Rather than using face-remap for efficient dimming and restoring colors in the
focused area, just dim /visible/ text in the unfocused region. The main
argument for this approach is that there are many corner cases in restoring the
colors correctly, and inaccuracies in the coloring is less crucial in the
unfocused area.
Previously, a value for focus-mode-to-thing like:
'((prog-mode . defun)
(text-mode . sentence)
(org-mode . paragraph))
Wouldn't work, since org-mode is dervied from text-mode. Now
focus-get-thing checks if the current mode is explicitly in
focus-mode-to-thing before checking if it's a derived mode.
The source of the error was not keeping track of which buffer focus should
operate on.
Also ensured that all hooks are local, which might also effect #13.
In `focus-read-only-mode` the `cursor-type` was unconditionally set to `t`, and
did not restore the users customized cursor type. This is fixed by storing the
original value of `cursor-type` in `focus-cursor-type`.
Addresses #11. Focus mode will no longer make any variables
`permanent-local'. On major mode change `focus-terminate' is run so that
the overlays are removed.
The `post-command-hook` was made `permanent-local` in order to keep
focus mode enabled when changing major mode. Other modes relies on the
`post-command-hook` to be cleared on major mode change, causing
problems. This fix rather uses the `permanent-local-hook` to tag
functions that should not be removed from hooks.
This fixes abo-abo/swiper#755. It might fix bugs I have not been able to
reproduce, namely #10, #8 and a followup in #7.
The `focus-mode-to-thing` variable dictates what thing to use according
to the currently enabled mode. Changing this if you only wished to
change the thing for a single session seems tedious. Now this can be
achieved by `M-x focus-change-thing`.
