On July 19, 2021 5:55:57 PM GMT+02:00, Juri Linkov <juri@linkov.net> wrote:
The idea is to define a variable (something like below;
poplife-menu-candidates) with list of functions that returns nil or
keymap (something like below; poplife-mouse-word-menu). A function
(something like below; poplife-context-menu) will test each of them
until it gets keymap.
Note: such a variable should have a name that ends in `-hook` or
`-functions` and should be manipulated with the usual hook functions,
e.g. `run-hook-wrapped`.
Note also that the `context-menu-function` already mentioned offers the
same kind of functionality (except you need to use `add-function`
instead of `add-hook` and it offers a bit more flexibility at the cost
of extra work).
For easier customization, 'context-menu-functions' could be more hook-like,
so e.g. when the default value will be defined as
(defcustom context-menu-functions '(context-menu-region)
then users could easily customize the default value.
More minor modes could add own functions to the global value, e.g.
(add-hook 'context-menu-functions 'bug-reference-context-menu -5)
(add-hook 'context-menu-functions 'goto-address-context-menu -10)
Major modes could modify buffer-local values:
(add-hook 'context-menu-functions 'dired-context-menu nil t)
(add-hook 'context-menu-functions 'info-context-menu -5 t)
(add-hook 'context-menu-functions 'dictionary-context-menu -10 t)
Then the user could have the final say by using another option, e.g.
(defcustom context-menu-filter nil
where a user-defined function (that can be extended using `add-function`)
will accept a menu constructed by context-menu-functions
and return the modified menu with reordered/removed/added items
to user's liking.