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Issue 810898 link

Starred by 1 user
Status: Fixed
Owner:
seobrien@chromium.org
Closed: Feb 2018
Cc:
adlr@chromium.org
sheckylin@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 3
Type: Bug



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Cursor jumps with touchpad clicked on eve

Project Member Reported by seobrien@chromium.org, Feb 9 2018 
What steps will reproduce the problem?
(1) Place finger at very bottom of touchpad and physically click
(2) Hold button
(3) Place other finger on top right of touchpad without moving

What is the expected result?
No cursor movement

What happens instead?
Cursor jumps up and to the right
Project Member

Comment 1 by bugdroid1@chromium.org, Feb 14 2018 

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform/gestures/+/40516451b92154384af698a70f90f23b19c76b88

commit 40516451b92154384af698a70f90f23b19c76b88
Author: Sean O'Brien <seobrien@google.com>
Date: Wed Feb 14 05:17:23 2018

Always filter 0 pressure fingers if filter enabled

Because hovering fingers are reported as fingers with 0 pressure, we
should always filter fingers which have 0 pressure, even if a button is
pressed.  This prevents big cursor jumps on eve when the button is
pressed and another finger lands

BUG= chromium:810898 
TEST=Add touchtest and check for regressions.  Test on eve device.

Change-Id: I7aa867339724fc89038b1b47ab4dfa9d04a3b4a2
Reviewed-on: https://chromium-review.googlesource.com/912434
Commit-Ready: Sean O'Brien <seobrien@chromium.org>
Tested-by: Sean O'Brien <seobrien@chromium.org>
Reviewed-by: Andrew de los Reyes <adlr@chromium.org>

[modify] https://crrev.com/40516451b92154384af698a70f90f23b19c76b88/src/scaling_filter_interpreter.cc

Comment 2 by seobrien@chromium.org, Feb 14 2018

Status: Fixed (was: Assigned)
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