void X11WindowedBackend::grabKeyboard(xcb_timestamp_t time)
{
const bool oldState = m_keyboardGrabbed;
if (m_keyboardGrabbed) {
xcb_ungrab_keyboard(m_connection, time);
xcb_ungrab_pointer(m_connection, time);
m_keyboardGrabbed = false;
} else {
const auto c = xcb_grab_keyboard_unchecked(m_connection, false, window(), time,
XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
ScopedCPointer<xcb_grab_keyboard_reply_t> grab(xcb_grab_keyboard_reply(m_connection, c, nullptr));
if (grab.isNull()) {
return;
}
if (grab->status == XCB_GRAB_STATUS_SUCCESS) {
const auto c = xcb_grab_pointer_unchecked(m_connection, false, window(),
XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE |
XCB_EVENT_MASK_POINTER_MOTION |
XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW,
XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
window(), XCB_CURSOR_NONE, time);
ScopedCPointer<xcb_grab_pointer_reply_t> grab(xcb_grab_pointer_reply(m_connection, c, nullptr));
if (grab.isNull() || grab->status != XCB_GRAB_STATUS_SUCCESS) {
xcb_ungrab_keyboard(m_connection, time);
return;
}
m_keyboardGrabbed = true;
}
}
if (oldState != m_keyboardGrabbed) {
updateWindowTitle();
xcb_flush(m_connection);
}
}
/** Grab the mouse.
* \param cursor The cursor to use while grabbing.
* \return True if mouse was grabbed.
*/
static bool
mousegrabber_grab(xcb_cursor_t cursor)
{
xcb_window_t root = globalconf.screen->root;
for(int i = 1000; i; i--)
{
xcb_grab_pointer_reply_t *grab_ptr_r;
xcb_grab_pointer_cookie_t grab_ptr_c =
xcb_grab_pointer_unchecked(globalconf.connection, false, root,
XCB_EVENT_MASK_BUTTON_PRESS
| XCB_EVENT_MASK_BUTTON_RELEASE
| XCB_EVENT_MASK_POINTER_MOTION,
XCB_GRAB_MODE_ASYNC,
XCB_GRAB_MODE_ASYNC,
root, cursor, XCB_CURRENT_TIME);
if((grab_ptr_r = xcb_grab_pointer_reply(globalconf.connection, grab_ptr_c, NULL)))
{
p_delete(&grab_ptr_r);
return true;
}
usleep(1000);
}
return false;
}
void WindowSelector::start(std::function<void(KWin::Toplevel*)> callback, const QByteArray &cursorName)
{
xcb_cursor_t cursor = createCursor(cursorName);
if (m_active) {
callback(nullptr);
return;
}
xcb_connection_t *c = connection();
ScopedCPointer<xcb_grab_pointer_reply_t> grabPointer(xcb_grab_pointer_reply(c, xcb_grab_pointer_unchecked(c, false, rootWindow(),
XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE |
XCB_EVENT_MASK_POINTER_MOTION |
XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW,
XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, XCB_WINDOW_NONE,
cursor, XCB_TIME_CURRENT_TIME), NULL));
if (grabPointer.isNull() || grabPointer->status != XCB_GRAB_STATUS_SUCCESS) {
callback(nullptr);
return;
}
m_active = grabXKeyboard();
if (!m_active) {
xcb_ungrab_pointer(connection(), XCB_TIME_CURRENT_TIME);
callback(nullptr);
return;
}
grabXServer();
m_callback = callback;
}
/*
* Repeatedly tries to grab pointer and keyboard (up to 1000 times).
