148 lines
4.7 KiB
C
148 lines
4.7 KiB
C
#include <X11/XF86keysym.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <X11/keysym.h>
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#include <X11/Xlib.h>
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static int running = 1;
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static int lastkeysym = NULL;
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static int lastkeyn = 0;
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static int oldbrightness = 10;
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static int screenon = 1;
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static char screentogglecommand[100];
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void
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updatescreen() {
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sprintf(
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screentogglecommand,
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"sh -c 'echo %d > /sys/devices/platform/backlight/backlight/backlight/brightness'",
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screenon ? oldbrightness : 0
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);
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if (screenon) {
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system("sh -c 'echo 1 > /sys/devices/platform/leds/leds/pinephone:blue:user/brightness'");
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system("sh -c 'echo 0 > /sys/devices/platform/leds/leds/pinephone:red:user/brightness'");
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} else {
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system("sh -c 'echo 0 > /sys/devices/platform/leds/leds/pinephone:blue:user/brightness'");
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system("sh -c 'echo 1 > /sys/devices/platform/leds/leds/pinephone:red:user/brightness'");
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}
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system(screentogglecommand);
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}
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void
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cleanupscreen() {
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screenon = 1;
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updatescreen();
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system("sh -c 'echo 0 > /sys/devices/platform/leds/leds/pinephone:red:user/brightness'");
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system("sh -c 'echo 0 > /sys/devices/platform/leds/leds/pinephone:blue:user/brightness'");
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}
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static void die(const char *err, ...) {
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fprintf(stderr, "Error: %s", err);
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cleanupscreen();
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exit(1);
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}
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static void usage(void) {
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die("usage: slock [-v] [cmd [arg ...]]\n");
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}
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// Loosely derived from suckless' slock's lockscreen binding logic but
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// alot more coarse, intentionally so can be triggered while grab_key
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// for dwm multikey path already holding..
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void lockscreen(Display *dpy, int screen) {
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int i, ptgrab, kbgrab;
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//XSetWindowAttributes wa;
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Window root;
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//win,
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root = RootWindow(dpy, screen);
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//wa.override_redirect = 1;
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//win = XCreateWindow(dpy, root, 0, 0,
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// DisplayWidth(dpy, screen),
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// DisplayHeight(dpy, screen),
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// 0, DefaultDepth(dpy, screen),
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// CopyFromParent,
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// DefaultVisual(dpy, screen),
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// CWOverrideRedirect | CWBackPixel, &wa);
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for (i = 0, ptgrab = kbgrab = -1; i < 9999999; i++) {
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if (ptgrab != GrabSuccess) {
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ptgrab = XGrabPointer(dpy, root, False,
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ButtonPressMask | ButtonReleaseMask |
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PointerMotionMask, GrabModeAsync,
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GrabModeAsync, None, None, CurrentTime);
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}
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if (kbgrab != GrabSuccess) {
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kbgrab = XGrabKeyboard(dpy, root, True,
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GrabModeAsync, GrabModeAsync, CurrentTime);
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}
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if (ptgrab == GrabSuccess && kbgrab == GrabSuccess) {
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XSelectInput(dpy, root, SubstructureNotifyMask);
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return;
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}
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usleep(100000);
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}
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return;
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}
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void
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readinputloop(Display *dpy, int screen) {
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KeySym keysym;
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XEvent ev;
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char buf[32];
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while (running && !XNextEvent(dpy, &ev)) {
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if (ev.type == KeyPress) {
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XLookupString(&ev.xkey, buf, sizeof(buf), &keysym, 0);
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if (lastkeysym == keysym) {
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lastkeyn++;
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} else {
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lastkeysym = keysym;
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lastkeyn = 1;
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}
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if (lastkeyn < 3)
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continue;
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lastkeyn = 0;
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lastkeysym = NULL;
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switch (keysym) {
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case XF86XK_AudioRaiseVolume:
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screenon = !screenon;
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updatescreen();
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break;
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case XF86XK_AudioLowerVolume:
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screenon = !screenon;
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updatescreen();
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break;
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case XF86XK_PowerOff:
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cleanupscreen();
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running = 0;
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break;
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}
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}
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}
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}
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int
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main(int argc, char **argv) {
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Display *dpy;
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Screen *screen;
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if (setuid(0))
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die("setuid(0) failed\n");
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if (!(dpy = XOpenDisplay(NULL)))
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die("Cannot open display\n");
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updatescreen();
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screen = XDefaultScreen(dpy);
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XSync(dpy, 0);
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lockscreen(dpy, screen);
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XSync(dpy, 0);
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readinputloop(dpy, screen);
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return 0;
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}
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