Touch controls do not work on Windows devices

[JaspervanRiet]

Version

4.6.0

Steps to reproduce

Have a chart (in our case a line chart) with an inside datazoom. Pinch to zoom will now work on mobile devices, but not on e.g. laptops with touchscreens.

What is expected?

Windows devices with touchscreens are expected to work just like mobile devices.

What is actually happening?

Touch events are being intercepted by the browser. If this is explicitly disabled using e.g. touch-action in CSS, nothing happens.

---

We have a large touch screen we want to show our charts on. This uses Windows. This lacking functionality means we cannot do that.

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[echarts-bot[bot]]

@JaspervanRiet Please provide a demo for the issue either with https://jsfiddle.net/ovilia/n6xc4df3/ or https://gallery.echartsjs.com/editor.html.

[JaspervanRiet]

I find it sort of weird to ask for a demo for this, since it's the case for all of ECharts. Nonetheless:

Take any example for ECharts, e.g. this official one: https://echarts.apache.org/examples/en/editor.html?c=area-simple

This will support touch controls on phones. On Windows devices, it will behave like this: https://streamable.com/n0vqc

[Ovilia]

This is probably a bug fixed in 4.6.0. Have you tried 4.6.0?

[JaspervanRiet]

This is probably a bug fixed in 4.6.0. Have you tried 4.6.0?

As the original post says, this is on 4.6.0.

[Ovilia]

@JaspervanRiet What windows device are you using?

[JaspervanRiet]

This was a ThinkPad 480s but we've tested this on a good number of Windows devices

[komorebi-san]

I have tried the same for

Ubuntu 18.04 Echarts version 4.6. Chrome Version 84.0.4147.89

I face the same issue as well.

Here is a simple gif demonstrating it.

@JaspervanRiet How did you solve the issue?

[JaspervanRiet]

@komorebi-san We have not solved the issue, we are still waiting.

[carl-221b]

I am having this same issue, has there been a solution yet ?

[carl-221b]

This seems to work i don't know if there are any major downsides to doing this though

[elnipa]

Experiencing the same problem. Any update on this here?

[taylorfullstack]

I have the same issue, touch events are not working on my Windows Samsung Notebook 9 pro touch screen unless I do import zRenderEnv from 'zrender/lib/core/env'; zRenderEnv.touchEventsSupported = true;