*
*/
void grab_pointer_and_keyboard(xcb_connection_t *conn, xcb_screen_t *screen, xcb_cursor_t cursor) {
xcb_grab_pointer_cookie_t pcookie;
xcb_grab_pointer_reply_t *preply;
xcb_grab_keyboard_cookie_t kcookie;
xcb_grab_keyboard_reply_t *kreply;
int tries = 10000;
while (tries-- > 0) {
pcookie = xcb_grab_pointer(
conn,
false, /* get all pointer events specified by the following mask */
screen->root, /* grab the root window */
XCB_NONE, /* which events to let through */
XCB_GRAB_MODE_ASYNC, /* pointer events should continue as normal */
XCB_GRAB_MODE_ASYNC, /* keyboard mode */
XCB_NONE, /* confine_to = in which window should the cursor stay */
cursor, /* we change the cursor to whatever the user wanted */
XCB_CURRENT_TIME
);
if ((preply = xcb_grab_pointer_reply(conn, pcookie, NULL)) &&
preply->status == XCB_GRAB_STATUS_SUCCESS) {
free(preply);
break;
}
/* Make this quite a bit slower */
usleep(50);
}
while (tries-- > 0) {
kcookie = xcb_grab_keyboard(
conn,
true, /* report events */
screen->root, /* grab the root window */
XCB_CURRENT_TIME,
XCB_GRAB_MODE_ASYNC, /* process events as normal, do not require sync */
XCB_GRAB_MODE_ASYNC
);
if ((kreply = xcb_grab_keyboard_reply(conn, kcookie, NULL)) &&
kreply->status == XCB_GRAB_STATUS_SUCCESS) {
free(kreply);
break;
}
/* Make this quite a bit slower */
usleep(50);
}
if (tries <= 0)
errx(EXIT_FAILURE, "Cannot grab pointer/keyboard");
}
bool grab_pointer(pointer_action_t pac)
{
xcb_window_t win = XCB_NONE;
xcb_point_t pos;
query_pointer(&win, &pos);
coordinates_t loc;
if (!locate_window(win, &loc)) {
if (pac == ACTION_FOCUS) {
monitor_t *m = monitor_from_point(pos);
if (m != NULL && m != mon && (win == XCB_NONE || win == m->root)) {
focus_node(m, m->desk, m->desk->focus);
return true;
}
}
return false;
}
if (pac == ACTION_FOCUS) {
if (loc.node != mon->desk->focus) {
focus_node(loc.monitor, loc.desktop, loc.node);
return true;
} else if (focus_follows_pointer) {
stack(loc.desktop, loc.node, true);
}
return false;
}
if (loc.node->client->state == STATE_FULLSCREEN) {
return true;
}
xcb_grab_pointer_reply_t *reply = xcb_grab_pointer_reply(dpy, xcb_grab_pointer(dpy, 0, root, XCB_EVENT_MASK_BUTTON_RELEASE|XCB_EVENT_MASK_BUTTON_MOTION, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, XCB_NONE, XCB_NONE, XCB_CURRENT_TIME), NULL);
if (reply == NULL || reply->status != XCB_GRAB_STATUS_SUCCESS) {
free(reply);
return true;
}
free(reply);
if (pac == ACTION_MOVE) {
put_status(SBSC_MASK_POINTER_ACTION, "pointer_action 0x%08X 0x%08X 0x%08X move begin\n", loc.monitor->id, loc.desktop->id, loc.node->id);
} else if (pac == ACTION_RESIZE_CORNER) {
put_status(SBSC_MASK_POINTER_ACTION, "pointer_action 0x%08X 0x%08X 0x%08X resize_corner begin\n", loc.monitor->id, loc.desktop->id, loc.node->id);
} else if (pac == ACTION_RESIZE_SIDE) {
put_status(SBSC_MASK_POINTER_ACTION, "pointer_action 0x%08X 0x%08X 0x%08X resize_side begin\n", loc.monitor->id, loc.desktop->id, loc.node->id);
}
track_pointer(loc, pac, pos);
return true;
}
void menuwin_grab_mouse() {
if (key_win.mouse_grabed==0) {
xcb_grab_pointer_cookie_t grab_cookie;
xcb_grab_pointer_reply_t *grab_reply;
uint16_t mask=XCB_EVENT_MASK_BUTTON_RELEASE|XCB_EVENT_MASK_BUTTON_PRESS|XCB_EVENT_MASK_LEAVE_WINDOW;
grab_cookie=xcb_grab_pointer(conn,1,key_win.window,mask,XCB_GRAB_MODE_ASYNC,XCB_GRAB_MODE_ASYNC,XCB_WINDOW_NONE,XCB_CURSOR_NONE,XCB_CURRENT_TIME);
xcb_flush(conn);
grab_reply=xcb_grab_pointer_reply(conn,grab_cookie,0);
if (grab_reply->status==0) {
key_win.mouse_grabed=1;
}
free(grab_reply);
}
}
static bool grab_pointer(xcb_connection_t *conn, xcb_screen_t *screen) {
xcb_grab_pointer_cookie_t cookie = xcb_grab_pointer(conn,
false,
screen->root,
XCB_NONE,
XCB_GRAB_MODE_ASYNC,
XCB_GRAB_MODE_ASYNC,
XCB_NONE,
XCB_NONE,
XCB_CURRENT_TIME);
xcb_grab_pointer_reply_t *reply;
if ((reply = xcb_grab_pointer_reply(conn, cookie, NULL))) {
if (reply->status == XCB_GRAB_STATUS_SUCCESS) {
free(reply);
return true;
}
free(reply);
}
return false;
}
/** Grab the mouse.
