slock-quickcancel-1.6.diff (2103B)
1 From: Matthias Schoth <mschoth@gmail.com> 2 Date: Sat, 11 Jul 2026 11:15:49 +0200 3 Subject: [PATCH] Apply quickcancel 4 5 Cancel slock by moving the mouse within a certain time-period after 6 slock started. The time-period can be defined in seconds with the 7 setting *timetocancel* in the config.h. This is useful if you forgot to 8 disable `xautolock` during an activity that requires no input (e.g. 9 reading text, watching video). 10 11 Changes from the 1.4 version: use CLOCK_MONOTONIC instead of time(NULL) 12 to prevent bypassing the lock by setting the system clock back. 13 14 --- 15 config.def.h | 3 +++ 16 slock.c | 9 +++++++++ 17 2 files changed, 12 insertions(+) 18 19 diff --git a/config.def.h b/config.def.h 20 index 9855e21..e0bf95a 100644 21 --- a/config.def.h 22 +++ b/config.def.h 23 @@ -10,3 +10,6 @@ static const char *colorname[NUMCOLS] = { 24 25 /* treat a cleared input like a wrong password (color) */ 26 static const int failonclear = 1; 27 + 28 +/* time in seconds to cancel lock with mouse movement */ 29 +static const int timetocancel = 4; 30 diff --git a/slock.c b/slock.c 31 index f16781f..212b482 100644 32 --- a/slock.c 33 +++ b/slock.c 34 @@ -13,6 +13,7 @@ 35 #include <stdio.h> 36 #include <string.h> 37 #include <unistd.h> 38 +#include <time.h> 39 #include <spawn.h> 40 #include <sys/types.h> 41 #include <X11/extensions/Xrandr.h> 42 @@ -25,6 +26,8 @@ 43 44 char *argv0; 45 46 +static struct timespec locktime; 47 + 48 enum { 49 INIT, 50 INPUT, 51 @@ -142,6 +145,9 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens, 52 oldc = INIT; 53 54 while (running && !XNextEvent(dpy, &ev)) { 55 + struct timespec now; 56 + clock_gettime(CLOCK_MONOTONIC, &now); 57 + running = !((now.tv_sec - locktime.tv_sec < timetocancel) && (ev.type == MotionNotify)); 58 if (ev.type == KeyPress) { 59 explicit_bzero(&buf, sizeof(buf)); 60 num = XLookupString(&ev.xkey, buf, sizeof(buf), &ksym, 0); 61 @@ -280,6 +286,7 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen) 62 XRRSelectInput(dpy, lock->win, RRScreenChangeNotifyMask); 63 64 XSelectInput(dpy, lock->root, SubstructureNotifyMask); 65 + clock_gettime(CLOCK_MONOTONIC, &locktime); 66 return lock; 67 } 68 69 -- 70 2.23.0