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* etc/TODO: Update some entires related to macOS and NS.

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Xwidgets have worked on NS for a long time, "smooth scrolling"
is now available as `pixel-scroll-precision-mode' for all GUI
platforms, and some mouse gestures have been implemented on NS
and X.
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Po Lu 2022-02-14 14:05:46 +08:00
parent 32fbda5c37
commit 0ba1ecc816
1 changed files with 14 additions and 27 deletions
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etc/TODO
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@ -907,17 +907,17 @@ It would make it easy to add (and remove) mappings like
*** Missing features
This sections contains features found in other official Emacs ports.
**** Support for xwidgets
Emacs 25 has support for xwidgets, a system to include operating
system components into an Emacs buffer. The components range from
simple buttons to webkit (effectively, a web browser).
**** Improved xwidgets support
Emacs 25 has support for xwidgets, a system to include WebKit widgets
into an Emacs buffer.
Currently, xwidgets work only for the gtk+ framework but they are
designed to be compatible with multiple Emacs ports.
They work on NS, but not very well. For example, trying to display a
xwidget in the "killed" state will make Emacs crash. This is because
the NS code has not been updated to keep with recent changes to the
X11 and GTK code.
(See the scratch/nsxwidget branch, and the discussion around
Objective-C code and GCC at
https://lists.gnu.org/r/emacs-devel/2019-08/msg00072.html )
Many features such as xwidget-webkit-edit-mode do not work correctly
on NS either.
**** Respect 'frame-inhibit-implied-resize'
When the variable 'frame-inhibit-implied-resize' is non-nil, frames
@ -990,29 +990,16 @@ It has been maintained in parallel to the official Cocoa-based NS
interface. The Carbon interface has been enhanced, and a number of the
features of that interface could be implemented NS.
**** Smooth scrolling -- maybe not a good idea
Today, by default, scrolling with a trackpad makes the text move in
steps of one line. (Scrolling with SHIFT scrolls horizontally.)
The "mac" port provides smooth, pixel-based, scrolling. This is a very
popular feature. However, there are drawbacks to this method: what
happens if only a fraction of a line is visible at the top of a
window, is the partially visible text considered part of the window or
not? (Technically, what should 'window-start' return.)
Note: This feature might not be allowed to be implemented until also
implemented in Emacs for a free system.
**** Mouse gestures
The "mac" port defines the gestures 'swipe-left/right/up/down',
'magnify-up/down', and 'rotate-left/right'.
It also binds the magnification commands to change the font
size. (This should be not be done in a specific interface, instead
Emacs should do this binding globally.)
The magnify gestures have now been implemented on X11 and NS. The
event is named differently: it is named `pinch', but it does the same
thing.
Note: This feature might not be allowed to be implemented until also
implemented in Emacs for a free system.
Someone needs to figure out what the other gestures do in the Mac
port, implement them on X, and then following that, on NS.
**** Synthesize bold fonts