Arch Linux

rochus

Member

Registered: 2007-02-14

Posts: 96

[SOLVED] Thunderbird (gtk?) item opacity during drag&drop

Hi all,

When dragging around mails in thunderbird, e.g. in case of moving mails to some other folder, then the visual "response" to this is to see the entire item that gets dragged floating under the mouse. For multiple items, you see all those items. So far, so normal. The issue is that the floating/dragged items have full opacity. That is, if you have multiple items that you wish to drag to some specific folder, you cannot see through the visual representation of the dragging, which makes moving to the destination rather difficult. One workaround is to start dragging at one of the corners of the drag area, e.g. the top-left corner of the topmost item. I guess you understand what I mean.

Hence, the question: Is there any way to set the opacity for the visualization during drag&drop? AFAIR, thunderbird uses GTK, and the mails are displayed in a list view. So maybe it's something I can tweak for all GTK applications at once?

This might be a rather silly and easy to solve issue, I just simply didn't find anything yet, regardless what I was searching for. Any help appreciated.

Best

Last edited by rochus (2021-04-12 14:22:27)

progandy

Member

Registered: 2012-05-17

Posts: 5,321

Re: [SOLVED] Thunderbird (gtk?) item opacity during drag&drop

If you are using an X11 window manager, you have to run a compositor like picom. Then the drag window will be smaller and transparent.

https://wiki.archlinux.org/index.php/Xorg#Composite

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rochus

Member

Registered: 2007-02-14

Posts: 96

Re: [SOLVED] Thunderbird (gtk?) item opacity during drag&drop

Thanks for your quick reply! I was afraid that this might depend on a compositor, but was unsure. Well, at least now I know what to tinker with soon.

progandy

Member

Registered: 2012-05-17

Posts: 5,321

Re: [SOLVED] Thunderbird (gtk?) item opacity during drag&drop

You can completely disable the drag preview with "nglayout.enable_drag_images" in about:config (Settings -> Edit Configuration or so)

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| alias CUTF='LANG=en_XX.UTF-8@POSIX ' | alias ENGLISH='LANG=C.UTF-8 ' |

rochus

Member

Registered: 2007-02-14

Posts: 96

Re: [SOLVED] Thunderbird (gtk?) item opacity during drag&drop

Awesome, that'll actually do it for me and avoids having to spend time with a compositor. Thanks once more, progandy!