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input: virtio: don't send mouse wheel event twice

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On Linux, a mouse event is generated for both down and up when mouse
wheel is used. This caused virtio_input_send() to be called twice each
time the wheel was used.

This commit adds a check for the button down state and only calls
virtio_input_send() when it is true.

Signed-off-by: Miika S <miika9764@gmail.com>
Message-Id: <20171222152531.1849-4-miika9764@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Miika S 2017-12-22 17:25:31 +02:00 committed by Gerd Hoffmann
parent 2416760fa6
commit a5f99be41e
1 changed files with 4 additions and 2 deletions
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6
hw/input/virtio-input-hid.c
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@ -218,8 +218,10 @@ static void virtio_input_handle_event(DeviceState *dev, QemuConsole *src,
break;
case INPUT_EVENT_KIND_BTN:
btn = evt->u.btn.data;
if (vhid->wheel_axis && (btn->button == INPUT_BUTTON_WHEEL_UP ||
btn->button == INPUT_BUTTON_WHEEL_DOWN)) {
if (vhid->wheel_axis &&
(btn->button == INPUT_BUTTON_WHEEL_UP ||
btn->button == INPUT_BUTTON_WHEEL_DOWN) &&
btn->down) {
event.type = cpu_to_le16(EV_REL);
event.code = cpu_to_le16(REL_WHEEL);
event.value = cpu_to_le32(btn->button == INPUT_BUTTON_WHEEL_UP