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touchpad: don't allow gestures with a clickpad button down by a finger

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Allowing gestures when holding a physical click enables tasks like
switching workspaces while dragging an icon, but this should only be
possible with a *thumb* holding down the clickpad, not fingers. This
commit restores the ability to hold down the clickpad with two or three
fingers to right- or middle-drag.

Fixes #339, #340

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Matt Mayfield 2019-08-14 08:29:07 -05:00 • committed by Peter Hutterer
parent ac007401bb
commit 73d55cc6c5
2 changed files with 101 additions and 2 deletions
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9
src/evdev-mt-touchpad-gestures.c
View file

@ -717,8 +717,13 @@ tp_gesture_post_events(struct tp_dispatch *tp, uint64_t time)
if (tp->gesture.finger_count == 0)
return;
/* When tap-and-dragging, force 1fg mode. */
if (tp_tap_dragging(tp)) {
/* When tap-and-dragging, force 1fg mode. On clickpads, if the
* physical button is down, don't allow gestures unless the button
* is held down by a *thumb*, specifically.
*/
if (tp_tap_dragging(tp) ||
(tp->buttons.is_clickpad && tp->buttons.state &&
tp->thumb.state == THUMB_STATE_FINGER)) {
tp_gesture_cancel(tp, time);
tp->gesture.finger_count = 1;
tp->gesture.finger_count_pending = 0;

94
test/test-touchpad-buttons.c
View file

@ -958,6 +958,96 @@ START_TEST(touchpad_clickfinger_appletouch_3fg)
}
END_TEST
START_TEST(touchpad_clickfinger_click_drag)
{
struct litest_device *dev = litest_current_device();
struct libinput *li = dev->libinput;
int nfingers = _i; /* ranged test */
unsigned int button;
int nslots = libevdev_get_num_slots(dev->evdev);
litest_enable_clickfinger(dev);
litest_drain_events(li);
litest_touch_down(dev, 0, 40, 50);
button = BTN_LEFT;
if (nfingers > 1) {
if (nslots > 1) {
litest_touch_down(dev, 1, 50, 50);
} else {
litest_event(dev, EV_KEY, BTN_TOOL_DOUBLETAP, 1);
}
button = BTN_RIGHT;
}
if (nfingers > 2) {
if (nslots > 2) {
litest_touch_down(dev, 2, 60, 50);
} else {
litest_event(dev, EV_KEY, BTN_TOOL_DOUBLETAP, 0);
litest_event(dev, EV_KEY, BTN_TOOL_TRIPLETAP, 1);
}
button = BTN_MIDDLE;
}
litest_button_click(dev, BTN_LEFT, true);
libinput_dispatch(li);
litest_assert_button_event(li, button,
LIBINPUT_BUTTON_STATE_PRESSED);
for (int i = 0; i < 20; i++) {
litest_push_event_frame(dev);
switch (nfingers) {
case 3:
if (nslots >= nfingers)
litest_touch_move(dev, 2, 60, 50 + i);
/* fallthrough */
case 2:
if (nslots >= nfingers)
litest_touch_move(dev, 1, 50, 50 + i);
/* fallthrough */
case 1:
litest_touch_move(dev, 0, 40, 50 + i);
break;
}
litest_pop_event_frame(dev);
libinput_dispatch(li);
}
litest_assert_only_typed_events(li, LIBINPUT_EVENT_POINTER_MOTION);
litest_button_click(dev, BTN_LEFT, false);
litest_assert_button_event(li, button,
LIBINPUT_BUTTON_STATE_RELEASED);
if (nfingers > 3) {
if (nslots > 3) {
litest_touch_up(dev, 2);
} else {
litest_event(dev, EV_KEY, BTN_TOOL_DOUBLETAP, 1);
litest_event(dev, EV_KEY, BTN_TOOL_TRIPLETAP, 0);
}
}
if (nfingers > 2) {
if (nslots > 2) {
litest_touch_up(dev, 1);
} else {
litest_event(dev, EV_KEY, BTN_TOOL_DOUBLETAP, 0);
}
button = BTN_MIDDLE;
}
litest_touch_up(dev, 0);
libinput_dispatch(li);
litest_assert_empty_queue(li);
}
END_TEST
START_TEST(touchpad_btn_left)
{
struct litest_device *dev = litest_current_device();
@ -2006,6 +2096,8 @@ END_TEST
TEST_COLLECTION(touchpad_buttons)
{
struct range finger_count = {1, 4};
litest_add("touchpad:button", touchpad_button, LITEST_TOUCHPAD, LITEST_CLICKPAD);
litest_add("touchpad:clickfinger", touchpad_1fg_clickfinger, LITEST_CLICKPAD, LITEST_ANY);
@ -2036,6 +2128,8 @@ TEST_COLLECTION(touchpad_buttons)
litest_add_for_device("touchpad:clickfinger", touchpad_clickfinger_appletouch_2fg, LITEST_APPLETOUCH);
litest_add_for_device("touchpad:clickfinger", touchpad_clickfinger_appletouch_3fg, LITEST_APPLETOUCH);
litest_add_ranged("touchpad:clickfinger", touchpad_clickfinger_click_drag, LITEST_CLICKPAD, LITEST_ANY, &finger_count);
litest_add("touchpad:click", touchpad_click_defaults_clickfinger, LITEST_APPLE_CLICKPAD, LITEST_ANY);
litest_add("touchpad:click", touchpad_click_defaults_btnarea, LITEST_CLICKPAD, LITEST_APPLE_CLICKPAD);
litest_add("touchpad:click", touchpad_click_defaults_none, LITEST_TOUCHPAD, LITEST_CLICKPAD);