* \param cursor The cursor to use while grabbing.
* \return True if mouse was grabbed.
*/
static bool
mousegrabber_grab(xcb_cursor_t cursor)
{
xcb_window_t root = XCB_NONE;
for(int screen = 0;
screen < xcb_setup_roots_length(xcb_get_setup(globalconf.connection));
screen++)
{
int16_t x, y;
uint16_t mask;
root = xutil_screen_get(globalconf.connection, screen)->root;
if(mouse_query_pointer(root, &x, &y, NULL, &mask))
break;
}
for(int i = 1000; i; i--)
{
xcb_grab_pointer_reply_t *grab_ptr_r;
xcb_grab_pointer_cookie_t grab_ptr_c =
xcb_grab_pointer_unchecked(globalconf.connection, false, root,
XCB_EVENT_MASK_BUTTON_PRESS
| XCB_EVENT_MASK_BUTTON_RELEASE
| XCB_EVENT_MASK_POINTER_MOTION,
XCB_GRAB_MODE_ASYNC,
XCB_GRAB_MODE_ASYNC,
root, cursor, XCB_CURRENT_TIME);
if((grab_ptr_r = xcb_grab_pointer_reply(globalconf.connection, grab_ptr_c, NULL)))
{
p_delete(&grab_ptr_r);
return true;
}
usleep(1000);
}
return false;
}
static void
towel_window_grab_input(towel_window_t *win)
{
xcb_grab_pointer_cookie_t pointer_cookie;
xcb_grab_keyboard_cookie_t keyboard_cookie;
xcb_grab_pointer_reply_t *pointer_reply;
xcb_grab_keyboard_reply_t *keyboard_reply;
pointer_cookie = xcb_grab_pointer_unchecked(win->conn, 0, win->id,
XCB_EVENT_MASK_NO_EVENT,
XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
win->id,
XCB_CURSOR_NONE, XCB_TIME_CURRENT_TIME);
keyboard_cookie = xcb_grab_keyboard_unchecked(win->conn, 0, win->id,
XCB_TIME_CURRENT_TIME,
XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
pointer_reply = xcb_grab_pointer_reply(win->conn, pointer_cookie, NULL);
keyboard_reply = xcb_grab_keyboard_reply(win->conn, keyboard_cookie, NULL);
#if DEBUG
fprintf(stderr, "p: %d, k: %d\n", pointer_reply->status, keyboard_reply->status);
#endif
free(pointer_reply);
free(keyboard_reply);
}
xcb_window_t Select_Window(xcb_connection_t *dpy,
const xcb_screen_t *screen,
int descend)
{
xcb_cursor_t cursor;
xcb_generic_event_t *event;
xcb_window_t target_win = XCB_WINDOW_NONE;
xcb_window_t root = screen->root;
int buttons = 0;
xcb_generic_error_t *err;
xcb_grab_pointer_cookie_t grab_cookie;
xcb_grab_pointer_reply_t *grab_reply;
/* Make the target cursor */
cursor = Create_Font_Cursor (dpy, XC_crosshair);
/* Grab the pointer using target cursor, letting it room all over */
grab_cookie = xcb_grab_pointer
(dpy, False, root,
XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE,
XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC,
root, cursor, XCB_TIME_CURRENT_TIME);
grab_reply = xcb_grab_pointer_reply (dpy, grab_cookie, &err);
if (grab_reply->status != XCB_GRAB_STATUS_SUCCESS)
Fatal_Error ("Can't grab the mouse.");
/* Let the user select a window... */
while ((target_win == XCB_WINDOW_NONE) || (buttons != 0)) {
/* allow one more event */
xcb_allow_events (dpy, XCB_ALLOW_SYNC_POINTER, XCB_TIME_CURRENT_TIME);
xcb_flush (dpy);
event = xcb_wait_for_event (dpy);
switch (event->response_type & 0x7f) {
case XCB_BUTTON_PRESS:
{
xcb_button_press_event_t *bp = (xcb_button_press_event_t *)event;
if (target_win == XCB_WINDOW_NONE) {
target_win = bp->child; /* window selected */
if (target_win == XCB_WINDOW_NONE)
target_win = root;
}
buttons++;
break;
}
case XCB_BUTTON_RELEASE:
if (buttons > 0) /* there may have been some down before we started */
buttons--;
break;
default:
/* just discard all other events */
break;
}
free (event);
}
xcb_ungrab_pointer (dpy, XCB_TIME_CURRENT_TIME); /* Done with pointer */
if (!descend || (target_win == root))
return (target_win);
target_win = Find_Client (dpy, root, target_win);
return (target_win);
}
/*
* Repeatedly tries to grab pointer and keyboard (up to the specified number of
* tries).
