The qr code video is flipped for back camera

[account1009]

The qr code video is flipped horizontally to have a correct behaviour for front cameras

The problem is that when selecting a back camera (instead of a front camera) the horizontal flip has not to be performed

[account1009]

Proposed solution (pseudocode) :

Remove
transform: scale(-1, 1);
from styles.module.scss
.qrReaderVideo {

Dynamically add transform: scale(-1, 1) only when MediaTrackSettings facingMode is "user" and not "environment"

[WofWca]

Note that we don't focus on supporting mobile devices in deltachat-desktop.
But the solution sounds simple.

Also note that this issue does not affect whether the QR code actually gets scanned. It does either way, regardless of the value of the transform property.

[account1009]

okok good @WofWca . Convertible laptops such as Surface Pro have the back camera so the issue is not exclusively for mobile devices.

Apart that 99.99% of deltachat is already working great on linux with near 0 cost. I mean: if the interface supports desktop tile managers automatically is good for phone small screen, if the interface supports touch screen laptops automatically is fine on linux phones, if the app supports back camera of the Surface laptop automatically is working fine on a linux phone

Anyway for these submitted bugs that are less severe on laptop usage I'll try to provide a patch or pull request :)