Drag Problem

[oguzhaniptes]

Describe the bug
I encountered the issue of the GNOME desktop crashing when I held down the extension while dragging it anywhere.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Topbar'
2. Click on Extension'
3. Drag to 'Enywhere'
4. See error

Expected behavior
Open media control panel.

Environment:

• Distro: Arch Linux
• GNOME version 46
• Extension Version 2.0.1

[ChrisLauinger77]

I cannot drag the extension anywhere ...
Not sure how you manage that ...
Can you record it and post here ?

[oguzhaniptes]

I just clicked and dropped it somewhere.
It's very strange, I discovered it by mistake

VID_20240509_161904.online-video-cutter.com.mp4

[ChrisLauinger77]

The scrolling is enabled. I tried it without scrolling. Nothing happenend ...

[chase1k]

I have the same issue as oguzhaniptes. Any clicking and dragging causes it to crash.

[sakithb]

The crash logs point to this line,

media-controls/src/helpers/shell/PanelButton.ts

Line 870 in eeb83ab

const device = tapAction.get_device(tapAction.nTouchPoints - 1);

I don't have any idea what is going wrong here, but I will investigate later.

[ChrisLauinger77]

I do not see any crash logs here ?
But seems the device at index "tapAction.nTouchPoints - 1" is not there ?
I have still not even an idea how to reproduce this - OR it just does not happen on debian ...

[sakithb]

I do not see any crash logs here ? But seems the device at index "tapAction.nTouchPoints - 1" is not there ? I have still not even an idea how to reproduce this - OR it just does not happen on debian ...

I didn't post the logs here, but I was able to reproduce it on fedora.

[ChrisLauinger77]

I C.
Maybe trace out "tapAction.nTouchPoints" - I have the feeling it returns 0 under some cirumstances and then the -1 is not a good idea ...

[sakithb]

Seems like that isn't the issue. I tried by clamping the no of points to always be 0 or greater. Even after commenting out that code, it still crashes. My guess this is an error in the implementation of tap action itself.

[ramonsmits]

Same here on Fedora 40 and 41 and seems to be the same issue as:

• Gnome crashes when swiping on the widget #164

As that is pretty much what I do with the mouse. Left click and hold on the bar and then just move the mouse around and the whole shell crashed and presents the login screen.