Re: request: make-frame-visible hook

[Bo Lin]

Richard M Stallman <address@hidden> writes:
>
>      before-window-buffer-change-hook
>      after-window-buffer-change-hook
>      focus-window-hook
>      unfocus-window-hook
>      enter-buffer-hook
>      exit-buffer-hook
>
> What packages would want these, and what are they trying to do?

winner-mode (included in Emacs) uses a `post-command-hook' to save old
window configurations due to a lack of
`before-window-configuration-change-hook'. It tries to automatically
keep track of window configuration changes so the user can "go back" to
a previous window configuration without having to have manually "saved"
the old configuration beforehand. It is analogous to how web browsers
keep a history of pages visited in a browsing session. In order to do
that it needs to be notified when the window configuration is about to
change but before the change has actually occurred, so
`window-configuration-change-hook' is not sufficient.