On 12/01/2016 05:39, Daniel van Vugt wrote: > dandrader: > It's been a useful quirk of Android input until now that multi-touch gestures > get separate events for each finger, but I think we all need to ensure our > client code does not assume that's always true. > > It wasn't a design choice of Mir's, but just something we inherited from > Android. There's a good argument that Mir's semantics should not change, > because it annoys people obviously. On the other hand it would be > difficult to keep all the quirks of Android input in the transition to > libinput. And I think the semantics of receiving a single event where > two fingers go down at once is perfectly valid. We should all be writing > client code that expects that might happen. >
If you read my message carefully you will see that Mir is not even doing that (two fingers down on the same event). It was qtmir that was mending the event stream to do so. Mir was completely missing the down event for the first touch. So all of the blue you got a "touch 1 move + touch 2 down" (no touch 1 down beforehand). -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mir in Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1531517/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
