jab2870
/
lisgd
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Rework logic to support diagnol gestures, rotation, and timeouts

Browse Source
master
Miles Alan 5 years ago
parent 877beea273
commit b4dd89ae3a
3 changed files with 180 additions and 121 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 4
      README.md
  2. 49
      config.def.h
  3. 242
      lisgd.c

4
README.md
Unescape View File

@ -44,7 +44,3 @@ Full commandline-based configuration example:
```
lisgd -d /dev/input/input1 -g "1,l,r,notify-send swiped lr" -t 200 -v
```
### TODO
- Diagnol swipe gestures
- Gestures recognition based on screenspace executed in

49
config.def.h
Unescape View File

@ -1,27 +1,32 @@
/* Minimum cutoff for a gestures to take effect */
unsigned int threshold = 300;
/*
distancethreshold: Minimum cutoff for a gestures to take effect
degreesleniency: Offset degrees within which gesture is recognized (max=45)
timeoutms: Maximum duration for a gesture to take place in miliseconds
orientation: Number of 90 degree turns to shift gestures by
verbose: 1=enabled, 0=disabled; helpful for debugging
device: Path to the /dev/ filesystem device events should be read from
gestures: Array of gestures; binds num of fingers / gesturetypes to commands
Supported gestures: SwipeLR, SwipeRL, SwipeDU, SwipeUD,
SwipeDLUR, SwipeURDL, SwipeDRUL, SwipeULDR
*/
/* Verbose mode, 1 = enabled, 0 = disabled */
int verbose = 0;
/* Device libinput should read from */
unsigned int distancethreshold = 300;
unsigned int degreesleniency = 15;
unsigned int timeoutms = 800;
unsigned int orientation = 0;
unsigned int verbose = 0;
char *device = "/dev/input/event1";
/* Commands to execute upon recieving a swipe gesture */
Gesture gestures[] = {
/* fingers start end command */
{ 1, Left, Right, "xdotool key --clearmodifiers Alt+Shift+e" },
{ 1, Right, Left, "xdotool key --clearmodifiers Alt+Shift+r" },
{ 2, Left, Right, "xdotool key --clearmodifiers Alt+e" },
{ 2, Right, Left, "xdotool key --clearmodifiers Alt+r" },
{ 2, Down, Up, "pidof svkbd-sxmo || svkbd-sxmo &" },
{ 2, Up, Down, "pkill -9 svkbd-sxmo" },
{ 3, Down, Up, "sxmo_vol.sh up" },
{ 3, Up, Down, "sxmo_vol.sh down" },
{ 4, Down, Up, "sxmo_brightness.sh up" },
{ 4, Up, Down, "sxmo_brightness.sh down" },
/* nfingers gesturetype command */
{ 1, SwipeLR, "xdotool key --clearmodifiers Alt+Shift+e" },
{ 1, SwipeRL, "xdotool key --clearmodifiers Alt+Shift+r" },
{ 1, SwipeDLUR, "sxmo_vol.sh up" },
{ 1, SwipeURDL, "sxmo_vol.sh down" },
{ 1, SwipeDRUL, "sxmo_brightness.sh up" },
{ 1, SwipeULDR, "sxmo_brightness.sh down" },
{ 2, SwipeLR, "xdotool key --clearmodifiers Alt+e" },
{ 2, SwipeRL, "xdotool key --clearmodifiers Alt+r" },
{ 2, SwipeDU, "pidof svkbd-sxmo || svkbd-sxmo &" },
{ 2, SwipeUD, "pkill -9 svkbd-sxmo" },
};