*
* Returns true if the grab succeeded, false if not.
*
*/
bool grab_pointer_and_keyboard(xcb_connection_t *conn, xcb_screen_t *screen, xcb_cursor_t cursor, int tries) {
xcb_grab_pointer_cookie_t pcookie;
xcb_grab_pointer_reply_t *preply;
xcb_grab_keyboard_cookie_t kcookie;
xcb_grab_keyboard_reply_t *kreply;
const suseconds_t screen_redraw_timeout = 100000; /* 100ms */
/* Using few variables to trigger a redraw_screen() if too many tries */
bool redrawn = false;
struct timeval start;
if (gettimeofday(&start, NULL) == -1) {
err(EXIT_FAILURE, "gettimeofday");
}
while (tries-- > 0) {
pcookie = xcb_grab_pointer(
conn,
false, /* get all pointer events specified by the following mask */
screen->root, /* grab the root window */
XCB_NONE, /* which events to let through */
XCB_GRAB_MODE_ASYNC, /* pointer events should continue as normal */
XCB_GRAB_MODE_ASYNC, /* keyboard mode */
XCB_NONE, /* confine_to = in which window should the cursor stay */
cursor, /* we change the cursor to whatever the user wanted */
XCB_CURRENT_TIME);
if ((preply = xcb_grab_pointer_reply(conn, pcookie, NULL)) &&
preply->status == XCB_GRAB_STATUS_SUCCESS) {
free(preply);
break;
}
/* Make this quite a bit slower */
usleep(50);
struct timeval now;
if (gettimeofday(&now, NULL) == -1) {
err(EXIT_FAILURE, "gettimeofday");
}
struct timeval elapsed;
timersub(&now, &start, &elapsed);
if (!redrawn &&
(tries % 100) == 0 &&
elapsed.tv_usec >= screen_redraw_timeout) {
redraw_screen();
redrawn = true;
}
}
while (tries-- > 0) {
kcookie = xcb_grab_keyboard(
conn,
true, /* report events */
screen->root, /* grab the root window */
XCB_CURRENT_TIME,
XCB_GRAB_MODE_ASYNC, /* process events as normal, do not require sync */
XCB_GRAB_MODE_ASYNC);
if ((kreply = xcb_grab_keyboard_reply(conn, kcookie, NULL)) &&
kreply->status == XCB_GRAB_STATUS_SUCCESS) {
free(kreply);
break;
}
/* Make this quite a bit slower */
usleep(50);
struct timeval now;
if (gettimeofday(&now, NULL) == -1) {
err(EXIT_FAILURE, "gettimeofday");
}
struct timeval elapsed;
timersub(&now, &start, &elapsed);
/* Trigger a screen redraw if 100ms elapsed */
if (!redrawn &&
(tries % 100) == 0 &&
elapsed.tv_usec >= screen_redraw_timeout) {
redraw_screen();
redrawn = true;
}
}
return (tries > 0);
}
int main(void)
{
xcb_connection_t *c;
xcb_screen_t *s;
xcb_window_t w;
xcb_gcontext_t g;
xcb_generic_event_t *e;
uint32_t mask;
uint32_t values[2];
int done = 0;
/* open connection with the server */
c = xcb_connect(NULL,NULL);
if (xcb_connection_has_error(c)) {
printf("Cannot open display\n");
exit(1);
}
/* get the first screen */
s = xcb_setup_roots_iterator( xcb_get_setup(c) ).data;
G.conn = c;
G.s= s;
//enable mouse event
xcb_cursor_t cursor;
xcb_font_t cursor_font=0;
short glyph = 0x34; //cross
xcb_grab_pointer_cookie_t grab_cookie;
xcb_grab_pointer_reply_t *grab_reply;
xcb_generic_error_t *err;
cursor = xcb_generate_id (c);
if (!cursor_font) {
cursor_font = xcb_generate_id (c);
xcb_open_font (c, cursor_font, strlen ("cursor"), "cursor");
}
xcb_create_glyph_cursor (c, cursor, cursor_font, cursor_font,
glyph, glyph + 1,
0, 0, 0, 0xffff, 0xffff, 0xffff); /* rgb, rgb */
