Don't call onDrag when multiple fingers are touching the map #972
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Calling onDrag when multiple fingers are touching the map causes a delay when you start pinch zooming. This is because the pinch is interpreted as a tap in the beginning, which causes stopPropagation to be called. I think dragging is an action you only do with one finger, so therefore I think not calling onDrag is the correct solution to this. Fixes mapbox#962
aptroost
approved these changes
Apr 2, 2020
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I've used this approach in my own fork to avoid wrecking a shape that's in direct_select mode while pinch-zooming on a mobile device. I'm finding editing on mobile to be pretty impossible without that change. |
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Calling onDrag when multiple fingers are touching the map causes a delay
when you start pinch zooming. This is because the pinch is interpreted
as a tap in the beginning, which causes stopPropagation to be called.
I think dragging is an action you only do with one finger, so therefore
I think not calling onDrag is the correct solution to this.
I'm not sure how to test this, as I haven't figured out how to check if events are called. Are there any existing tests doing such checks?
Fixes #962