openstreetmap/iD

Two-finger swipe on trackpad zooms map instead of panning

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#8,649 opened on Aug 18, 2021

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 (8 comments) (2 reactions) (0 assignees)JavaScript (1,449 forks)github user discovery
accessibilitybug-browser-specifichelp wantedusability

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Description

Starting in v2.20.1, swiping with two fingers on a multitouch trackpad zooms the map in and out instead of panning in every direction. Reproduces in Firefox 91.0 on macOS. Does not reproduce in Safari 13.1.

/ref #8595

Contributor guide

Research direction
Investigate the trackpad gesture handling code, specifically the two finger swipe event, and trace how it interacts with map pan and zoom controls. Look for recent changes that may have altered event propagation.
Tech stack
javascript
Domain
frontend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaScriptDOM event handling
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65