A few mouse issues in mouse-compatible applications

[magiblot]

Hi cosmos72,

I have made a list of issues I experienced while using mouse-compatible applications within twin:

• Scrolling up in applications which support mouse scrolling also scrolls up the terminal window, causing blinking in some cases.
• There is no animation when selecting text with mouse.
• Scrolling seems to trigger paste (or right/middle-click) events in text editors.

I recorded each of them on video:
https://drive.google.com/open?id=1TyOCcDS_4xAlU3yAgfsmrV9RQk9VO6lX
https://drive.google.com/open?id=1om5K_AJANkHPs5tNWaYTKN9gTKQwfuYR
https://drive.google.com/open?id=1RYnV1NWR2nyzuj_tibLJpGU79J-488gi

Of course these are not extremely important issues and twin is still usable with them. Only mouse-compatible applications seem to be affected by it.

Have a merry Xmas!

[cosmos72]

Thanks, I will examine these issues

[magiblot]

Scrolling seems to trigger paste (or right/middle-click) events in text editors.

After some more testing, it looks like these spurious events are mouse drag events. And wheel scrolling is not the only case where this happens. Holding a button clicked while clicking and releasing the other one has the same effect.

Both tty+GPM and gfx are affected by this. Using hw=tty on an xterm produces different results, though, as mouse wheel is not supported there and clicking buttons does not produce the error either.

Nevertheless, in all these environments, actual mouse dragging is not reported to the application being ran, even if it emits \x1B[?1002h.