santifer/warpchart

Touch support for panning the star chart

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#2 opened on Jun 10, 2026

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good first issue

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Description

area: star chart · good first issue The local-system window pans with horizontal wheel and zooms with ctrl+wheel. On touch devices neither exists. Add one-finger horizontal drag to pan and pinch to zoom on the SVG (pointer events, no library).

Contributor guide

Research direction
Study the pointer events API to implement one finger horizontal drag for panning and two finger pinch for zooming on the SVG chart. No JavaScript libraries should be used.
Tech stack
typescript
Domain
frontend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
TypeScriptSVGPointer Events
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
85