1235551 - Use a similar pan/zoom behavior on Windows touch as on Android

Status: RESOLVED DUPLICATE of bug 789906

(Core :: Graphics, defect)

Description

[(Currently slow to respond) Philipp Sackl [:phlsa] (Firefox UX) please use needinfo]

Zooming on Windows using touch is currently pretty terrible because it behaves the same way as zooming with ctrl++/-. The same is true for trackpad zooming on Macs.

We do have great touch-zoom behavior on Android though. If that behavior is implemented in Gecko, can we also use it in our desktop browsers?

Comment 1

[Mark Finkle (:mfinkle) (use needinfo?)]

The pinch zooming on Android is currently supported via the Gecko-based APZC (async pan/zoom controller), which is also used on some Desktop platforms IIRC. Kats has done a lot of work in this area and might be able to give you a quick summary of whats possible.

Comment 2

[Kartikaya Gupta (email:[e-mail])]

Yeah, it shouldn't be too hard to hook it up for Windows at least. OS X will be a bit more difficult since it's a trackpad rather than a touchscreen, and we don't get raw touch events. But still it's something we can try to implement. We have a bug already on file for this, so I'm going to dupe this over.