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Emulating right click on touch screens with a long press

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This commit is contained in:
Tom 2020-04-18 07:34:52 -06:00
parent 6b8260c1e5
commit 5beb32d066
1 changed files with 11 additions and 3 deletions
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14
src/input/evdev.c
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@ -66,6 +66,7 @@ struct input_device {
char modifiers;
__s32 mouseDeltaX, mouseDeltaY, mouseScroll;
__s32 touchDownX, touchDownY, touchX, touchY;
struct timeval touchDownTime;
short controllerId;
int haptic_effect_id;
int buttonFlags;
@ -87,6 +88,7 @@ static const int hat_constants[3][3] = {{HAT_UP | HAT_LEFT, HAT_UP, HAT_UP | HAT
#define TOUCH_UP -1
#define TOUCH_CLICK_RADIUS 10
#define TOUCH_CLICK_DELAY 100000 // microseconds
#define TOUCH_RCLICK_TIME 750 // milliseconds
static struct input_device* devices = NULL;
static int numDevices = 0;
@ -266,14 +268,20 @@ static bool evdev_handle_event(struct input_event *ev, struct input_device *dev)
mouseCode = BUTTON_X2;
break;
case BTN_TOUCH:
if (ev->value != 1) {
if (ev->value == 1) {
dev->touchDownTime = ev->time;
} else {
if (dev->touchDownX != TOUCH_UP && dev->touchDownY != TOUCH_UP) {
int deltaX = dev->touchX - dev->touchDownX;
int deltaY = dev->touchY - dev->touchDownY;
if (deltaX * deltaX + deltaY * deltaY < TOUCH_CLICK_RADIUS * TOUCH_CLICK_RADIUS) {
LiSendMouseButtonEvent(BUTTON_ACTION_PRESS, BUTTON_LEFT);
struct timeval elapsedTime;
timersub(&ev->time, &dev->touchDownTime, &elapsedTime);
int holdTimeMs = elapsedTime.tv_sec * 1000 + elapsedTime.tv_usec / 1000;
int button = holdTimeMs >= TOUCH_RCLICK_TIME ? BUTTON_RIGHT : BUTTON_LEFT;
LiSendMouseButtonEvent(BUTTON_ACTION_PRESS, button);
usleep(TOUCH_CLICK_DELAY);
LiSendMouseButtonEvent(BUTTON_ACTION_RELEASE, BUTTON_LEFT);
LiSendMouseButtonEvent(BUTTON_ACTION_RELEASE, button);
}
}
dev->touchDownX = TOUCH_UP;