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Look also for buttons when checking if input device is mouse

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* Some touchscreens have REL_* events

Signed-off-by: Vojtech Bocek <vbocek@gmail.com>

Change-Id: I332637ff58324895896ad09bf4ac08a2f127e49f
This commit is contained in:
Vojtech Bocek
2014-02-20 21:43:28 +01:00
parent b2a36d35c9
commit 971d318d34
1 changed files with 12 additions and 3 deletions
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minuitwrp/events.c
+12 -3
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@@ -250,6 +250,9 @@ static int vk_init(struct ev *e)
#define OFF(x) ((x)%BITS_PER_LONG)
#define LONG(x) ((x)/BITS_PER_LONG)
#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
// Check for EV_REL (REL_X and REL_Y) and, because touchscreens can have those too,
// check also for EV_KEY (BTN_LEFT and BTN_RIGHT)
static void check_mouse(int fd)
{
if(has_mouse)
@@ -259,12 +262,18 @@ static void check_mouse(int fd)
memset(bit, 0, sizeof(bit));
ioctl(fd, EVIOCGBIT(0, EV_MAX), bit[0]);
if(!test_bit(EV_REL, bit[0]))
if(!test_bit(EV_REL, bit[0]) || !test_bit(EV_KEY, bit[0]))
return;
ioctl(fd, EVIOCGBIT(EV_REL, KEY_MAX), bit[EV_REL]);
if(test_bit(REL_X, bit[EV_REL]) && test_bit(REL_Y, bit[EV_REL]))
has_mouse = 1;
if(!test_bit(REL_X, bit[EV_REL]) || !test_bit(REL_Y, bit[EV_REL]))
return;
ioctl(fd, EVIOCGBIT(EV_KEY, KEY_MAX), bit[EV_KEY]);
if(!test_bit(BTN_LEFT, bit[EV_KEY]) || !test_bit(BTN_RIGHT, bit[EV_KEY]))
return;
has_mouse = 1;
}
int ev_has_mouse(void)