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touchpad: revert the clickpad detection mechanism

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Use the previous heuristics to detect clickpads where a touchpad was
handled as a clickpad when:

 - The property INPUT_PROP_BUTTONPAD is set
 - The property INPUT_PROP_BUTTONPAD is NOT set but the touchpad only
   has BTN_LEFT

Revert a37d6dcc9c:
"touchpad: if we have a right button, let's assume it's not a clickpad"
MR:  https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/614
BUG: https://gitlab.freedesktop.org/libinput/libinput/-/issues/595

Fix #704

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
This commit is contained in:
José Expósito 2021-12-02 12:52:56 +01:00
parent 0bd1560750
commit fbe5d35dca
2 changed files with 14 additions and 32 deletions
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22
src/evdev-mt-touchpad-buttons.c
View file

@ -923,6 +923,7 @@ tp_guess_clickpad(const struct tp_dispatch *tp, struct evdev_device *device)
{
bool is_clickpad;
bool has_left = libevdev_has_event_code(device->evdev, EV_KEY, BTN_LEFT),
has_middle = libevdev_has_event_code(device->evdev, EV_KEY, BTN_MIDDLE),
has_right = libevdev_has_event_code(device->evdev, EV_KEY, BTN_RIGHT);
is_clickpad = libevdev_has_property(device->evdev, INPUT_PROP_BUTTONPAD);
@ -934,19 +935,24 @@ tp_guess_clickpad(const struct tp_dispatch *tp, struct evdev_device *device)
* single physical button
* - Wacom touch devices have neither left nor right buttons
*/
if (is_clickpad) {
if (has_right) {
evdev_log_bug_kernel(device,
"clickpad with right button, assuming it is not a clickpad\n");
is_clickpad = false;
}
} else if (has_left && !has_right &&
(tp->device->model_flags & EVDEV_MODEL_APPLE_TOUCHPAD_ONEBUTTON) == 0) {
if (!is_clickpad && has_left && !has_right &&
(tp->device->model_flags & EVDEV_MODEL_APPLE_TOUCHPAD_ONEBUTTON) == 0) {
evdev_log_bug_kernel(device,
"missing right button, assuming it is a clickpad.\n");
is_clickpad = true;
}
if (has_middle || has_right) {
if (is_clickpad)
evdev_log_bug_kernel(device,
"clickpad advertising right button\n");
} else if (has_left &
!is_clickpad &&
libevdev_get_id_vendor(device->evdev) != VENDOR_ID_APPLE) {
evdev_log_bug_kernel(device,
"non clickpad without right button?\n");
}
return is_clickpad;
}

24
test/test-touchpad-buttons.c
View file

@ -2098,29 +2098,6 @@ START_TEST(touchpad_non_clickpad_detection)
}
END_TEST
START_TEST(touchpad_clickpad_detection)
{
struct litest_device *dev;
uint32_t methods;
int codes[] = {
INPUT_PROP_MAX, INPUT_PROP_BUTTONPAD,
-1, -1,
};
/* Create a device with LR buttons and INPUT_PROP_BUTTONPAD set - we
* should ignore the property and assume it's a non-clickpad.
* Only way to check that is to verify no click methods are set.
*/
dev = litest_create_device_with_overrides(LITEST_SYNAPTICS_TOUCHPAD,
"litest Fake Clickpad",
NULL, NULL, codes);
methods = libinput_device_config_click_get_methods(dev->libinput_device);
ck_assert(methods == 0);
litest_delete_device(dev);
}
END_TEST
TEST_COLLECTION(touchpad_buttons)
{
struct range finger_count = {1, 4};
@ -2191,6 +2168,5 @@ TEST_COLLECTION(touchpad_buttons)
litest_add(clickpad_middleemulation_click_enable_while_down, LITEST_CLICKPAD, LITEST_ANY);
litest_add(clickpad_middleemulation_click_disable_while_down, LITEST_CLICKPAD, LITEST_ANY);
litest_add_no_device(touchpad_clickpad_detection);
litest_add_no_device(touchpad_non_clickpad_detection);
}