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bug#20164: 25.0.50; Do not tell users that `x-show-tip' is internal
From: |
Drew Adams |
Subject: |
bug#20164: 25.0.50; Do not tell users that `x-show-tip' is internal |
Date: |
Sun, 22 Mar 2015 09:40:22 -0700 (PDT) |
The doc string says this:
This is an internal function; Lisp code should call `tooltip-show'.
Why? While it is true that you can get, using `tooltip-show', the
behavior of arg PARMS by binding `tooltip-frame-parameters', the behavior
of args DX and DY by binding `tooltip-x-offset' and `tooltip-y-offset',
and the behavior of arg TIMEOUT by binding `tooltip-hide-delay' (which is
not documented, BTW), you cannot the behavior of arg FRAME. And binding
user options is not really a great way to control the function behavior,
in general.
So `tooltip-show' is not really a user-level substitute for "internal"
`x-tooltip-show'.
What's more, the doc of `tooltip-show' explicitly refers to how variable
`x-max-tooltip-size' affects the behavior. Why refer to that "internal"
variable? And if it is not "internal" then why does it have the prefix
`x-'? Why isn't there a `tooltip-max-size' option, corresponding to the
other `tooltip-*' options?
It looks like this design/implementation is incomplete. It is great to
have `tooltip-mode' and `tooltip-show'. But we should not be telling
users to use only `tooltip-show' and not `x-show-tip'. I see no reason
for that. The two functions are different; that's all. Neither should
be considered more "internal" than the other.
In GNU Emacs 25.0.50.1 (i686-pc-mingw32)
of 2014-10-20 on LEG570
Bzr revision: 118168 rgm@gnu.org-20141020195941-icp42t8ttcnud09g
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
`configure --enable-checking=yes,glyphs CPPFLAGS=-DGLYPH_DEBUG=1'
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