242
lisgd.c
Unescape View File

@ -8,19 +8,29 @@
#include <string.h>
#include <sys/prctl.h>
#include <sys/select.h>
#include <time.h>
#include <unistd.h>
/* Defines */
#define MAXSLOTS 20
#define INVALID -999999
#define NOMOTION -999999
/* Types */
enum { Left, Right, Down, Up };
typedef int direction;
enum {
SwipeDU,
SwipeUD,
SwipeLR,
SwipeRL,
SwipeDLUR,
SwipeDRUL,
SwipeURDL,
SwipeULDR
};
typedef int Swipe;
typedef struct {
int nfingers;
direction start;
direction end;
int nfswipe;
Swipe swipe;
char *command;
} Gesture;
@ -30,9 +40,10 @@ typedef struct {
/* Globals */
Gesture *gestsarr;
int gestsarrlen;
direction pendingstart, pendingend;
Swipe pendingswipe;
double xstart[MAXSLOTS], xend[MAXSLOTS], ystart[MAXSLOTS], yend[MAXSLOTS];
unsigned fingsdown = 0, fingspending = 0;
unsigned nfdown = 0, nfpendingswipe = 0;
struct timespec timedown;
void
die(char * msg)
@ -47,6 +58,57 @@ execcommand(char *c)
system(c);
}
int
gesturecalculateswipewithindegrees(double gestdegrees, double wantdegrees) {
return (
gestdegrees >= wantdegrees - degreesleniency &&
gestdegrees <= wantdegrees + degreesleniency
);
}
Swipe
gesturecalculateswipe(double x0, double y0, double x1, double y1) {
double t, degrees, dist;
t = atan2(x1 - x0, y0 - y1);
degrees = 57.2957795130823209 * (t < 0 ? t + 6.2831853071795865 : t);
dist = sqrt(pow(x1 - x0, 2) + pow(y1 - y0, 2));
if (verbose)
fprintf(stderr, "Swipe distance=[%.2f]; degrees=[%.2f]\n", dist, degrees);
if (dist < distancethreshold) return -1;
else if (gesturecalculateswipewithindegrees(degrees, 0)) return SwipeDU;
else if (gesturecalculateswipewithindegrees(degrees, 45)) return SwipeDLUR;
else if (gesturecalculateswipewithindegrees(degrees, 90)) return SwipeLR;
else if (gesturecalculateswipewithindegrees(degrees, 135)) return SwipeULDR;
else if (gesturecalculateswipewithindegrees(degrees, 180)) return SwipeUD;
else if (gesturecalculateswipewithindegrees(degrees, 225)) return SwipeURDL;
else if (gesturecalculateswipewithindegrees(degrees, 270)) return SwipeRL;
else if (gesturecalculateswipewithindegrees(degrees, 315)) return SwipeDRUL;
else if (gesturecalculateswipewithindegrees(degrees, 360)) return SwipeDU;
return -1;
}
void
gestureexecute(Swipe swipe, int nfingers) {
int i;
for (i = 0; i < gestsarrlen; i++) {
if (verbose) {
fprintf(stderr,
"[Nfswipe/SwipeId]: Cfg (%d/%d) <=> Evt (%d/%d)\n",
gestsarr[i].nfswipe, gestsarr[i].swipe, nfingers, swipe
);
}
if (gestsarr[i].nfswipe == nfingers && gestsarr[i].swipe == swipe) {
if (verbose) fprintf(stderr, "Execute %s\n", gestsarr[i].command);
execcommand(gestsarr[i].command);
}
}
}
static int
libinputopenrestricted(const char *path, int flags, void *user_data)
{
@ -60,6 +122,25 @@ libinputcloserestricted(int fd, void *user_data)
close(fd);
}
Swipe
swipereorient(Swipe swipe, int orientation) {
while (orientation > 0) {
switch(swipe) {
// 90deg per turn so: L->U, R->D, U->R, D->L
case SwipeDU: swipe = SwipeLR; break;
case SwipeDLUR: swipe = SwipeULDR; break;
case SwipeLR: swipe = SwipeUD; break;
case SwipeULDR: swipe = SwipeURDL; break;
case SwipeUD: swipe = SwipeRL; break;
case SwipeURDL: swipe = SwipeDRUL; break;
