I noticed that, when Acme runs on MacOS X, I can simulate 2-1 chord as follows:
Press and hold Option key on the keyboard.
(while holding down Option) press mouse button 1.
Release Option.
Release mouse button 1.
However, under X, the analogous chord with Control didn't work for me. I believe the reason is that Button1 never gets "pressed" when the sequence of events I described above is processed by code in x11-screen.c. I arrived at that conclusion by "walking through" the code as it processes events in my head.
This PR contains one possible way to remedy the situation. The drawback is that, if someone were to do Ctrl-Button2, they'd get a spurious 2-1 chord, but I think that may be acceptable.
I noticed that, when Acme runs on MacOS X, I can simulate 2-1 chord as follows:
However, under X, the analogous chord with Control didn't work for me. I believe the reason is that Button1 never gets "pressed" when the sequence of events I described above is processed by code in x11-screen.c. I arrived at that conclusion by "walking through" the code as it processes events in my head.
This PR contains one possible way to remedy the situation. The drawback is that, if someone were to do Ctrl-Button2, they'd get a spurious 2-1 chord, but I think that may be acceptable.