On 05/09/2012 06:00 PM, Peter Hutterer wrote:
> Moving into a different soft button's area during drag-n-drop would trigger
> a click of that button.
>
> We only have the current button state and we mess with it, so the conditions
> for a possible clickpad soft-button event are:
> - hw->left is down now
> - none of left|right|middle were down before. since we change hw->left to
> hw->right/left we need to check all three
>
> If hw->left is down but one of the other buttons was already down, copy that
> button state and continue.
>
> http://bugzilla.redhat.com/819348
>
> Signed-off-by: Peter Hutterer
> ---
> Changes to v1:
> - check for all three buttons since we may have changed the hw-state for the
> right/middle button
> - if left is down and was already down, copy the previous hardware state to
> maintain the right button state
>
> src/synaptics.c | 25 +
> 1 file changed, 17 insertions(+), 8 deletions(-)
>
> diff --git a/src/synaptics.c b/src/synaptics.c
> index 4f2bf78..6b95850 100644
> --- a/src/synaptics.c
> +++ b/src/synaptics.c
> @@ -2538,14 +2538,23 @@ update_hw_button_state(const InputInfoPtr pInfo,
> struct SynapticsHwState *hw,
>
> /* If this is a clickpad and the user clicks in a soft button area, press
> * the soft button instead. */
> -if (para->clickpad && hw->left && !hw->right && !hw->middle) {
> -if (is_inside_rightbutton_area(para, hw->x, hw->y)) {
> -hw->left = 0;
> -hw->right = 1;
> -}
> -else if (is_inside_middlebutton_area(para, hw->x, hw->y)) {
> -hw->left = 0;
> -hw->middle = 1;
> +if (para->clickpad) {
> +/* hw->left is down, but no other buttons were already down */
> +if (!old->left && !old->right && !old->middle &&
> +hw->left && !hw->right && !hw->middle) {
> +if (is_inside_rightbutton_area(para, hw->x, hw->y)) {
> +hw->left = 0;
> +hw->right = 1;
> +}
> +else if (is_inside_middlebutton_area(para, hw->x, hw->y)) {
> +hw->left = 0;
> +hw->middle = 1;
> +}
> +}
> +else if (hw->left) {
> +hw->left = old->left;
> +hw->right = old->right;
> +hw->middle = old->middle;
> }
> }
>
This looks right to me now.
Reviewed-by: Chase Douglas
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