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Lloyd Pique ed016b240f client: Add message observer interface 
Client message observers 2/6

Introduce a client message observer interface, strongly resembling the server
protocol logger interface added in commit 450f06e2.

This means a new pair of public API functions:

* wl_display_create_client_observer(): allows a client to register an observer
  function, which is called for messages that are received or sent.

* wl_client_observer_destroy() which destroys the observer created by the prior
  function.

With these changes, a client can set and clear an observer at run-time, and can
use it to log client messages to a location other than stderr.

The existing protocol-logger-test has also been revised and extended to demonstrate
using the new API for test use, to validate the sequence of messages sent and
received by the client, on top of the existing checks to do the same for the
server messages.

Signed-off-by: Lloyd Pique <lpique@google.com>
2024-08-12 15:37:15 -07:00
.gitlab/issue_templates gitlab: make issue template the default 2023-11-21 15:44:31 +00:00
cursor src: Finish assert() clean-up 2024-08-09 20:38:52 +00:00
doc doc: Require strings to be UTF-8 2024-08-09 20:33:05 +00:00
egl egl: Disable symbols check for static builds 2024-03-28 13:13:47 +00:00
protocol protocol: clarify divergence in compositor behaviour 2024-05-29 14:23:38 +02:00
src client: Add message observer interface 2024-08-12 15:37:15 -07:00
tests client: Add message observer interface 2024-08-12 15:37:15 -07:00
.editorconfig editorconfig: add settings for the .gitlab-ci.yml file 2020-06-05 08:22:34 +10:00
.gitignore build: drop autotools 2021-03-05 09:15:04 +00:00
.gitlab-ci.yml ci: use detached MR pipelines 2024-08-09 20:46:58 +00:00
.mailmap Add a .mailmap file 2023-03-25 11:17:32 -05:00
.triage-policies.yml Add a triage-policies file for bugbot 2023-07-07 21:18:08 +10:00
CONTRIBUTING.md CONTRIBUTING: fix typo "excercising" 2020-12-17 16:03:14 -05:00
COPYING COPYING: Update to MIT Expat License rather than MIT X License 2015-06-12 15:31:21 -07:00
meson.build build: re-open main branch for regular development 2024-05-30 21:07:24 +02:00
meson_options.txt meson: Use proper type for bools 2022-04-02 17:04:08 +03:00
README.md readme: convert to Markdown 2023-02-13 19:57:15 +01:00
release.sh release.sh: Don't push *all* tags 2023-01-16 10:03:54 +00:00
releasing.txt Add release.sh 2022-07-14 08:04:43 +00:00
wayland-scanner.m4 build: check wayland-scanner version 2020-01-16 17:25:06 +01:00
wayland-scanner.mk Pass input/output files as arguments to wayland-scanner 2017-08-18 15:20:24 +03:00

README.md

Wayland

Wayland is a project to define a protocol for a compositor to talk to its clients as well as a library implementation of the protocol. The compositor can be a standalone display server running on Linux kernel modesetting and evdev input devices, an X application, or a wayland client itself. The clients can be traditional applications, X servers (rootless or fullscreen) or other display servers.

The wayland protocol is essentially only about input handling and buffer management. The compositor receives input events and forwards them to the relevant client. The clients creates buffers and renders into them and notifies the compositor when it needs to redraw. The protocol also handles drag and drop, selections, window management and other interactions that must go through the compositor. However, the protocol does not handle rendering, which is one of the features that makes wayland so simple. All clients are expected to handle rendering themselves, typically through cairo or OpenGL.

Building the wayland libraries is fairly simple, aside from libffi, they don't have many dependencies:

$ git clone https://gitlab.freedesktop.org/wayland/wayland
$ cd wayland
$ meson build/ --prefix=PREFIX
$ ninja -C build/ install

where PREFIX is where you want to install the libraries.

See https://wayland.freedesktop.org for documentation.