copyable line numbers

[0xC4N1]

Improves shareability of direct links to line numbers in file view.
Just right click the line number and copy link location.

[silverwind]

Is it really necessary? When a line number is clicked, the URL hash updates and it also works nicely with shift-click on a second line for a multi-line selection. The link added here could interfere with that functionality.

[0xC4N1]

Oh thank you for pointing this out. I didn't know about the multi select feature with shift-click for line numbers. You're right. Default behavior for anchors is open in new window. That behavior should be prevented first. I'm not sure right now where would be the best place to add JavaScript to implement it. I am testing this feature currently by using a custom template in CUSTOM_PATH.

I think just updating the URL isn't really convenient. Especially since browser developers start to hide the URLs and just show part of the domain until you select the address bar. On mobile devices this is the default behavior already.

[stale]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs during the next 2 months. Thank you for your contributions.

[wxiaoguang]

Thank you for contribution. Since we have:

• Add option to copy line permalink #17145

I think this PR can be closed.