grab_cookie = xcb_grab_pointer(c, 0, s->root,
XCB_EVENT_MASK_POINTER_MOTION |
XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE,
XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC,
s->root, cursor, XCB_TIME_CURRENT_TIME);
assert(grab_reply!=NULL);
grab_reply = xcb_grab_pointer_reply (c, grab_cookie, &err);
if (grab_reply->status != XCB_GRAB_STATUS_SUCCESS)
printf("Can't grab the mouse.");
printf("grab pointer cookie=0x%x\n", grab_cookie);
xcb_allow_events (c, XCB_ALLOW_ASYNC_POINTER, XCB_TIME_CURRENT_TIME); xcb_flush (c);
// xcb_allow_events (c, XCB_ALLOW_SYNC_POINTER, XCB_TIME_CURRENT_TIME); xcb_flush (c);
while (!done ) {
e = xcb_wait_for_event(c);
if(e==NULL) printf("wait event error\n");
//printf("\revent=>%d", e->response_type);
switch (e->response_type & ~0x80) {
case XCB_EXPOSE: /* draw or redraw the window */
printf("XCB_EXPOSE\n");
draw_gc(w);
break;
case XCB_MOTION_NOTIFY:
{
static xcb_window_t oldw;
xcb_button_press_event_t *bp = (xcb_button_press_event_t *)e;
w = bp->child; /* window selected */
if(oldw!=w){
oldw = w;
printf("windowid = %x\n", w);
}
//draw it
draw_gc(w);
}
break;
case XCB_BUTTON_PRESS:
{
xcb_button_press_event_t *bp = (xcb_button_press_event_t *)e;
w = bp->child; /* window selected */
if (w== XCB_WINDOW_NONE){
printf("window select is root\n");
w=s->root;
}
else
printf("window = %x\n", w);
draw_gc(w);
done=1; printf("grab a child\n");
break;
}
}
free(e);
}
xcb_ungrab_pointer(c, XCB_TIME_CURRENT_TIME);
draw_byxid(w);
return 0;
#if 0
/* create window */
w = xcb_generate_id(c);
mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
values[0] = s->white_pixel;
values[1] = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS;
xcb_create_window(c, s->root_depth, w, s->root,
10, 10, 100, 100, 1,
XCB_WINDOW_CLASS_INPUT_OUTPUT, s->root_visual,
mask, values);
/* map (show) the window */
xcb_map_window(c, w);
xcb_flush(c);
/* event loop */
while (!done && (e = xcb_wait_for_event(c))) {
switch (e->response_type & ~0x80) {
case XCB_EXPOSE: /* draw or redraw the window */
xcb_poly_fill_rectangle(c, w, g, 1, &r);
xcb_flush(c);
break;
case XCB_KEY_PRESS: /* exit on key press */
//gwj done = 1;
break;
}
free(e);
}
/* close connection to server */
xcb_disconnect(c);
return 0;
if(0){
//draw image with xcb_put_image
// creat gc and draw to parent window
xcb_gcontext_t g;
g = xcb_generate_id(c);
xcb_create_gc(c, g, child, 0,NULL);
//xcb_poly_fill_rectangle(c, w, g, 1, &r); xcb_flush(c);
int psize=geo->width * geo->height* (geo->depth/8);
uint8_t *pbuf = malloc(psize);
xcb_void_cookie_t ck;
printf("malloc pbuf=0x%x size=%d\n",pbuf, psize);
memset(pbuf, 0x18, psize);
ck = xcb_put_image_checked(c, XCB_IMAGE_FORMAT_Z_PIXMAP,
child, g,
geo->width, geo->height , 0, 0,
0, geo->depth,
psize, pbuf);
//BadMatch=8 BadLength=16
xcb_generic_error_t *err;
err = xcb_request_check (c, ck);
if (err)
{
int code = err->error_code;
free (err);
printf("put image error %d\n", code);
assert (code != 0);
}
}
printf("depth =%d\n", geo->depth);
/* create black graphics context */
#endif
}
/*
* Repeatedly tries to grab pointer and keyboard (up to 10000 times).