case SwipeRL: swipe = SwipeDU; break;
case SwipeDRUL: swipe = SwipeDLUR; break;
}
orientation--;
}
return swipe;
}
void
touchdown(struct libinput_event *e)
{
@ -68,10 +149,10 @@ touchdown(struct libinput_event *e)
tevent = libinput_event_get_touch_event(e);
slot = libinput_event_touch_get_slot(tevent);
xstart[slot] = libinput_event_touch_get_x(tevent);
ystart[slot] = libinput_event_touch_get_y(tevent);
fingsdown++;
if (nfdown == 0) clock_gettime(CLOCK_MONOTONIC_RAW, &timedown);
nfdown++;
}
void
@ -79,6 +160,7 @@ touchmotion(struct libinput_event *e)
{
struct libinput_event_touch *tevent;
int slot;
double x, y;
tevent = libinput_event_get_touch_event(e);
slot = libinput_event_touch_get_slot(tevent);
@ -86,83 +168,48 @@ touchmotion(struct libinput_event *e)
yend[slot] = libinput_event_touch_get_y(tevent);
}
void
resetslot(int slot) {
xend[slot] = NOMOTION;
yend[slot] = NOMOTION;
xstart[slot] = NOMOTION;
ystart[slot] = NOMOTION;
}
void
touchup(struct libinput_event *e)
{
struct libinput_event_touch *tevent;
direction start;
direction end;
int i;
int slot;
struct libinput_event_touch *tevent;
struct timespec now;
tevent = libinput_event_get_touch_event(e);
slot = libinput_event_touch_get_slot(tevent);
nfdown--;
clock_gettime(CLOCK_MONOTONIC_RAW, &now);
fingsdown--;
if (xend[slot] == INVALID || xstart[slot] == INVALID) return;
// E.g. invalid motion, it didn't begin/end from anywhere
if (
xstart[slot] == NOMOTION || ystart[slot] == NOMOTION ||
xend[slot] == NOMOTION || yend[slot] == NOMOTION
) return;
if (verbose) {
fprintf(
stderr,
"(%d down fingers) (%d pending fingers) [start: x %lf y %lf] to [end x %lf y %lf]\n",
fingsdown, fingspending, xstart[slot], ystart[slot], xend[slot], yend[slot]
Swipe swipe = gesturecalculateswipe(
xstart[slot], ystart[slot], xend[slot], yend[slot]
);
}
if (xend[slot] > xstart[slot] && fabs(xend[slot] - xstart[slot]) > threshold) {
start = Left;
end = Right;
} else if (xend[slot] < xstart[slot] && fabs(xend[slot] - xstart[slot]) > threshold) {
start = Right;
end = Left;
} else if (yend[slot] > ystart[slot] && fabs(yend[slot] - ystart[slot]) > threshold) {
start = Up;
end = Down;
} else if (yend[slot] < ystart[slot] && fabs(yend[slot] - ystart[slot]) > threshold) {
start = Down;
end = Up;
} else {
if (verbose) {
fprintf(stderr, "Input didn't match a known gesture\n");
}
start = INVALID;
end = INVALID;
}
if (nfpendingswipe == 0) pendingswipe = swipe;
if (pendingswipe == swipe) nfpendingswipe++;
resetslot(slot);
if (fingspending == 0) {
pendingstart = start;
pendingend = end;
}
if (pendingstart == start && pendingend == end) {
fingspending++;
}
xend[slot] = INVALID;
yend[slot] = INVALID;
xstart[slot] = INVALID;
ystart[slot] = INVALID;
if (fingsdown == 0) {
for (i = 0; i < gestsarrlen; i++) {
if (verbose) {
fprintf(stderr,
"[Fingers/Start/End]: Cfg (%d/%d/%d) <=> Evt (%d/%d/%d)\n",
gestsarr[i].nfingers, gestsarr[i].start, gestsarr[i].end,
fingspending, pendingstart, pendingend
);
}
// All fingers up - check if within milisecond limit, exec, & reset
if (nfdown == 0) {
if (
gestsarr[i].nfingers == fingspending &&
gestsarr[i].start == pendingstart &&
