https://github.com/drewt/chicken-wayland-server
CHICKEN Scheme bindings for the libwayland server API
https://github.com/drewt/chicken-wayland-server
chicken-scheme chicken-scheme-eggs wayland
Last synced: 7 months ago
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CHICKEN Scheme bindings for the libwayland server API
- Host: GitHub
- URL: https://github.com/drewt/chicken-wayland-server
- Owner: drewt
- License: mit
- Created: 2019-02-08T03:52:41.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2019-03-02T05:11:18.000Z (over 6 years ago)
- Last Synced: 2024-10-24T08:30:11.759Z (12 months ago)
- Topics: chicken-scheme, chicken-scheme-eggs, wayland
- Language: C
- Size: 19.5 KB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: COPYING
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README
wayland-server
==============
CHICKEN Scheme bindings for the libwayland server API.
Building
--------
Dependencies:
* CHICKEN 5
* libwayland
Run chicken-install in this directory to build and install the
bindings.
Usage
-----
(import wayland-server)
### Naming Conventions
Procedures use the usual kebab-case convention. Predicates get a ?
suffix, e.g. wl-list-empty?.
Struct members are available as SRFI-17 getters/setters named
struct-name-member-name.
Enums use the convention enum-prefix/kind, e.g.
wl-seat-capability/pointer.
### Differences from the C API
#### wl\_listener
The make-wl-listener function takes a procedure of one argument
and returns a *wrapped* wl\_listener struct. The argument to this
procedure is the void\* argument that would normally be passed to
a regular wl\_listener.
In C, you would put your wl\_listener inside of another struct
and use the wl\_container\_of macro to access its contents from
the listener's notify function. In Scheme, you should set up a lexical
environment where your data is available, and then create a lambda to pass
to make-wl-listener. Or you could implement the usual callback +
user-data convention with a simple wrapper, like so:
(define (*make-wl-listener proc arg)
(make-wl-listener (lambda (wl-arg) (proc arg wl-arg))))
#### wl\_list
The wl\_list\_for\_each family of macros are available as
procedures:
(wl-list-for-each list proc #!optional (convert values))
(wl-list-for-each/safe list proc #!optional (convert values))
(wl-list-for-each/reverse list proc #!optional (convert values))
(wl-list-for-each/reverse-safe list proc #!optional (convert values))
The convert argument should be a function taking a
wl\_list argument and returning some other data type. It is called
on each node and the result is passed to the procedure proc.
A function wl-list-\>list is provided for converting from
wl\_list to native Scheme lists.