*
*/
void grab_pointer_and_keyboard(xcb_connection_t *conn, xcb_screen_t *screen, xcb_cursor_t cursor) {
xcb_grab_pointer_cookie_t pcookie;
xcb_grab_pointer_reply_t *preply;
xcb_grab_keyboard_cookie_t kcookie;
xcb_grab_keyboard_reply_t *kreply;
int tries = 10000;
/* Using few variables to trigger a redraw_screen() if too many tries */
bool redrawn = false;
time_t start = clock();
while (tries-- > 0) {
pcookie = xcb_grab_pointer(
conn,
false, /* get all pointer events specified by the following mask */
screen->root, /* grab the root window */
XCB_NONE, /* which events to let through */
XCB_GRAB_MODE_ASYNC, /* pointer events should continue as normal */
XCB_GRAB_MODE_ASYNC, /* keyboard mode */
XCB_NONE, /* confine_to = in which window should the cursor stay */
cursor, /* we change the cursor to whatever the user wanted */
XCB_CURRENT_TIME);
if ((preply = xcb_grab_pointer_reply(conn, pcookie, NULL)) &&
preply->status == XCB_GRAB_STATUS_SUCCESS) {
free(preply);
break;
}
/* Make this quite a bit slower */
usleep(50);
/* Measure elapsed time and trigger a screen redraw if elapsed > 250000 */
if (!redrawn &&
(tries % 100) == 0 &&
(clock() - start) > 250000) {
redraw_screen();
redrawn = true;
}
}
while (tries-- > 0) {
kcookie = xcb_grab_keyboard(
conn,
true, /* report events */
screen->root, /* grab the root window */
XCB_CURRENT_TIME,
XCB_GRAB_MODE_ASYNC, /* process events as normal, do not require sync */
XCB_GRAB_MODE_ASYNC);
if ((kreply = xcb_grab_keyboard_reply(conn, kcookie, NULL)) &&
kreply->status == XCB_GRAB_STATUS_SUCCESS) {
free(kreply);
break;
}
/* Make this quite a bit slower */
usleep(50);
/* Measure elapsed time and trigger a screen redraw if elapsed > 250000 */
if (!redrawn &&
(tries % 100) == 0 &&
(clock() - start) > 250000) {
redraw_screen();
redrawn = true;
}
}
/* After trying for 10000 times, i3lock will display an error message
* for 2 sec prior to terminate. */
if (tries <= 0) {
pam_state = STATE_I3LOCK_LOCK_FAILED;
redraw_screen();
sleep(1);
errx(EXIT_FAILURE, "Cannot grab pointer/keyboard");
}
}
static void
ephyrProcessKeyRelease(xcb_generic_event_t *xev)
{
xcb_connection_t *conn = hostx_get_xcbconn();
xcb_key_release_event_t *key = (xcb_key_release_event_t *)xev;
static xcb_key_symbols_t *keysyms;
static int grabbed_screen = -1;
int mod1_down = ephyrUpdateGrabModifierState(key->state);
if (!keysyms)
keysyms = xcb_key_symbols_alloc(conn);
if (!EphyrWantNoHostGrab &&
(((xcb_key_symbols_get_keysym(keysyms, key->detail, 0) == XK_Shift_L
|| xcb_key_symbols_get_keysym(keysyms, key->detail, 0) == XK_Shift_R)
&& (key->state & XCB_MOD_MASK_CONTROL)) ||
((xcb_key_symbols_get_keysym(keysyms, key->detail, 0) == XK_Control_L
|| xcb_key_symbols_get_keysym(keysyms, key->detail, 0) == XK_Control_R)
&& (key->state & XCB_MOD_MASK_SHIFT)))) {
KdScreenInfo *screen = screen_from_window(key->event);
EphyrScrPriv *scrpriv = screen->driver;
if (grabbed_screen != -1) {
xcb_ungrab_keyboard(conn, XCB_TIME_CURRENT_TIME);
xcb_ungrab_pointer(conn, XCB_TIME_CURRENT_TIME);
grabbed_screen = -1;
hostx_set_win_title(screen,
"(ctrl+shift grabs mouse and keyboard)");
}
else if (!mod1_down) {
/* Attempt grab */
xcb_grab_keyboard_cookie_t kbgrabc =
xcb_grab_keyboard(conn,
TRUE,
scrpriv->win,
XCB_TIME_CURRENT_TIME,
XCB_GRAB_MODE_ASYNC,
XCB_GRAB_MODE_ASYNC);
xcb_grab_keyboard_reply_t *kbgrabr;
xcb_grab_pointer_cookie_t pgrabc =
xcb_grab_pointer(conn,
TRUE,
scrpriv->win,
0,
XCB_GRAB_MODE_ASYNC,
XCB_GRAB_MODE_ASYNC,
scrpriv->win,
XCB_NONE,
XCB_TIME_CURRENT_TIME);
xcb_grab_pointer_reply_t *pgrabr;
kbgrabr = xcb_grab_keyboard_reply(conn, kbgrabc, NULL);
if (!kbgrabr || kbgrabr->status != XCB_GRAB_STATUS_SUCCESS) {
xcb_discard_reply(conn, pgrabc.sequence);
xcb_ungrab_pointer(conn, XCB_TIME_CURRENT_TIME);
} else {
pgrabr = xcb_grab_pointer_reply(conn, pgrabc, NULL);
if (!pgrabr || pgrabr->status != XCB_GRAB_STATUS_SUCCESS)
{
xcb_ungrab_keyboard(conn,
XCB_TIME_CURRENT_TIME);
} else {
grabbed_screen = scrpriv->mynum;
hostx_set_win_title
(screen,
"(ctrl+shift releases mouse and keyboard)");
}
}
}
}
if (!ephyrKbd ||
!((EphyrKbdPrivate *) ephyrKbd->driverPrivate)->enabled) {
return;
}
/* Still send the release event even if above has happened server
* will get confused with just an up event. Maybe it would be
* better to just block shift+ctrls getting to kdrive all
* together.
