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[Bug 1531517] Re: [regression] pinch to zoom not working reliably

 

Ah yes the android input transport is biting us again. We are still
bound to the limitation of that encoding. That encoding means - only one
down/up touch id per event. No matter what libinput reads or qtmir
sanitizes.. , as long as the transport from server to nested server or
from nested server to client chops of the information of every
additional down or up the gesture will break. I will keep the fix close
to the encoding so we can get rid of it easier...

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https://bugs.launchpad.net/bugs/1531517

Title:
  [regression] pinch to zoom not working reliably

Status in Canonical System Image:
  Confirmed
Status in Mir:
  Confirmed
Status in Mir 0.18 series:
  Confirmed
Status in mir package in Ubuntu:
  Confirmed
Status in qtmir package in Ubuntu:
  Won't Fix

Bug description:
  in the last few days (using rc-proposed 221 on krillin) pinch to zoom
  gestures do not work reliably anymore.

  Appears to be system wide as there have been reports in the follow
  apps that all use PinchArea from QML:

  - Camera: pinch to zoom in viewfinder stops working, pinch to zoom in Photo Roll to zoom a photo stops working
  - Gallery: open a photo and pinch to zoom doesn't work
  - Webbrowser: pinch to zoom on a web page not working

  Could be mir/qtmir related

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