Bug 91818

Summary: Right-click generated by tap-and-hold
Product: Wayland Reporter: Peter Hutterer <peter.hutterer>
Component: libinputAssignee: Wayland bug list <wayland-bugs>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: medium CC: peter.hutterer
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Peter Hutterer 2015-08-31 00:08:49 UTC 
From https://bugzilla.redhat.com/show_bug.cgi?id=1256045

Finger order:
first finger down
second finger down
first finger up
second finger held down

This generates a right-click tap event. In the original bug report the main issue is that this interferes with scroll events. Even without that, a tap with a finger held down should generate a left-click event, not a right click event.

Possible solution is adding another timeout state to the current transition from TAP_2 so that the right button event is only generated when the second finger is also released within the timeout. Otherwise, we can move to the multitap states or swallow the button event altogether.

Notably, this also requires us to keep track of which finger was released, since putting first finger down, tapping with the second finger and then keeping the first finger down is a definitive tap.
Comment 1 Peter Hutterer 2015-09-07 00:48:02 UTC 
commit 79570fd492691b4ce97360e7775965e5765a702b
Author: Peter Hutterer <peter.hutterer@who-t.net>
Date:   Mon Aug 31 11:10:58 2015 +1000

    touchpad: don't tap for 2fg down, followed by a single finger up

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