XCB_BUTTON_PRESS:
handle_button_press((xcb_button_press_event_t*)event);
break;
case XCB_EXPOSE:
handle_expose();
break;
}
free(event);
}
return 0;
}
// http://svn.tribler.org/vlc/trunk/modules/control/globalhotkeys/xcb.c
// Copyright (C) 2009 the VideoLAN team
static unsigned GetModifier( xcb_connection_t *p_connection, xcb_key_symbols_t *p_symbols, xcb_keysym_t sym )
{
static const unsigned pi_mask[8] = {
XCB_MOD_MASK_SHIFT, XCB_MOD_MASK_LOCK, XCB_MOD_MASK_CONTROL,
XCB_MOD_MASK_1, XCB_MOD_MASK_2, XCB_MOD_MASK_3,
XCB_MOD_MASK_4, XCB_MOD_MASK_5
};
if( sym == 0 )
return 0; /* no modifier */
#ifdef XCB_KEYSYM_OLD_API /* as seen in Debian Lenny */
const xcb_keycode_t key = xcb_key_symbols_get_keycode( p_symbols, sym );
if( key == 0 )
return 0;
#else
const xcb_keycode_t *p_keys = xcb_key_symbols_get_keycode( p_symbols, sym );
if( !p_keys )
return 0;
int i = 0;
bool no_modifier = true;
while( p_keys[i] != XCB_NO_SYMBOL )
{
if( p_keys[i] != 0 )
{
no_modifier = false;
break;
}
i++;
}
if( no_modifier )
return 0;
#endif
xcb_get_modifier_mapping_cookie_t r =
xcb_get_modifier_mapping( p_connection );
xcb_get_modifier_mapping_reply_t *p_map =
xcb_get_modifier_mapping_reply( p_connection, r, NULL );
if( !p_map )
return 0;
xcb_keycode_t *p_keycode = xcb_get_modifier_mapping_keycodes( p_map );
if( !p_keycode )
return 0;
for( int i = 0; i < 8; i++ )
for( int j = 0; j < p_map->keycodes_per_modifier; j++ )
#ifdef XCB_KEYSYM_OLD_API /* as seen in Debian Lenny */
if( p_keycode[i * p_map->keycodes_per_modifier + j] == key )
{
free( p_map );
return pi_mask[i];
}
#else
for( int k = 0; p_keys[k] != XCB_NO_SYMBOL; k++ )
if( p_keycode[i*p_map->keycodes_per_modifier + j] == p_keys[k])
{
free( p_map );
return pi_mask[i];
}
#endif
free( p_map ); // FIXME to check
return 0;
}