*/
ephyrUpdateModifierState(key->state);
KdEnqueueKeyboardEvent(ephyrKbd, key->detail, TRUE);
}
int main(int argc,char**argv){
xcb_connection_t*d=xcb_connect(0,0);
int32_t*x,*y,*tx=0,mx,my,rt=xcb_setup_roots_iterator(xcb_get_setup(d)).data->root,cs[255],*cz=cs+1;
uint8_t mz,mZ;
xcb_change_window_attributes(d,rt,XCB_CW_EVENT_MASK,&cwa);
xcb_grab_key(d,1,rt,0,64,XCB_GRAB_MODE_ASYNC,XCB_GRAB_MODE_ASYNC);
xcb_grab_key(d,1,rt,8,XCB_GRAB_ANY,XCB_GRAB_MODE_ASYNC,XCB_GRAB_MODE_ASYNC);
xcb_grab_button(d,1,rt,XCB_EVENT_MASK_BUTTON_PRESS,XCB_GRAB_MODE_ASYNC,XCB_GRAB_MODE_ASYNC,XCB_NONE,XCB_NONE,XCB_GRAB_ANY,8);
#ifdef COMPOSITE
xcb_composite_redirect_subwindows(d,rt,XCB_COMPOSITE_REDIRECT_AUTOMATIC);
#endif
xcb_generic_event_t*e=0;
main:xcb_flush(d);
waitpid(-1,0,WNOHANG);
noflush:x=y=cz-1;
again:free(e);
switch((e=xcb_wait_for_event(d))->response_type&127){
case XCB_BUTTON_PRESS:
for(;x>cs;x--)
if(*x==((xcb_button_press_event_t*)e)->child){
if(((xcb_key_press_event_t*)e)->detail==2)goto pocus;
case XCB_KEY_PRESS:
mz=128|((xcb_key_press_event_t*)e)->detail;
my=((xcb_key_press_event_t*)e)->state;
goto*(cz==cs+1?&&kcode:&&stack);
}
goto noflush;
case XCB_KEY_RELEASE:
if(((xcb_key_press_event_t*)e)->detail!=64||!tx)default:goto again;
xt:x=tx;
tx=0;
goto stack;
case XCB_CONFIGURE_REQUEST:{
void*p=buf;
for(mz=0;mz<5;mz++)
if(((xcb_configure_request_event_t*)e)->value_mask&1<<mz){*(uint32_t*)p=*(int16_t*)(((void*)e)+16+mz*2);p+=4;}
if(((xcb_configure_request_event_t*)e)->value_mask&XCB_CONFIG_WINDOW_SIBLING){*(uint32_t*)p=((xcb_configure_request_event_t*)e)->sibling;p+=4;}
if(mz=((xcb_configure_request_event_t*)e)->value_mask&XCB_CONFIG_WINDOW_STACK_MODE)*(uint32_t*)p=((xcb_configure_request_event_t*)e)->stack_mode;
xcb_configure_window(d,((xcb_configure_request_event_t*)e)->window,((xcb_configure_request_event_t*)e)->value_mask,buf);
if(mz){
p=xcb_query_tree_reply(d,xcb_query_tree_unchecked(d,rt),0);
int32_t*cl=p+32+((xcb_query_tree_reply_t*)p)->children_len*4;
for(y=p+32;y<cl;y++){
for(x=cs+1;x<cz;x++)
if(*x==*y)goto nono;
*y=0;
nono:;
}
x=cs;
for(y=p+32;y<cl;y++)
if(*y)*++x=*y;
free(p);
goto pocus;
}else goto main;}
case XCB_MAP_REQUEST:{
void*p=xcb_get_window_attributes_reply(d,xcb_get_window_attributes_unchecked(d,((xcb_map_request_event_t*)e)->window),0);
if(((xcb_get_window_attributes_reply_t*)p)->override_redirect){
free(p);
goto pocus;
}
free(p);
for(;x>cs;x--)
if(*x==((xcb_map_request_event_t*)e)->window)goto noflush;
xcb_map_window(d,*cz++=((xcb_map_request_event_t*)e)->window);
goto hocus;}
case XCB_MOTION_NOTIFY:
