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i3-input: Bugfix: repeatedly grab the keyboard if it does not succeed 

This should fix ticket #175
This commit is contained in:
Michael Stapelberg 2010-03-03 10:08:17 +01:00
parent 3cfe1b35e0
commit 5dd5956241
1 changed files with 23 additions and 1 deletions
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24
i3-input/main.c
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@ -306,11 +306,33 @@ int main(int argc, char *argv[]) {
xcb_create_pixmap(conn, root_screen->root_depth, pixmap, win, 500, font_height + 8); xcb_create_pixmap(conn, root_screen->root_depth, pixmap, win, 500, font_height + 8);
xcb_create_gc(conn, pixmap_gc, pixmap, 0, 0); xcb_create_gc(conn, pixmap_gc, pixmap, 0, 0);
/* Set input focus (we have override_redirect=1, so the wm will not do
* this for us) */
xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, win, XCB_CURRENT_TIME);
/* Create graphics context */ /* Create graphics context */
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FONT, font_id); xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FONT, font_id);
/* Grab the keyboard to get all input */ /* Grab the keyboard to get all input */
xcb_grab_keyboard(conn, false, win, XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC); 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_flush(conn);