check selection's visible width when copying on mouse click #2711
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Mouse-click-up copies the selection produced by dragging. The event is ignored if the selection has a width of 1 though so you don't copy when clicking rather than dragging. The current check copies text when it has a visible width of 1 but is actually multiple characters in the rope like a CRLF line-ending. With this change we check the unicode width of the character(s) in the selection rather than the range length, so clicking on a CRLF line-ending does not copy.
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A small additional thing: Yanking doesn't require the selection to have changed; so you can select something in visual/normal mode, click outside the document (for example on the status line) and the selection is yanked. This is a bit of an edge-case, though, and I'm not sure if it's worth the effort to change the implementation to fix that. |
archseer
requested changes
Jun 21, 2022
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Mouse-click-up copies the selection produced by dragging. The event
is ignored if the selection has a width of 1 though so you don't
copy when clicking rather than dragging. The current check copies
text when it has a visible width of 1 but is actually multiple
characters in the rope like a CRLF line-ending. With this change
we check the unicode width of the character(s) in the selection
rather than the range length, so clicking on a CRLF line-ending
does not copy.
Closes #2699