*buf=mZ&&((xcb_motion_notify_event_t*)e)->root_x<=mx?:((xcb_motion_notify_event_t*)e)->root_x-mx;
buf[1]=mZ&&((xcb_motion_notify_event_t*)e)->root_y<=my?:((xcb_motion_notify_event_t*)e)->root_y-my;
xcb_configure_window(d,*x,mZ?XCB_CONFIG_WINDOW_WIDTH|XCB_CONFIG_WINDOW_HEIGHT:XCB_CONFIG_WINDOW_X|XCB_CONFIG_WINDOW_Y,buf);
goto main;
case XCB_BUTTON_RELEASE:
xcb_ungrab_pointer(d,XCB_CURRENT_TIME);
goto main;
case XCB_UNMAP_NOTIFY:unmap:goto*(x==cs?&&noflush:*x==((xcb_unmap_notify_event_t*)e)->window&&--cz>cs+1?&&stack:(x--,&&unmap));
}
stack:mx=*x;
for(;x!=y;x+=x<y?:-1)*x=x[x<y?:-1];
*x=mx;
hocus:x=cz-1;
xcb_configure_window(d,*x,XCB_CONFIG_WINDOW_STACK_MODE,di);
pocus:xcb_set_input_focus(d,XCB_INPUT_FOCUS_POINTER_ROOT,*x,XCB_CURRENT_TIME);
if(!(mz&128))goto main;
kcode:switch(mz&=127){
void*p;
case 1:case 3:
p=xcb_grab_pointer_reply(d,xcb_grab_pointer_unchecked(d,0,rt,XCB_EVENT_MASK_BUTTON_RELEASE|XCB_EVENT_MASK_POINTER_MOTION,XCB_GRAB_MODE_ASYNC,XCB_GRAB_MODE_ASYNC,XCB_NONE,XCB_NONE,XCB_CURRENT_TIME),0);
if(((xcb_grab_pointer_reply_t*)p)->status!=XCB_GRAB_STATUS_SUCCESS){
free(p);
goto noflush;
}
free(p);
p=xcb_get_geometry_reply(d,xcb_get_geometry_unchecked(d,*y),0);
mx=((xcb_get_geometry_reply_t*)p)->x;
my=((xcb_get_geometry_reply_t*)p)->y;
free(p);
if(mZ=mz==1){
p=xcb_query_pointer_reply(d,xcb_query_pointer_unchecked(d,rt),0);
mx=((xcb_query_pointer_reply_t*)p)->root_x-mx;
my=((xcb_query_pointer_reply_t*)p)->root_y-my;
free(p);
}
goto noflush;
case 23:case 49:
if(cz-cs<3)goto main;
y=tx;
tx=mz==23?(y!=cs+1?(y?:x)-1:x):!y||y==x?cs+1:y+1;
if(y&&y<cz-1){
*buf=y[mz==23?:-1];
buf[1]=mz==23;
xcb_configure_window(d,*y,XCB_CONFIG_WINDOW_SIBLING|XCB_CONFIG_WINDOW_STACK_MODE,buf);
}
xcb_configure_window(d,*tx,XCB_CONFIG_WINDOW_STACK_MODE,di);
goto main;
case 32:return 0;
case 44:
if(cz>cs+1)xcb_configure_window(d,*y,XCB_CONFIG_WINDOW_X|XCB_CONFIG_WINDOW_Y|XCB_CONFIG_WINDOW_WIDTH|XCB_CONFIG_WINDOW_HEIGHT,di);
goto main;
case 46:
if(cz==cs+1)goto main;
if(tx)goto*(mz|=128,&&xt);
{xcb_intern_atom_cookie_t c1=xcb_intern_atom_unchecked(d,0,12,"WM_PROTOCOLS"),c2=xcb_intern_atom_unchecked(d,0,16,"WM_DELETE_WINDOW");
p=xcb_intern_atom_reply(d,c1,0);
mx=((xcb_intern_atom_reply_t*)p)->atom;
free(p);
p=xcb_intern_atom_reply(d,c2,0);}
my=((xcb_intern_atom_reply_t*)p)->atom;
free(p);
p=xcb_get_property_reply(d,xcb_get_property_unchecked(d,0,*y,mx,XCB_ATOM_ATOM,0,-1),0);
xcb_send_event(d,0,*y,XCB_EVENT_MASK_NO_EVENT,(void*)(xcb_client_message_event_t[]){{.response_type=XCB_CLIENT_MESSAGE,.window=*y,.type=mx,.format=32,.data.data32={my,XCB_CURRENT_TIME}}});