gestsarr[i].end == pendingend
) {
if (verbose) {
fprintf(stderr, "Execute %s\n", gestsarr[i].command);
}
execcommand(gestsarr[i].command);
}
}
fingspending = 0;
timeoutms >
((now.tv_sec - timedown.tv_sec) * 1000000 + (now.tv_nsec - timedown.tv_nsec) / 1000) / 1000
) gestureexecute(swipe, nfpendingswipe);
nfpendingswipe = 0;
}
}
@ -194,10 +241,10 @@ run()
// E.g. initially invalidate every slot
for (i = 0; i < MAXSLOTS; i++) {
xend[i] = INVALID;
yend[i] = INVALID;
xstart[i] = INVALID;
ystart[i] = INVALID;
xend[i] = NOMOTION;
yend[i] = NOMOTION;
xstart[i] = NOMOTION;
ystart[i] = NOMOTION;
}
FD_ZERO(&fdset);
@ -239,29 +286,36 @@ main(int argc, char *argv[])
} else if (!strcmp(argv[i], "-d")) {
device = argv[++i];
} else if (!strcmp(argv[i], "-t")) {
threshold = atoi(argv[++i]);
distancethreshold = atoi(argv[++i]);
} else if (!strcmp(argv[i], "-r")) {
degreesleniency = atoi(argv[++i]);
} else if (!strcmp(argv[i], "-m")) {
timeoutms = atoi(argv[++i]);
} else if (!strcmp(argv[i], "-o")) {
orientation = atoi(argv[++i]);
} else if (!strcmp(argv[i], "-g")) {
gestsarrlen++;
realloc(gestsarr, (gestsarrlen * sizeof(Gesture)));
gestpt = strtok(argv[++i], ",");
for (j = 0; gestpt != NULL && j < 4; gestpt = strtok(NULL, ","), j++) {
for (j = 0; gestpt != NULL && j < 3; gestpt = strtok(NULL, ","), j++) {
switch(j) {
case 0: gestsarr[gestsarrlen - 1].nfingers = atoi(gestpt); break;
case 0: gestsarr[gestsarrlen - 1].nfswipe = atoi(gestpt); break;
case 1:
if (!strcmp(gestpt, "l")) gestsarr[gestsarrlen-1].start = Left;
if (!strcmp(gestpt, "r")) gestsarr[gestsarrlen-1].start = Right;
if (!strcmp(gestpt, "d")) gestsarr[gestsarrlen-1].start = Down;
if (!strcmp(gestpt, "u")) gestsarr[gestsarrlen-1].start = Up;
break;
case 2:
if (!strcmp(gestpt, "l")) gestsarr[gestsarrlen-1].end = Left;
if (!strcmp(gestpt, "r")) gestsarr[gestsarrlen-1].end = Right;
if (!strcmp(gestpt, "d")) gestsarr[gestsarrlen-1].end = Down;
if (!strcmp(gestpt, "u")) gestsarr[gestsarrlen-1].end = Up;
if (!strcmp(gestpt, "LR")) gestsarr[gestsarrlen-1].swipe = SwipeLR;
if (!strcmp(gestpt, "RL")) gestsarr[gestsarrlen-1].swipe = SwipeRL;
if (!strcmp(gestpt, "DU")) gestsarr[gestsarrlen-1].swipe = SwipeDU;
if (!strcmp(gestpt, "UD")) gestsarr[gestsarrlen-1].swipe = SwipeUD;
if (!strcmp(gestpt, "DLUR")) gestsarr[gestsarrlen-1].swipe = SwipeDLUR;
if (!strcmp(gestpt, "URDL")) gestsarr[gestsarrlen-1].swipe = SwipeURDL;
if (!strcmp(gestpt, "ULDR")) gestsarr[gestsarrlen-1].swipe = SwipeULDR;
if (!strcmp(gestpt, "DRUL")) gestsarr[gestsarrlen-1].swipe = SwipeDRUL;
break;
case 3: gestsarr[gestsarrlen - 1].command = gestpt; break;
case 2: gestsarr[gestsarrlen - 1].command = gestpt; break;
}
}
} else {
fprintf(stderr, "lisgd [-v] [-d /dev/input/0] [-o 0] [-t 200] [-r 20] [-m 400] [-g '1,LR,notify-send swiped left to right']\n");
exit(1);
}
}
@ -272,6 +326,10 @@ main(int argc, char *argv[])
memcpy(gestsarr, gestures, sizeof(gestures));
}
// Modify gestures swipes based on orientation provided
for (i = 0; i < gestsarrlen; i++)
gestsarr[i].swipe = swipereorient(gestsarr[i].swipe, orientation);
run();
return 0;
}

Write Preview
Loading…
Cancel
Save