Middle Mouse Button Handling

[WerySkok]

Hello, I would like to request a separate interface for the handling of the middle mouse button behavior. Specifically, I would like to propose the following options:

1. Paste from Selection Clipboard: This option would mimic the traditional behavior from X, where clicking the MMB in an application would paste the content from the selection clipboard into that application. Thanks to Wayland transition, this option is now isn't the only possible one.

2. Autoscrolling: This option would enable autoscrolling, like in Windows. Clicking the MMB in a scrollable area would activate autoscrolling, allowing users to smoothly scroll through content without manually dragging the scrollbar.

3. None: This option would disable any specific middle mouse button behavior in xdg-desktop-portals, allowing applications to define their own custom functionality if desired.

[WerySkok]

I also think that enabling both Paste&Scroll should not be possible because that may lead to many undesired Paste actions in case if user just wanted to scroll through the content

[Mikenux]

What do you mean? That pasting and autoscrolling shouldn't happen at the same time when the MMB is pressed, or that pasting should be disabled when scrolling? I'm asking this because I don't know if it's possible to assign two shortcuts to the MMB.

[Play-InTheWay]

It probably means that pasting and autoscrolling shouldn't happen at the same time when the MMB is pressed. Something like that unfortunately can happen on Webcord and it's pretty undesirable.

[Mikenux]

Paste should be certainly disabled in both cases.

[Mikenux]

Is Autoscrolling implemented system-wide in a desktop environment?

[Play-InTheWay]

I don't think so, but it could be implemented from the toolkit or application side (as it kind of currently is).

I'm thinking that it may fit well in the Settings portal, though it wouldn't be an appearance setting.