Re: [pointerevents] Imperative API to request suppression of panning and zooming

Note that this API would obviously be required to work beyond long after the associated `PointerEvent` had been dispatched.  I imagine developers would save the "current pointer" from a `pointerdown` listener, and invoke `tryDisableTouchActions` on it in a timer callback.  One downside to this is that it could lead to developers keeping `PointerEvent` instances alive longer than necessary (eg. not clearing on `pointerup`), which could in turn keep an otherwise removed section of the DOM alive in RAM (due to the reference from ``).

It's tempting to design a more stateless API (more like `Element.setPointerCapture` which takes a `pointerId`) but that would have the downside of being racey in scenarios where a user quickly flicks multiple times on different elements.  Really I think we'd want an API that is somehow tightly coupled to a specific active pointer sequence, not just a `pointerId`.

@staktrace @smaug---- @patrickkettner @patrickhlauke @dtapuska @NavidZ @mustaqahmed thoughts?

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Received on Friday, 8 September 2017 14:14:04 UTC