Wayland++ 1.0.0
C++ Bindings for Wayland
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pingpong.cpp
1/*
2 * Copyright (c) 2022, Nils Christopher Brause
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
18 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include <iostream>
27#include <thread>
28
29#include <wayland-client.hpp>
30#include <wayland-server.hpp>
31#include <pingpong-server-protocol.hpp>
32#include <pingpong-client-protocol.hpp>
33
34int main()
35{
36 wayland::server::display_t server_display;
37 wayland::server::global_pingpong_t global_pingpong(server_display);
38 wayland::server::global_dummy_t dummy(server_display);
39 wayland::server::pingpong_t server_pingpong;
40
41 // create wayland UNIX socket.
42 server_display.add_socket("pingpong");
43
44 // Answer ping requests.
45 global_pingpong.on_bind() = [&] (const wayland::server::client_t& /*client*/, wayland::server::pingpong_t pingpong)
46 {
47 // Don't copy the "pingpog" resource into the event handler as this creates cyclic references.
48 server_pingpong = pingpong;
49 pingpong.on_ping() = [&] (const std::string& msg)
50 {
51 std::cout << "Server received: " << msg << std::endl;
52 server_pingpong.pong(msg);
53 };
54 };
55
56 // Don't show anyone the dummy global.
57 server_display.set_global_filter([] (const wayland::server::client_t& /*client*/, wayland::server::global_base_t global) { return !global.has_interface<wayland::server::dummy_t>(); });
58
59 // Run server event loop in a thread.
60 bool running = true;
61 auto thread = std::thread([&] ()
62 {
63 auto el = server_display.get_event_loop();
64 while(running)
65 {
66 el.dispatch(1);
67 server_display.flush_clients();
68 }
69 });
70
71
72 // Connect to server.
73 wayland::display_t display("pingpong");
74
75 // Bind to pingpong global.
76 wayland::pingpong_t pingpong;
77 auto registry = display.get_registry();
78 registry.on_global() = [&] (uint32_t name, const std::string& interface, uint32_t version)
79 {
80 std::cout << "Found global: " << interface << std::endl;
81 if(interface == wayland::pingpong_t::interface_name)
82 registry.bind(name, pingpong, version);
83 };
84 display.roundtrip();
85
86 // Print pong answers.
87 pingpong.on_pong() = [&] (const std::string& msg)
88 {
89 std::cout << "Client received: " << msg << std::endl;
90 running = false;
91 };
92
93 // Send ping request.
94 pingpong.ping("Hello World!");
95 display.roundtrip();
96
97 thread.join();
98 return 0;
99}
Represents a connection to the compositor and acts as a proxy to the display singleton object.